Entering the ear stage marks the shift of vegetative growth (growth of roots, stems, leaves, etc.) to reproductive growth (flowering, fruiting). That is, the gradual progress of vegetative growth and reproductive growth. This is the most critical period in determining corn production. It is also the fastest growing period in corn, the most demanding period for nutrients, water, temperature and light. Therefore, it is a key period for irrigation and topdressing. Spraying Zhuangsuiling before corn heading can strengthen the physiological function of corn, improve the quality of pollination, fertilization and grouting, and increase the 1000-grain weight.
Management measures:
(1) Apply watering in time.
(2) Carry out deep cultivating, promote large-scale differentiation of roots, and expand the scope of nutrient absorption.
(3) Preventing lodging, removing small diseased plants for ventilation.
(4) Spraying Tianda 2116 (food-specific type) 600 times + 2% avermectin 3000 times + 98% carbendazim 3000 times + 1.8% bactericidal speed kill 1000 times, prevention and control of leaf spot disease, bacterial wilt and Stem-based rot and red spider. Effectively control vegetative growth and promote reproductive growth.
(5) At this time, it is in the flare period, and the phoxim granules should be used to prevent corn mash.
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