Fertilization technology of rape

Hello! There is an old saying in rural areas, which discusses the fertilization of rapeseed during pod-setting period. Rape is planted in our hometown, and the farming technology has not made great progress, and the yield per mu is not high, and there are very few more than 300 kilograms. This has a lot to do with rape fertilization technology. The farming mode in my hometown is shelling and fertilization, so the yield has not been able to go up.

In fact, rape is an oil crop with infinite inflorescence, which blooms and pods at the same time. During the whole growth and development of rape, with the cooperation of soil and water conditions and varieties, the yield can reach more than 400 kg. As the saying goes: "Water wheat and buds, water vegetables and flowers" is feasible to manage water and fertilizer during the flowering and pod-bearing period of rape, and it can also increase production continuously.

Rape varieties planted by hometown people are prone to lodging, and the branches are staggered at pod-setting stage, so it is really difficult to fertilize, so there is a wrong cognition that rape does not fertilize at pod-setting stage. No matter whether it is easy to lodging or erect rape varieties, quick-acting fertilizer is needed for fertilization at pod-setting stage, which can meet the transportation and accumulation of nutrients in rapeseed grains in a short time, so it is necessary to adapt to foliar spraying of nutrient fertilizer. This method of topdressing, whether irrigated with water or buried, is unrealistic.

What nutrients are needed in rapeseed pod-setting period? Two aspects must be considered. First of all, in view of the fact that rape is an infinite inflorescence, it bears pods when it blooms, and nutrient fertilizers such as potassium dihydrogen phosphate, borax or urea are used to avoid flowering without bearing fruit or flowering. It is suggested that foliar spraying 0.2% potassium dihydrogen phosphate can also be combined with 0. 1% urea. The spraying formula of foliar fertilizer in the early flowering and pod stage is 0.2% potassium dihydrogen phosphate +0. 1% urea water +0.02% borax water. Spraying time should be avoided at noon, and should be sprayed in the early morning and late at night.

As for the middle and late stage of rapeseed pod setting, there is a great demand for phosphate fertilizer. Therefore, 0.2% potassium dihydrogen phosphate solution can be sprayed, which is beneficial to the quality and yield of rapeseed. My hometown's lack of understanding of fertilizer and water management at the pod-setting stage of rapeseed is also a factor that feels that rapeseed is not productive. At present, the current situation in my hometown is that rape is rarely planted again, and peanuts and other oil crops are planted instead. Peanut production is indeed high, and the oil yield is also high, but there is still no rapeseed oil to feed people.