What fertilizer is good for sesame topdressing?

Sesame topdressing time

During the period of flower bud differentiation, sesame requires more fertilizer, so at this time, vegetative growth and reproductive growth proceed simultaneously, and topdressing is most effective.

What fertilizer to use for sesame topdressing

Sesame prefers fertilizers with high nitrogen content, so topdressing should be mainly nitrogen fertilizer, supplemented by phosphorus and potassium fertilizers. Boron fertilizer should be applied in areas where the soil lacks boron.

Generally, sesame should use compound fertilizers with high phosphorus content, tuberous and rhizome crops should use compound fertilizers with high potassium content, peanuts, sesame, rapeseed, peppers, etc. should use compound fertilizers with high phosphorus content, and leafy vegetables should use compound fertilizers with high nitrogen content.

Sesame topdressing method

During the flowering period of sesame, that is, from the beginning of flowering to the peak flowering period, foliar fertilizer is needed. Choose an afternoon with good weather and spray diluted potassium dihydrogen phosphate on the leaves. Spray three times in a row, with an interval of 5 to 6 days between each time. If it rains after spraying, spray again.

Principles of sesame topdressing

According to the rules of topdressing sesame, the following principles should be followed for topdressing: base fertilizer should be mainly organic fertilizer, combined with an appropriate amount of potassium fertilizer. Since the root system of sesame is shallow, sufficient base fertilizer should be applied. Phosphorus and potassium fertilizers should also be applied in topdressing, and foliar fertilizer should be applied after flowering.

Precautions for sesame topdressing

1. Seedling stage: When fertilizing sesame, you must control the application of nitrogen fertilizer, otherwise it will cause excessive growth. Therefore, a small amount of nitrogen fertilizer can be used as base fertilizer in the sesame seedling stage. When the growth is not good, you can first apply a small amount of seedling fertilizer. You can use diluted and decomposed human manure.

2. Bud stage: Sesame is in the period of flower bud differentiation, and the demand for fertilizer is very large. At this time, topdressing is more effective. Topdressing should be mainly nitrogen fertilizer, with appropriate amounts of phosphorus and potassium fertilizers. Boron fertilizer should be applied in areas deficient in boron.

3. Flowering period: During the flowering period of sesame, the number of fertilizations can be increased, and flower fertilizers must be applied heavily to increase the yield. At this time, lateral roots have begun to form in large numbers, the absorption capacity is enhanced, and the demand for nutrients has also increased significantly. Chemical fertilizers are mainly used, and decomposed cake fertilizers, manure, and stable manure can also be applied.