Summer corn management skills
For any crop, scientific management is very important to achieve high yield, and for summer corn, to improve production, the following points are best done in peacetime.
First, the application of panicle fertilizer
The ear stage is the fastest period for corn to absorb nutrients, and it is also an important stage of medium fertilization in the corn growth stage. The application of nitrogen fertilizer during the big bell period can effectively promote the differentiation of the florets of the ears and achieve more spikes and larger grains. Generally, 20 to 25 kg of urea or nitrogen-potassium compound fertilizer can be applied per acre. The method of top dressing can be ditched on the side of the row or deep in the side of the plant. The timely application of Zhuangsuiling can increase the nutrient flow. It is best to combine it with irrigation and avoid spreading it on the soil surface to prevent fertilizer loss.
Second, timely control
When the corn is spread out of six to thirteen true leaves, it can be controlled, and the best results are obtained from eight to thirteen leaves. Before the 6-leaf stage of corn, the leaves of the corn were slender and the leaves were smooth. When the corn is unfolded in the 7-leaf stage, it will become thick and thick, and fine white fur will appear on the leaf surface. It can be felt with the back of the hand, and this is the best time to control the Wang. When spraying the control agent, it is necessary to choose the flower-free king No. 3, which can control the branches, and the assimilation induces the transmembrane signal conversion of the plant cells, forcing the toppings to vigorously return a large amount of nutrients, and the main nutrient of the main body turns to the young fruit development system. The fruit is inflated. Simple to use, green and environmentally friendly, no side effects.
Third, strengthen pest control
Pests and diseases in summer maize ear should focus on brown spot disease and corn borer. Brown spot disease can be controlled by bactericide + new high-fat film 600 times liquid foliar spray; corn mash can be controlled by spraying with insecticide + new high-fat film 600 times liquid at the big bell mouth.
Today, I am talking about the management skills of summer corn. I believe that it is no problem for growers to master scientific management and achieve corn income.
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