Following the attack of granular fertilizer to maintain the function of the blade is always strong, prevent premature aging, timely recovery of nitrogen fertilizer, potassium dihydrogen phosphate or urea can also be used for foliar fertilizer, in order to maintain and extend the function of the leaves above the middle and lower and ear positions At the same time, more compounds were produced, which promoted grain formation and made the grain fuller and increased in grain weight; spraying 1.5 kg of dihydrogen phosphate on leaves and 100 kg of water per acre.
Pouring water from the ear of corn to milk during the milk ripening period requires more water. If drought occurs during this period, it should be promptly irrigated to increase the seed setting rate, promote water flow, and increase grain filling.
Intercalation and timely emasculation can increase ear length and ear weight, increase the rate of double ear, relatively shorten the plants, improve ventilation and light transmission in the field, increase photosynthetic productivity, and increase yield.
Pest Control 1. Corn borers: Spray with 2000-4000 times of 10% imidacloprid wettable powder or 2000-2500 times of 3% acetamiprid EC. 2. Corn mash: Use 2.8% avermectin EC 20 to 40 ml or 20% phoxim EC 200 to 250 ml to spray 40 to 50 kg of water. 3. Maize size spot: spraying with 70% thiophanate-methyl 1000-fold, or 75% chlorothalonil powder 1,000-fold spray. 4. Corn rust: Apply 20% triadimefone EC 75 to 100 ml or 12.5% ​​diniconazole wettable powder 60 to 70 grams per mu, spray 30 to 40 kg of water.
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