Corn is a high-yield crop, which requires a large amount of fertilizer. Scientific fertilization is the key to obtaining high yield and stable yield of corn. According to the law of corn fertilizer demand, determine the reasonable fertilization method, and determine the appropriate proportion of fertilizer, in order to achieve high quality and high yield of corn, and obtain the maximum economic benefits.
Applying the base fertilizer and seed fertilizer The summer fertilizer should be applied to the base fertilizer, mainly organic fertilizer. The straw can be directly returned to the field before the wheat is used. However, the appropriate amount of nitrogen fertilizer should be applied to adjust the carbon to nitrogen ratio to accelerate the straw maturity. The seed fertilizer is mainly available nitrogen, phosphorus and potassium fertilizers, such as diammonium phosphate (5-10 kg per mu) and potassium sulfate composite fertilizer (45 to 5 kg per mu).
Topdressing is very important. Topdressing plays a pivotal role in corn growth. Topdressing is mainly based on available nitrogen, and phosphorus and potassium fertilizers are added according to different growth stages of corn. Usually divided into three times top dressing, namely seedling fertilizer, jointing fertilizer, and ear fertilizer. The seedling fertilizer should be applied early, accounting for about 10% of the total topdressing fertilizer. The jointing fertilizer accounts for about 60% of the total topdressing fertilizer, and the ear fertilizer accounts for about 30%. In addition, summer maize has more demand for nitrogen, phosphorus and potassium at jointing and booting stage. Therefore, phosphorus and potassium fertilizer should be applied according to specific conditions.
Using foliar fertilizer to spray 0.2%-0.3% potassium dihydrogen phosphate 2~3 times in the jointing stage of corn, the yield of corn can be increased by more than 10%, and 0.1%-0.3% zinc sulfate is sprayed at the seedling stage and jointing stage. An aqueous solution can prevent the occurrence of corn white mosaic disease.
Careful application of special fertilizers Nowadays, there are many kinds of special fertilizers in various names in the agricultural resources market. There are many fake and inferior products, so be careful when purchasing fertilizers and fertilizers, and choose fertilizers according to corn growth characteristics and soil nutrient content.
Applying the base fertilizer and seed fertilizer The summer fertilizer should be applied to the base fertilizer, mainly organic fertilizer. The straw can be directly returned to the field before the wheat is used. However, the appropriate amount of nitrogen fertilizer should be applied to adjust the carbon to nitrogen ratio to accelerate the straw maturity. The seed fertilizer is mainly available nitrogen, phosphorus and potassium fertilizers, such as diammonium phosphate (5-10 kg per mu) and potassium sulfate composite fertilizer (45 to 5 kg per mu).
Topdressing is very important. Topdressing plays a pivotal role in corn growth. Topdressing is mainly based on available nitrogen, and phosphorus and potassium fertilizers are added according to different growth stages of corn. Usually divided into three times top dressing, namely seedling fertilizer, jointing fertilizer, and ear fertilizer. The seedling fertilizer should be applied early, accounting for about 10% of the total topdressing fertilizer. The jointing fertilizer accounts for about 60% of the total topdressing fertilizer, and the ear fertilizer accounts for about 30%. In addition, summer maize has more demand for nitrogen, phosphorus and potassium at jointing and booting stage. Therefore, phosphorus and potassium fertilizer should be applied according to specific conditions.
Using foliar fertilizer to spray 0.2%-0.3% potassium dihydrogen phosphate 2~3 times in the jointing stage of corn, the yield of corn can be increased by more than 10%, and 0.1%-0.3% zinc sulfate is sprayed at the seedling stage and jointing stage. An aqueous solution can prevent the occurrence of corn white mosaic disease.
Careful application of special fertilizers Nowadays, there are many kinds of special fertilizers in various names in the agricultural resources market. There are many fake and inferior products, so be careful when purchasing fertilizers and fertilizers, and choose fertilizers according to corn growth characteristics and soil nutrient content.
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