Ratio of base fertilizer to wheat

Wheat is one of the most important crops in our country, and it is planted more in the north, but if we want to have a high yield of wheat, we should not only do well in various management techniques, but also apply good fertilizer. What is the proportion of wheat base fertilizer?

1. What is the ratio of wheat base fertilizer?

Wheat base fertilizer is generally urea, potassium chloride, diammonium phosphate, each amount is about 15 kilograms, specifically according to soil fertility and plant growth. If the land with high fertility can be appropriately reduced, and the land with low fertility will be increased, pay attention to the use of regular fertilizer brands.

Second, how to fertilize wheat?

Normal growth and development of wheat requires many elements such as nitrogen, phosphorus, potassium, iron, zinc, copper, manganese and so on. Among the three elements of nitrogen, phosphorus and potassium, relatively more nitrogen and potassium and less phosphorus are needed. According to the research data, every 100 kg grain of wheat needs to absorb 2.8 kg of pure nitrogen, 1 kg of phosphorus pentoxide and 2.4 kg of potassium oxide. the fertilizer requirement increases with the increase of yield level. In general, the whole growth period of wheat field needs to apply 12-15 kg of pure nitrogen, 6-8 kg of phosphorus pentoxide, 5-6 kg of potassium fertilizer (potassium oxide), zinc, boron, manganese and other elements according to the supply of soil nutrients. In the use by stages, we should follow the principle of "re-applying base fertilizer and skillfully applying topdressing" and adjust it reasonably.

1. Base fertilizer

"Mai Xi is rich in the womb, and the base fertilizer is the foundation." Before soil preparation, 1-1.5 tons of farm manure is applied per mu, while 30-50% of nitrogen fertilizer, all phosphate fertilizer and 20% potash fertilizer are applied on the basis. It is suggested to apply 3 kg zinc fertilizer and 2 kg boron fertilizer. It is suggested that it is best to spread it evenly on the surface in front of the cultivated land and turn it into the soil in time.

2. Topdressing

Topdressing is generally carried out at the jointing stage, mainly nitrogen fertilizer. The amount of nitrogen fertilizer topdressing accounts for 50-70% of the total amount. Wheat has many tillers, good seedling condition and exuberant growth, which can be applied late appropriately and reduce the amount of application. Topdressing twice at booting stage. If the basal application of phosphorus and potassium fertilizer is insufficient, it should also be supplemented by topdressing, but the topdressing of phosphorus and potassium fertilizer should be advanced to the tillering stage as far as possible, and it is best to choose compound fertilizer. After topdressing, it should be watered in time, the amount of water is about 40m3, and do not flood.

Foliar fertilizer spraying is also a form of topdressing. When the root absorption capacity is poor in the later stage, foliar topdressing is more direct and effective, and can effectively prevent the harm of dry and hot wind. Foliar fertilizer spraying varieties are mainly urea, potassium dihydrogen phosphate, micro-fertilizer, etc., the concentration is between 0.5-2%. Spraying is usually carried out before 10:00, after 5pm or on cloudy days, and should be re-sprayed after spraying rain.