How to fertilize summer sesame well? Detailed explanation of planting and fertilizing techniques
How to fertilize summer sesame well when planting? Please give an introduction to the fertilizing methods. To achieve high yields when planting summer sesame, fertilization must include heavy and shallow application of base fertilizer, a moderate amount of seed fertilizer, heavy application of flower bud fertilizer, and supplemental spraying of phosphorus and potassium fertilizers; mainly use organic fertilizer, combined with phosphorus and potassium fertilizers, and minimize the amount of chemical fertilizer to improve...
How to fertilize summer sesame well when planting? Please give an introduction to the fertilizing methodsTo achieve high yields when planting summer sesame, fertilization must include heavy and shallow application of base fertilizer, a moderate amount of seed fertilizer, heavy application of flower bud fertilizer, and supplemental spraying of phosphorus and potassium fertilizers; mainly use organic fertilizer, combined with phosphorus and potassium fertilizers, and minimize the amount of chemical fertilizer to improve sesame quality. For every 100 kg of sesame produced, the fertilizer requirement is: nitrogen fertilizer 6.24-8.13 kg, phosphorus fertilizer 2.19-3.28 kg, potassium fertilizer 6.24-10.19 kg.
However, in summer sesame cultivation, most farmers do not apply base fertilizer, and for topdressing they only apply urea or a small amount of compound fertilizer. Unreasonable fertilizer application seriously affects the realization of sesame's yield-increasing potential.
At present, summer sesame in various regions has entered the mid-growth stage, and fertilizer management in the middle and late stages must be carried out promptly to achieve increased yield and income.
Supplemental base fertilizer: For fields where no base fertilizer has been applied, topdressing should be carried out promptly to prevent nutrient deficiency. For high-yield fields, apply 10 kg of high-quality potassium sulfate compound fertilizer per mu, shallowly buried 4-6 cm deep; for medium- and low-yield fields, apply 10 kg of high-quality potassium sulfate compound fertilizer per mu, plus 5 kg of urea.
Heavy application of flower bud fertilizer: For fields where base fertilizer has already been applied, heavy application of flower bud fertilizer is needed. For single-stem sesame, apply flower bud fertilizer from budding to early flowering; for poor soil fertility or weak growth, it should be applied appropriately earlier; for branching sesame, topdressing when branches appear is preferable. Generally, apply 5-10 kg of urea per mu, plus 5 kg of high-quality potassium sulfate compound fertilizer, or apply 10-15 kg of high-quality potassium sulfate compound fertilizer per mu.
Supplemental spraying of phosphorus and potassium fertilizers: At the early flowering stage of summer sesame, use 50 kg of 0.3%-0.4% potassium dihydrogen phosphate solution per mu, spray evenly once every 5-6 days, for 2-3 consecutive sprays. At the same time, 50 kg of borax, ammonium molybdate solution, or zinc sulfate solution can also be sprayed at intervals per mu, which can increase yield by more than 10% per mu. Generally, the spraying concentration is 0.2% for borax, 0.05% for ammonium molybdate, and 0.2% for zinc sulfate.
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