Summer maize corn filling period management suggestions

Summer corn in Yutian County, Hebei Province is currently in the grouting stage. In order to promote good grain filling of the corn and ensure that the seeds are full and full, the harvest is prosperous. Here are five suggestions:
1. Make full use of the sun light. The main goal of the filling period is to preserve the roots, protect the leaves, prevent premature aging of the leaves, and promote corn grain and grain weight to achieve high yields. Therefore, high temperature, drought, and even cloudy days are not conducive to the formation of grain yield during grain filling. Appropriate temperature, moisture content, and sufficient sunlight are beneficial to grouting.
2. Focus on water and fertilizer management. Due to the long grouting time of summer corn and the accumulation of dry matter, the amount of water and nutrients needed is also large. Should be based on the situation of fertility, as appropriate, top-dressing attacking granulation fertilizer (to be mainly available nitrogen fertilizer) to meet the needs of nutrients. At the same time to strengthen the water management, corn filling period of large water demand, more resistant to waterlogging; but if there is water accumulation in the field, but also timely drainage, to ensure the absorption of root activity, to prevent damage caused by reduced production.
3. Strengthen field management to prevent falling production. The lodging of corn in the middle and late stages is the main factor limiting the yield increase of corn. In the case of planting dense-resistant, lodging-resistant varieties, reasonable dense planting, reasonable fertilization, medium-tillage cultivation, timely removal of small and weak empty plants, etc., if excessively high-density plots are found with serious risk of lodging, plant growth regulation can be applied in advance. Agent.
4. Conduct cultivator cultivation. In the late stage of grouting, we should also cultivating once in shallow soil, ventilate the soil, ensure weeding, prevent weeding, and facilitate the decomposition of nutrients, promote root absorption, prevent premature aging of leaves, and increase grain weight.
5. Timely pest control. Corn corn borer, armyworm, cotton bollworm, aphids, and other hazards are common during corn filling, and care must be taken to prevent and control it.

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