How to fertilize sesame for good results when planting it?
How should sesame be fertilized when planting? Please give guidance. For fertilizing sesame, you can refer to the following methods: Apply seedling fertilizer early. Because sesame seeds are relatively small, and because too much nitrogen fertilizer is often applied as a base fertilizer, the seedlings are prone to excessive vegetative growth and become leggy seedlings. Therefore, for sesame, in combination with early thinning and early final thinning of seedlings, apply a quick-acting fertilizer once early according to seedling condition. Applying seedling fertilizer well is an important measure for sesame to start growing early and grow vigorously. For seedling-stage fertilizer, diluted decomposed human manure or urea is preferable. Generally, after final thinning, apply 2-3 kg of urea per mu as a topdressing. When drought is severe, first relieve the drought and then apply the topdressing, or dilute it with thin human manure and pour it on. For those with weaker seedling vigor, the "special meal" method should also be used to apply a seedling-promoting fertilizer. When applying seedling fertilizer to sesame, also according to the characteristic that sesame has a relatively shallow root system, apply it as shallowly as possible or concentrate it near the roots.
How should sesame be fertilized when planting? Please give guidance
For fertilizing sesame, you can refer to the following methods:
Apply seedling fertilizer early. Because sesame seeds are relatively small, and because too much nitrogen fertilizer is often applied as a base fertilizer, the seedlings are prone to excessive vegetative growth and become leggy seedlings. Therefore, for sesame, in combination with early thinning and early final thinning of seedlings, apply a quick-acting fertilizer once early according to seedling condition. Applying seedling fertilizer well is an important measure for sesame to start growing early and grow vigorously. For seedling-stage fertilizer, diluted decomposed human manure or urea is preferable. Generally, after final thinning, apply 2-3 kg of urea per mu as a topdressing. When drought is severe, first relieve the drought and then apply the topdressing, or dilute it with thin human manure and pour it on. For those with weaker seedling vigor, the "special meal" method should also be used to apply a seedling-promoting fertilizer. When applying seedling fertilizer to sesame, also according to the characteristic that sesame has a relatively shallow root system, apply it as shallowly as possible or concentrate it near the roots.
Skillfully apply bud fertilizer. The budding stage of sesame is exactly when flower bud differentiation begins. At this time, the plant's vegetative growth and reproductive growth are both vigorous at the same time. Therefore, applying bud fertilizer well plays a decisive role in achieving high sesame yields. Bud-stage fertilizer is generally mainly nitrogen fertilizer, supplemented by phosphorus and potassium fertilizers. When applying, for drilled sowing, open a furrow about 10 cm from the sesame plants and apply in a band or in spots, placing it into a 10 cm deep soil layer to facilitate root absorption, then cover with soil after application; for broadcast sowing, mix decomposed cake fertilizer or granular urea thoroughly into finely crushed soil and broadcast it evenly, then immediately carry out intertillage and loosening of the soil to cover the fertilizer. In dry weather, after application, spray water to fully bring out the fertilizer effect. A drenching method can also be used, that is, use 4-6 kg of urea per mu mixed with 200 kg of water and splash it onto the base of the sesame plants. In addition, for boron-deficient areas and boron-deficient soils, boron fertilizer should also be added as appropriate.
Heavily apply flower fertilizer. Sesame grows fastest when it enters the flowering stage. Nutrients absorbed during this period account for 70%-80% of the entire growth period. In order to meet the needs of plant growth and development, make sesame grow vigorously, accumulate more photosynthetic products, increase the number of flowers and capsules, maintain stable growth in the later stage without premature aging, and make the seeds plump and full, flower fertilizer must be applied heavily. At the same time, during the flowering and podding stage, lateral roots have begun to form in large numbers, the absorption capacity of the root system is enhanced, the growth rate of the plant accelerates, and the demand for nutrients also increases significantly. Therefore, a flowering and podding fertilizer should be applied heavily once. Generally, use 5-8 kg of urea per mu mixed with 200 kg of water and splash it onto the base of the sesame plants. Retting cake fertilizer, human manure fertilizer, and the like can also be applied. In addition, from initial flowering to full flowering, foliar topdressing can be carried out by choosing a sunny afternoon and spraying a 0.3% potassium dihydrogen phosphate solution on both sides of the leaves, with an interval of 5-6 days each time, for 2-3 consecutive sprays.
Click to get more sesame cultivation techniques
Click to get more food crop cultivation techniques