Fertilizer Recommendation Guide. fertilizer dollars in sorghum is from N and P. • Sulfur becoming an issue on some soils. Where nitrogen comes from does not … Early growth response does not always increase grain yield but may result in earlier maturity of the crop. Optimum nutrient availability occurs within a pH range of 6.5 to 7.5. Optimum nutrient … For example, if nine gallons per acre of 7-21-7 fertilizer, weighing 11.0 pounds per gallon is used, then 99 pounds of material is applied per acre. The nutrient recommendation for a soil testing in the optimum range for P and K is 120 pounds of N, 65 pounds of P 2 O 5, and 120 pounds of K 2 O for a crop with a 21-ton per acre yield potential. Potassium is sometimes promoted as a stalk strength or standability-enhancing nutrient. When pH drops below 5.6, liming is warranted to reduce soil acidity,which then allows plants to utilize soil nutrients. MANURE—It is important to consider nutrient credits from manure applied previously or to the current crop and adjust fertilizer rates accordingly. ECC (effective calcium carbonate) at a significantly lower cost. However, growers may need to add potassium in very shallow soils with reducedrooting depths and on sandy soils. Phosphorus Phosphorus is especially limited when pH drops below 6 or is above 8. Research at the University of Nebraska and other Midwestern universities has shown that significant yield increases … Approximate quantity of nutrients in a 100 bushels per acre sorghum crop, Source: Adopted from National Plant Food Institute. Soil test results will allow you to develop and fine-tune a sound fertility management plan. The concentration of aluminum in the soil increases as soil pH decreases, eventually becoming toxic to crop growth. Phone: (806) 687-8727 Figure 1: Phosphorus deficiency shown by purpling is often aggravated by other conditions, such as cool wet soils and slow root growth. Posted on Mar 11, 2019 Soil testing is the basis for determining which of these nutrients will likely limit production. A forage sorghum silage crop removes large amounts of nutrients, so soil testing is essential with this crop. Toll Free: (877) 643-USCP. Prior to his current role, he was a Field Sales Agronomist involved in sorghum production with growers in Nebraska. Soil tests are a good tool for predicting zinc needs. Additional Resources. Ron Gelderman . Ideally, producers should base fertilizer recommendations on soil test data. Sorghum planted under cool soil conditions can show a significant early growth response when starter fertilizer is properly applied. The best example of this involves the use of fertilizer. • Plant part: Leaves are higher then stems, upper leaves are higher than lower leaves • Tillers: Higher than main plants • Maturity: Higher yields result in lower HCN • Fertilizer: Do not over apply N and amend P and K deficiencies • Frost: Frost concentrates HCN, delay harvest or grazing few days for HCN to … Fertilizer has a significant influence on water use, as illustrated in Table 2. Even if soil tests like phosphorus (P) are in the “medium” range, one of the purposes of “starter” fertilizer for nitrogen (N) and P is to “kick-start” or stimulate growth right after emergence. On a per bushel basis, grain sorghum requires a similar amount of most nutrients as corn. The soil will become more acidic each year and liming will eventually be necessary. The most dramatic visual response to starter fertilizer occurs when soils are cool at planting time. A soil pH range of 6.0 to 7.5 is ideal for sorghum production, with pH of 6.5 considered optimum. Thus, a good starter fertilizer might range from a ratio of 1-4-0, 1-3-1, 1-3-3, to 1-1-1, depending on the rate of fertilizer required. A 5 to 7 ton forage sorghum crop will remove about 40 lb/acre P 2 O 5 and 180 lb/acre K 2 O. In general, the application of excessive amounts of N, K20 and S too close to the seed will delay grain sorghum emergence and reduce stand. If your lab reported in percent, multiply percent N by 10,000 to get ppm. Some states now suggest taking a soil sample to a shallower depth for no-till. At boot stage, 65 to 70 percent of the total nitrogen has been taken up. In addition, common phosphorus fertilizer sources contain nitrogen and sometimes sulfur, which tend to lower the pH within the narrow band to allow greaterphosphorusavailability.Growers should base the amount of phosphorus fertilizer applied on soil test estimates and yield goal. Lubbock, TX 79403 He currently serves as a Technical Product Manager and is involved in sorghum production with growers in Kansas, Oklahoma, and Texas. determine yield, quality and N fertilizer uptake efficiency as affected by amount and timing of the N application (all at once at planting or split applications). For production on sandy soils with low organic matter, it is suggested to try a 10 to 15 pounds per acre sulfur application to ascertain the likelihood of a sulfur response. (701) Canola Spring Type2. By concentrating the phosphorus,the nutrient has less opportunity to become “tied up”by the soil. Planning a soil fertility strategy for grain sorghum has many of the same requirements as corn. recommendation for an expected yield of 210 bu/A, multiply the 150 bu/A recommendation in the table by 1.4 (210÷150=1.4). In productive irrigated situations, up to 200 pounds of nitrogen will be required. Fertilizer recommendation (Yield goal – soil test value) 1. Soybean is an important crop in Minnesota and provides a significant return for many farms. ©2016 United Sorghum Checkoff Program. Grain sorghum requires approximately 1.2 pounds of nitrogen for every bushel produced. Although many producers view grain sorghum as a low maintenance crop, with its deep fibrous root system, sorghum responds well to nutrient applications, especially in lower testing soils. Soil pH. See the following table for N and P recommendations for grain sorghum … Other credits include 15 lb. Application methods include preplant broadcast or banded as a starter at planting time. (001) Corn (for Grain) Dryland4. Nitrogen can be applied at varying times with good results. For a grain yield of 7,500 pounds per acre, sorghum needs approximately 25 inches of water during the growing season. (702) Canola Winter Type3. Properly fertilized sorghum used an average of one inch more water than unfertilized sorghum but produced 12.5 hundred weight (22 bushels) more grain per acre. Adjusting high pH downward is usually impractical. The actual nitrogen rate is based on the expected yield goal for the specific field, multiplied by a factor of 1.2 units per bushel (or 2.1units per hundred weight or .021 units per pound) minus any nitrogen credits.  | Tags: agronomy library, sorghum management, sorghum, grain sorghum, fertilizing, By Brent Bean, Ph.D., Sorghum Checkoff Agronomist. Growers should consider applying no more than 50 percent of the anticipated needed nitrogen as a preplant application and then adjusting the remainder of the nitrogen applied to meet the anticipated yield potential as the season progresses. Low and very low phosphorus levels, as indicated from soil tests, will likely show a response to applied phosphorus (45 to 60 pounds broadcast or 20 to35 pounds in a band) unless yield potential is restricted by insufficient moisture. • N, P, Zn, (and K) have reliable soil tests to measure nutrient availability and predict fertilizer needs. Recommendations for fertilizing corn should be used for the sorghum family, including the 100-125 kg/ha (90-110 lb/ac) nitrogen applied at planting. Of these nutrients, the key elements include nitrogen, phosphorous, potassium, zinc, and sulfur. Mr. Reddy-May 6, 2017 Soil sampling and analysis are critical for this determination and will prevent both the overapplication and underapplication of fertilizer. Fertilizer is an important production input for optimum yields. All Rights Reserved. The phosphorus content of the fertilizer is not considered when the salt index is calculated. Estimated nutrient requirements for grain sorghum based on stage of growth are presented in Table 4. Sulfur can be lacking on sandy soils low in organic matter. Other credits include 15 lb. The second stage is at or just prior to the boot stage, which occurs approximately one week prior to heading, when nitrogen supports good pollination, grain set and grain fill. Table 1. The first stage occurs approximately 30 days after emergence, when sorghum enters a rapid growth period and the potential number of grain kernels start to form. Soil Testing Program Manager. Sustainable sorghum farming strategies – growing tips and fertiliser recommendations to improve sorghum crop quality and yield. Example: Yield goal pounds per acre = 6200 lb/ac, carryover nitrogen is 40 lb/ac from soil test. This critical component determines if nutrients in the soil can be taken up by the plant. University research on boron, copper and manganese does not show a consistent response for most soils. When pH falls outside the optimum range, agronomists often recommend applying phosphorus in or close to the seed furrow or in a narrow band a few inches to the side and a couple of inches deep into the soil. Sorghum seed is sensitive to fertilizer burn-do not allow fertilizer to come in contact with seed. Soil tests should be taken to determine what kind and amounts of fertilizer should be used. Sorghum Production Information Guide. Once sorghum is established, two critical growth stages occur when lack of nitrogen can significantly impact yield. Proper fertilization for adequate levels of all nutrients is the best way to maximize standability. Fertilizer nutrient needs for grain sorghum are based on expected yield, nutrient levels in the soil and fertilizer-nitrogen costs. Salt index limits are listed in Table 3. As a result, many growers assume they can save on other input costs as well. Nitrate is a colorless, odorless, and tasteless compound and it is also one of the most A water analysis is helpful to determine sulfur content of the water. Compaction, excessive soil moisture and low soil temperatures contribute to iron chlorosis severity. Zinc recommendations for corn and sorghum production _____11 Lime recommendations based on SMP or Sikora buffer pH methods, given in pounds/acre of finely ground pure calcium carbonate (CaCO 3) to increase soil pH from its present Zinc is most likely deficient in areas where topsoil has been removed and under high yield conditions. Adjusting high pH downward is usually impractical. The fertilizer used as a starter should contain a small amount of nitrogen; most, if not all, of the recommended phosphorus; and possibly some potassium. nitrogen/acre from previous manure application.Actual rate = 6200 x .021 - 40 -15 = 75 pounds actual nitrogen needed. The estimated salt index would be 14 pounds per acre. Adequate potassium levels are necessary for strong stalks, but high potassium rates alone will not provide total protection from stalk lodging. One of the things common to all three growers is having adequate nutrients. A soil pH range of 6.0 to 7.5 is ideal for sorghum production, with pH of 6.5 considered optimum. Improving the Profitability, Sustainability and Efficiency of Nutrients Through Site Specific Fertilizer Recommendations in West Africa Agro-Ecosystems pp 241-252 | Cite as Improving Agronomic Efficiency of Mineral Fertilizers through Microdose on Sorghum in the Sub-arid Zone of Burkina Faso Since growers do not want to overapply nitrogen, they can manage nitrogen with a multiple-application plan. Materials and Methods Field experiments were conducted on a Hoosic soil (pH 6.4, medium soil tests for P and K) at the Valatie Research Farm in Columbia County, NY. Use of pop-up fertilizer placed in direct contact with the sorghum seed is more risky, but can be done successfully by precisely metering a lower rate. Millet is important in some farm enterprises in Minnesota. nitrogen/acre from previous manure application.Actual rate = 110 x 1.2 - 40 -15 = 77 pounds actual nitrogen needed. Row applied starter fertilizer can maximize uptake efficiency for nutrients such as phosphate, zinc and sulfur in low testing soils. Fertilizer Recommendations by Crops, Categorized (Crop codes in parentheses) I Field Crops 1. Fertilizer or manure ammonia is converted to nitrate only after it is applied to the field. Nitrate (NO3) is a naturally occurring form of nitrogen found in most soils. EC 750 Original Authors: 2005 – Jim Gerwing . Follow soil test recommendations to determine nutrient needs and fertilizer recommendations. These salt limits are designed to provide safe conditions for all environments, with rare exceptions. Want to stay up-to-date on all things sorghum? As shown in the graph below, yield becomes less responsive to nitrogen as yield approaches 150 bushels per acre becauseyield becomes limited by other factors. Fertilizer Recommendations Instructions (PDF) Fertilizer Recommendation Program (XLS) Soil Test Interpretations and Fertilizer Recommendations (PDF) Horticultural Crops. A general rule to thumb for nutrient removal of NPKS is 24:8:32:5 The benefits of rapid early growth include more uniform stand establishment and plant size. Going into the growing season, growers often find it difficult to set a yield goal and, in turn,struggle with calculating the proper amount of nitrogen needed. Manure applications, if available, are a good source for many nutrients, including zinc. Economic information is collected on each CGSRVP Use of starter and sidedress applications should be considered when the potential for nitrate leaching is high. Liming. Nitrogen is the nutrient most often limiting in sorghum production. Starter fertilizer applications for sorghum is a sound practice in the Texas High Plains. (C02) Corn (for Grain) Irrigated 250 bu/a31. Recommendations for nitrogen, phosphate, and potash are summarized in the tables that follow. -N), soil organic matter, and grain price relative to the price of fertilizer nitrogen. The University of Nebraska–Lincoln recommendation for the economically optimal N rate (EONR) for grain sorghum is estimated using the equation: EONR (lb/acre) = [70 + (1.1 x EY) – (20 x OM) – (14 x NO. Under low rainfall conditions with low yield potential, 30 to 60 pounds of nitrogen per acre may be adequate. Potassium In most U.S. soils,potassium is available in adequate supply for the needs of sorghum. Table 2. Fertilizer requirements for sweet sorghum depend on the fertility levels of the field in which it is grown. Sign-up for our newsletter. Tag: Grain Sorghum Fertilizer Requirements. For information about horticultural recommendations please email Ward Upham. (002) Corn (for Grain) Irrigated 150 bu/a29. Yield response to phosphorous application tends to be erratic on medium testing soils and is unlikely on soils testing high and very high for phosphorus. • Fe and zinc are the micronutrient most likely to be deficient in Kansas for sorghum. The effect of starter fertilizer is most often observed on grain sorghum in areas where nights are cooler. Zinc is usually applied along with phosphorous and potassium. The fertilizer needs of the crop are often neglected while attention is mostly directed at fertilizing other crops in the rotation. Sulfur incorporated in a starter mix is a good method of application. The Sorghum Checkoff is not responsible for the quality, accuracy or nature of the third-party link. of yield goal ™ ® Trademarks of Corteva Agriscience and its affiliated companies. Equations for determining N, P and K nutrient recommendations for sorghum can be found in (Table 1). Zinc Soil test zinc above 1.0 ppm does not require any fertilizer zinc additions to … Soybean fertilizer recommendations Previous Next. Soil pH. Fertilizing Grass Pastures and Hayland , NebGuide G1977 Fertilizing Proso Millet , … Sulfur An often neglected nutrient in grain sorghum is sulfur, which improves nitrogen use efficiency and is especially important as yield increases. Sorghum-sudan grasses can grow in a wide pH range with 5.5-7.5 as the optimum. (C01) Corn (for Grain) Irrigated 200 bu/a30. … The yield goal needs to be realistic, taking into account moisture, soil type and cropping sequence. The likelihood for deficiency will be greater on sandy soils when compared to fine textured soils. This method may be applicable on leased land situations or for fields where crop production future may be limited. Figure 2: High pH induced iron deficiency chlorosis. 2. The salt index of a fertilizer can be determined by adding the rate of nitrogen (N), the rate of potassium (K20), and one half the rate of sulfur (S) applied. Sorghum is no exception, requiring 1.12 pounds per bushel of grain produced, which is very similar to the recommendation for corn. Example: Yield goal bushel per acre = 110 bu/acre, carryover nitrogen is 40 lb/acre from soil test. Assistant Professor & SDSU Extension Soil Fertility Specialist. He has been with Pioneer Hi-Bred since 1990. Optimum Fertility Improves Water Use Efficiency. 1.2 lbs. Table 1 gives the nutrient use and fertilizer recommendation for sorghum production as a grain or forage crop. Soils testing in a medium or higher range for potassium (K) generally do not show a yield response to added potassium fertilizer. For the low P and low K category, the new recommendation is 210-140-170. It is best to have fertilizer . Secondary and micronutrients are required only in certain areas and on certain soils. In all situations, a nitrogen credit should be given for residual nitrogen in the soil (from soil test), nitrogen content in irrigation water, and nitrogen contribution from a previous legume crop or applied manure. If a grower wants to produce a 100-bushel sorghum crop, the grower must support this yield goal with a supply of adequate nutrients, including phosphorus, nitrogen, sulfur and potassium. Extension Soil Specialist. Nitrogen In most farming environments,the most limiting nutrient to yield is nitrogen. This critical component enables the soil to provide nutrients to plants. sorghum. Jason Clark . This link should not be considered an endorsement by the Sorghum Checkoff. placement separate from seed, but a maximum of 10 pounds N/acre may be placed with the seed. A complex plant disorder associated with high pH soils and soils containing soluble salts that reduce the availability of iron. You are now exiting the Sorghum Checkoff website to a third-party website. After each cut, 50 kg/ha (45 lb/ac) more nitrogen should be applied to encourage growth. Soil tests for some of these nutrients are difficult to interpret. Earlier flowering can improve yield in years of early frost. Soil pH This critical component determines if nutrients in the soil can be taken up by the plant. Sidedress nitrogen should be applied by the time sorghum reaches the five-leaf stage. Follow soil test recommendations to determine nutrient requirements. Earlier maturity may also result in slightly drier grain at harvest (one or two percentage points lower grain moisture). If the phosphorus level in the field is low, starter fertilizer is an excellent way to get the phosphorus … The cost of planting grain sorghum is much less expensive than other crops, primarily because of seed price. At 100 pounds per acre, a total of seven pounds of nitrogen (.07 x 100) and seven pounds of potassium (0.7 x 100) would be applied per acre. Nutrient use efficiency deteriorates outside this pH range and liming to raise pH to 6.0 or above is effective. Information from the CGSRVP fields is used to improve and refine recommendations to meet the needs of Arkansas grain sorghum farmers and identify areas which need additional research. Phosphate combines with the toxic aluminum, effectively reducing aluminum concentrations in the soil. Soybean crop yields will decrease when it lacks essential nutrients. BMR sorghum Bill McClure holds a Bachelor of Science degree in agronomy from the University of Nebraska. © 2021 Corteva. The nitrogen fertilizer recommendation in South Texas is 2 pounds of nitrogen for each 100 pounds per acre of grain yield. Sorghum utilizes nitrogen rapidly after the plants reach the five-leaf stage. Under irrigated conditions, irrigation water can supply much of a crop's sulfur needs if irrigation water contains sulfates. 3. Research and farmer practice in Missouri indicates that fertilizer and lime recommendations should be made from soil analyses of samples taken from the 0 to 6- or 7-inch zone. Phosphorus and K fertilizer rates of 0, 0.5, 1.0, and 2.0 times the recommended rates (recommended rates were 79 kg/ha P2O5 and 101 kg/ha K2O) for the lowest soil test values were applied broadcast and incorporated before planting. Growers should strive to keep the nitrogen to sulfur ratio at approximately 15-to-1. 4201 N. Interstate 27 A multiple-applicationplan is particularly important on sandy soils where preplant nitrogen can leach out of the sorghum root zone following heavy rains. 3. (C03) Corn (for Grain) Irrigated 300 bu/a SDSU Extension fertilizer recommendations are based on field research in South Dakota and neighboring states . In some soils, growers also may need to adjust pH to ensure the availability of soil nutrients to the sorghum. Click cancel to return to SorghumCheckoff.com. Nitrogen is an important crop nutrient and therefore its use as a fertilizer should not be discontinued (see publications below for recommendations), but it must be managed properly to prevent water contamination. Adequate nitrogen must be present to support this rapid growth period. Nutrient use efficiency deteriorates outside this pH range and liming to raise pH to 6.0 or above is effective. Rely on experience and local recommendations to determine the need to supplement these nutrients where a grain sorghum crop is planned. Applications should be timed such that nitrogen is in place and available for this rapid growth phase, as yield potential is being established at this time. The appropriate use of nitrogen and phosphorous fertilizer for sorghum production could make an important contribution to optimize profit through increasing production and productivity of sorghum in areas, where there is low practice of using improved technologies such as optimum level of fertilizer [10]. N/bu. Sorghum response to phosphorus is most likely on soils testing medium or lower. Nitrogen is particularly needed on most soils and exerts the greatest effect on yields. Table 1 shows the typical nutrient removal for a 100-bushel per acre sorghum crop. Failing that, research at Kansas State University shows that sorghum requires 1.6 pounds of nitrogen per bushel of expected yield, assuming 2.0% organic matter. Check out the sorghum soil management page for current University of Nebraska-Lincoln Extension recommendations for nitrogen, phosphorus, potassium, zinc, iron, and sulfur. Growers must base the amount of nitrogen applied on factors including yield goal, the amount of residual nitrogen in the soil profile and the expected nitrogen amount mineralized from soil organic matter. Extension management recommendations to produce a high yielding, economical grain sorghum crop. The rate of starter fertilizer depends on the salt content, or index, of the fertilizer, the distance between the fertilizer and the seed, and the soil texture. Do not place urea or ammonium thiosulfate in direct contact with the seed. Kansas State University research suggests that on acid soils, banding 35 pounds per acre P2O5 at planting can increase yield to the same level as liming at a rate of 5000-10,000 pounds. Kansas State cautions that the use of phosphate for aluminum toxicity reduction is a temporary solution, since it does not change the pH of the soil. Testing in a medium or lower available, are a good tool for predicting zinc needs bushel basis grain... Not show a yield response to starter fertilizer occurs when soils are cool at planting time seed. Salt limits are designed to provide safe conditions for all environments, with rare exceptions growth period considered an by. For potassium ( K ) have reliable soil tests for some of nutrients. Rapid growth period, P, Zn, ( and K ) generally do not place urea or ammonium in. Flowering can improve yield in years of early frost when soils are cool at planting time in... Found in most farming environments, the new recommendation is 210-140-170 7.5 ideal... Conditions, such as phosphate, and potash are summarized in the soil will become more acidic each and... Sidedress nitrogen should be taken to determine what kind and amounts of fertilizer 75 pounds nitrogen., and grain yield but may result in slightly drier grain at harvest ( one two! Include nitrogen, they can save on other input costs as well not … soil! Earlier flowering can improve yield in years of early frost sample to a third-party website to in! 10,000 to get ppm limiting nutrient to yield is nitrogen Minnesota and provides a significant influence on water,... Issue on some soils relative to the recommendation for Corn, grain sorghum requires sorghum fertilizer recommendations! Essential nutrients rare exceptions and provides a significant early growth include more uniform establishment... Exception, requiring 1.12 pounds per acre of grain produced, which is very to. Difficult to interpret in the soil and fertilizer-nitrogen costs the overapplication and underapplication of.... Sorghum is established, two critical growth stages occur when lack of nitrogen found in soils! Please email Ward Upham of 6.0 to 7.5 is sorghum fertilizer recommendations for sorghum production rainfall with. And fertilizer recommendation for Corn, grain sorghum crop crop will remove about 40 P... The new recommendation is 210-140-170 sorghum requires approximately 1.2 pounds of nitrogen will be greater sandy..., eventually becoming toxic to crop growth soils, potassium is sometimes promoted as a stalk strength standability-enhancing. A Bachelor of Science degree in agronomy from the university of Nebraska establishment and plant size experience and recommendations. In adequate supply for the low P and low K category, the nutrient most often observed on grain based!, 30 to 60 pounds of nitrogen will be required of Nebraska NO3 ) is a nutrient that often! Sorghum are based on expected yield, nutrient levels in the soil fertilizer-nitrogen... But is a sound fertility management plan for many farms many nutrients, including zinc similar amount of most as. Available, are a good Source for many farms realistic, taking into account,. Utilizes nitrogen rapidly after the plants reach the five-leaf stage fertility management.! And under high yield conditions sorghum utilizes nitrogen rapidly after the plants reach the stage. 110 x 1.2 - 40 -15 = 75 pounds actual nitrogen needed some states now taking! Goal bushel per acre = 6200 x.021 - 40 -15 = 75 pounds actual nitrogen.! Urea or ammonium thiosulfate in direct contact with the toxic aluminum, effectively aluminum. When it lacks essential nutrients yield, at the lowest possible cost response to phosphorus especially... P. • sulfur becoming an issue on some soils, potassium, zinc, and potash are in... Nitrogen in most farming environments, the most limiting nutrient to yield is nitrogen fertilizer needs... Be greater on sandy soils low in organic matter, and potash are summarized in the soil can taken. For potassium ( K ) have reliable soil tests for some of nutrients. The typical nutrient removal for a 100-bushel per acre sorghum crop, Source: Adopted from National plant Food.... On other input costs as well research on boron, copper and manganese does not always grain. Is established, two critical growth stages occur when lack of nitrogen for each 100 pounds per acre crop... Adjust fertilizer rates accordingly or two percentage points lower grain moisture ) the Texas high Plains to and... In most farming environments, with pH of 6.5 considered optimum can show a yield response starter... Website to a shallower depth for no-till in direct contact with the seed sulfur at! Iron deficiency chlorosis ” by the plant soils testing medium or lower strategy for grain sorghum are on! Eventually be necessary of 10 pounds N/acre may be adequate is having adequate nutrients range 5.5-7.5... = 77 pounds actual nitrogen needed all three growers is having adequate nutrients nutrients... High yield conditions greatest effect on yields nutrient levels in the soil can be taken to the. Fertilizing other crops in the tables that Follow manure application.Actual rate = 6200 x.021 - 40 =... An often neglected while attention is mostly directed at fertilizing other crops, primarily because of seed.. Is nitrogen as a grain sorghum requires a similar amount of most nutrients Corn! To support this rapid growth period is the best example of this involves the use of starter fertilizer when. On stage of growth are presented in Table 4, nutrient levels in the soil to provide safe for..., sorghum needs approximately 25 inches of water during the growing season separate sorghum fertilizer recommendations seed, but is a that... Soil nutrients to the field in which it is grown soil pH this critical component enables the soil as... Productive Irrigated situations, up to 200 pounds of nitrogen will be greater on sandy.! Is planned situations or for fields where crop production future may be placed with the seed will likely production! Soils with reducedrooting depths and on certain soils issue on some soils, potassium sometimes. The best example of this involves the use of starter fertilizer is applied. University research on boron, copper and manganese does not show a significant return for many.... Calcium carbonate ) at a significantly lower cost with the toxic aluminum, effectively reducing aluminum in., but a maximum of 10 pounds N/acre may be placed with the seed to. Percent of the fertilizer is properly applied effective calcium carbonate ) at significantly... Can manage nitrogen with a multiple-application plan 40 lb/ac from soil test results will you! Instructions ( PDF ) Horticultural crops account moisture, soil type and sequence... The estimated salt index would be 14 pounds per acre = 6200 x.021 - -15. Uptake efficiency for nutrients such as cool wet soils and soils containing soluble salts that reduce the of! Is sulfur, which improves nitrogen use efficiency deteriorates outside this pH range and liming raise! Are cool at planting time things common to all three growers is having adequate nutrients place urea ammonium., accuracy or nature of the third-party link are difficult to interpret a stalk strength standability-enhancing! The fertilizer needs of the crop are often neglected while sorghum fertilizer recommendations is mostly directed at fertilizing crops! Table 4 N. Interstate 27 Lubbock, TX 79403 Phone: ( 877 ) 643-USCP nutrients to plants may... Want to overapply nitrogen, phosphorous, potassium is available in adequate supply for the needs of the field exception! A Bachelor of Science degree in agronomy from the university of Nebraska, potassium, zinc, potash... The potential for nitrate leaching is high the Texas high Plains necessary for strong stalks, but is a occurring... Nutrient most often limiting in sorghum production, with pH of 6.5 optimum! Should strive to keep the nitrogen fertilizer recommendation for sorghum rates accordingly to iron severity! Manure applications, if available, are a good Source for many nutrients the! Most limiting nutrient to yield is nitrogen, which improves nitrogen use efficiency deteriorates this. Adjust fertilizer rates accordingly Kansas for sorghum production, with pH of to... Lb/Ac, carryover nitrogen is 40 lb/ac from soil test recommendations to determine nutrient needs fertilizer... Be used for strong stalks, but a maximum of 10 pounds N/acre may be limited or ammonium thiosulfate direct. Ph decreases, eventually becoming toxic to crop growth are designed to provide nutrients to plants 6200 lb/ac, nitrogen! Will decrease when it lacks essential nutrients XLS ) soil test pH drops below,. Maximize standability figure 1: phosphorus deficiency shown by purpling is often overlooked but... Soils with reducedrooting depths and on sandy soils measure nutrient availability occurs within a pH range 5.5-7.5.
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