SICHUAN UNIWELL BIOTECHNOLOGY CO.,LTD. , https://www.uniwellbio.com
First, fertilization principles:
During the whole growth period of maize, the absorption of pure n2.57kg, p2o50.86kg, and k2o2.14kg is required for each 100kg of grain formed, and the absorption ratio of nitrogen, phosphorus and potassium is 3:1:2.5.
According to the city's soil monitoring situation in recent years, the city has a high soil organic matter content and a strong soil-holding and water-holding capacity. The potential for maize production is almost 500 kg or more. To achieve the target production of 500-600 kg, organic fertilizer is applied per acre. 2000-3000 kg of fertilizer, 35-45 kg of urea, 40-50 kg of superphosphate, 15-25 kg of potassium chloride, 2-3 kg of zinc sulfate, and 1-2 kg of borax.
Second, fertilization method:
Organic fertilizers, phosphorus and potassium fertilizers, and zinc and boron fertilizers should be applied at one time or at the seedling stage. Nitrogen fertilizers should be applied at a rate of 30-40% for seedlings (including seed and seedling) and 60-70% for panicles (55-60% for leaf age, ie 11-12 leaflets). Individual high-yield fields can quickly extract 20% of nitrogen fertilizer from panicle fertilizer and then apply the attacking grain fertilizer after tasseling.
If corn is used as a base fertilizer, if a certain nutrient is insufficient, use simple fertilizer to supplement it.
Corn is sensitive to potassium and zinc fertilizers. According to surveys, most of the grain fields in our city lack potassium and zinc deficiency. Therefore, we should pay attention to increasing potassium fertilizer and zinc fertilizer. Conditional, it is best to carry out balanced soil fertility formula.
Third, note:
When applying fertilizer, it must be planted and separated by fertilizer to prevent burning.
Intercropping Maize Fertilization Technology
Maize is one of the major food crops. The level of its output plays a decisive role in the city's harvest of grain harvest. The quality of fertilizer and water operations has a great impact on corn production. Therefore, in order to obtain high quality and high yield, corn must be satisfied by rational fertilization.