Overwinter crops have good waxy fertilizer and severe cold

The application of wax fertilizer, mainly rotten and mature manure, to the overwinter crops can increase the ground temperature, reduce the damage to the roots of the overwinter crops, and promote the growth and development of spring harvest crops.

Look at fertilization. Generally, the land with good fertility and sufficient base fertilizer can be applied with or without wax fertilizer; for the land with poor soil fertility and low or no base fertilizer, additional phosphorus and potassium fertilizers should be applied; Apply organic fertilizers, avoid excessive fertilizer application, to prevent crops from growing wild after spring and causing late lodging; sandy soils should be applied in small amounts and multiple times to prevent fertilizer leaching loss.

Watch crop growth. The application of wax fertilizer cannot be "one size fits all", it depends on the growth of winter crops and leaf color topdressing. The leaf green and black seedlings do not apply wax fertilizer; the green leafy strong seedlings do not apply wax fertilizer; the leaf color is yellow and green. Applying late fertilizers; especially the three types of seedlings that are late sowing and delayed, we must apply both slow-acting fertilizers and quick-acting fertilizers to promote the conversion of weak seedlings into strong seedlings and strive to balance and increase yield.

Look at the type of crop. The application of wax fertilizer must vary from crop to crop. Rapeseed is mixed with manure and phosphate fertilizer, and 1500-2000 kg per mu is applied after maturity. Strips are applied between rape rows, combined with soil protection, and it is best to apply from late December to early January of the following year. Among them, the early-maturing varieties should be applied earlier than the late-maturing varieties due to early spring. The application of wheat wax fertilizer is basically the same as that of rapeseed. It is advisable to apply it in the middle and late December. The amount of application depends on the seedlings. Early wheat and strong wheat should be applied with coarse soil fertilizers, while late wheat and weak wheat should be mixed with soil The fertilizer is mixed with quick-acting phosphate fertilizer. Generally, 2500 to 3000 kg of soil fertilizer is applied or spread per acre.

Look at the weather to fertilize. When the temperature is low, apply delayed-acting decomposed manure, compost, pond mud, grey manure, or human or animal dung; when the temperature is high, apply chemical fertilizers such as ammonium carbonate, urea, and ammonium chloride that are easy to decompose. For crops, fertilizing with ammonium is a good choice. Generally, rapeseed and wheat are applied 25 to 30 kg per mu, and vegetables and other winter crops are applied 20 to 25 kg per mu. Match fertilizer according to crop type and seedling situation. Lean and weak seedlings are mainly human faeces and nitrogen fertilizers to promote thick seedlings; strong seedlings are mainly pond mud and soil miscellaneous fertilizers. If cake fertilizer is applied, 40 to 50 kilograms are applied per mu.

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