Summer corn fertilization skills

Maize is a high-yielding crop and requires a large amount of fertilizer. Scientific fertilization is the key to obtaining high and stable yield of corn. According to the law of demand of maize, it is necessary to determine a reasonable method of fertilization and determine the proportion of suitable fertilizer to achieve high-quality and high-yield corn, and achieve maximum economic benefits.

Before applying the basal fertilizer and seed fertilizer summer corn, the basal fertilizer should be applied, mainly organic fertilizer, and the former buckwheat wheat can also be used to directly return the straw to the field. However, appropriate amount of nitrogen fertilizer should be used to adjust the ratio of carbon to nitrogen to accelerate the decomposition of the straw. Fertilizer is mainly available nitrogen, phosphorus, potassium fertilizers, such as diammonium phosphate (Mushi 5 to 10 kg), potassium sulfate compound fertilizer (45% Mushi 10 to 15 kg) and so on.

The top-dressing fertilizer is a very important top-dressing fertilizer that plays a decisive role in the growth of corn. Top-dressing fertilizers are mainly available nitrogen, and phosphorus and potassium fertilizers are used according to different growth stages of corn. Usually three times top dressing, namely Miao Fei, jointing fertilizer, panicle fertilizer. Miao Fei should be applied early, accounting for about 10% of the total fertilizer, jointing fertilizer accounted for about 60% of the total fertilizer, panicle fertilizer accounted for about 30%. In addition, during the jointing and booting stages of summer maize, the demand for nitrogen, phosphorus, and potassium are relatively high. Therefore, phosphorus and potassium fertilizer should be applied according to specific conditions.

Clever use of foliar fertilizer in the corn jointing spraying 0.2% ~ 0.3% of potassium dihydrogen phosphate 2 ~ 3 times, can increase corn production by more than 10%, in the seedling and jointing stage spray 0.1% ~ 0.3% of zinc sulfate Aqueous solution can prevent corn white mosaic disease.

Careful Application of Special Fertilizers Special fertilizers of various names in the agricultural capital market are emerging in an endless stream. There are no lack of shoddy products. Therefore, care must be taken when purchasing fertilizers and fertilizers. Fertilizers should be selected based on the growth characteristics of maize and soil nutrient content. (Xu Junheng)

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