How to fertilize winter rape

Most of the late cultivating and weeding plants were transplanted in the rain gap. Because of severe soil compaction, the cultivator should be cultivated in time to loosen the soil, eliminate the earth, promote root growth, transplant rapeseed to eliminate field weeds, and dig the surface soil. The soil clods break. When the oilseeds turn green, they should be deep in the cultivator, loosen the soil, remove the soil, and clean up the ditch in combination with the cultivator, so that the ditch, gutter, gutter, and ditch can communicate with each other. Drainage is smooth and the field is not stained with water to increase the temperature.

The Qiao Shimiao seedling fertilizer should be timely applied to raise seedlings after transplanting. As soon as possible, the better, generally with 3-5 tons of urea per mu, 5 kg of potassium chloride, 300 ~ 500 grams of boron fertilizer, 750 ~ 1000 kg of thin man and animal waste water, topdressing 1 ~ 2 times, or carbon per acre Ammonium 45 ~ 50 kg, apply to promote the return of green as soon as possible, make full use of the higher temperature after the weather is fine, and promote the long-rooted long-leaved rape.

Re-apply wax-fertilizer to organic fertilizer-based, medium-fertilizer plots, apply 1,000-1,500 kilograms of beef cattle per acre, 10-12 kilograms of superphosphate, and 5-7. 5 kilograms of ammonium bicarbonate. Mix three types of fertilizer. Together, they can be used in rapeseed rows and combine with cultivators to cultivate and warm their roots, protect roots and increase fertilizer.

Foliar spraying phosphate fertilizer foliar spray phosphorus fertilizer can enhance its cold resistance, how to grow rapeseed in order to produce high-yield phosphate fertilizer specific method is to take 2 kg of finely ground phosphate fertilizer per acre, into the container and add appropriate amount of water immersion, One week later, 200 grams of urea was sprayed onto the leaves to start dripping. If the container is small and the formulated phosphate fertilizer liquid is not enough, a small amount of fresh water may be added to supply the maximum amount of leaf suction for reducing the evaporation amount of the solution. The spraying should be performed in the absence of strong wind in sunny afternoons, with an interval of one to two weeks. According to practical observation, on the third day after the liquid was sprayed, some of the leaves that had been frozen to yellow turned green and the growth rate accelerated rapidly. After the second spray at intervals, the leaves had increased from the original four to five. Eighty-nine pieces, and green leaves, strong leaves and stems, thick and straight leaves stretch.

Control of late planting of late rapeseed due to weak nutrition before winter, easy to produce early pods and early flowers, can be controlled according to the situation. The first is the use of deep-medium cultivators for well-grown and fertile fields. The second is that the poorly growing rapeseed fields can be replanted with nitrogen fertilizers, which can effectively delay the growth of vegetative growth, increase the amount of growth, and prevent the occurrence of early pods and early flowering.

Spring fat and strong seedlings are good for spring rape and strong seedlings for late planting rapeseed, which is an important measure to solve the problem of late planting of rapeseed to seize high yield. Generally, after the beginning of spring, 8~10 kg of urea is applied per acre, and then 5~7 kg are recovered during the convulsions period, and efforts are made to erect a high yield seedling. Rely on re-applying spring fertilizers to raise the seedlings and achieve high yields. The occurrence of downy mildew in late spring rape can be strictly prevented. In the flowering stage, it is possible to use pesticides such as chlorfenone and chlorpyrifos for prevention and treatment.

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