Transplanting
Transplanting appropriate transplant period is suitable for the two-leaf one-heart period to the three-leaf one-heart period, at this time the corn root is thick and short, not easy to damage, grow good corn easy to survive. Aging seedlings tend to appear late in the transplanting period, and the survival rate is low.
The reasonable density of planting plants depends on the characteristics of the varieties, soil fertility, and climatic conditions. The wide and narrow rows were transplanted with a small row spacing of 50 centimeters, a large row spacing of 80 centimeters, a plant spacing of 24 centimeters, and about 3750 plants per acre.
Directional transplanting was carried out during directional transplanting. The first true leaves of corn were all outward and the leaves were perpendicular to the row direction. Pour a set of root water after transplanting.
Daejeon Management
The field management is dominated by fertilizer and water. According to the characteristics of corn at different growth stages, the techniques of early application of Miao Fei, medium tapping, and post-filling are the key measures to increase the yield of maize kernels.
Miaofei fertilizer is applied early after the seedlings are transplanted, 5-6 kg of urea is used, 1500 kg of manure water is applied, combined with cultivating loose soil and weeding.
Pan-fertilizer is a big bell-mouth period, heavy fertilizer material. Mu with urea 15 ~ 25 kg, conditional areas can be applied 1000 ~ 1500 kg of cooked barley or compound fertilizer 15 ~ 25 kg. Dig nests and deep-seeds between the maize plants and combine soils. The depth of application is about 10 centimeters of topsoil. The fertilization time is 11-12 leaves in full leaf.
Granule fertilizer in the silking stage: If the leaf color gradually fades, each mus can make up 5 kg of urea, nest plant roots, or with potassium dihydrogen phosphate 100 ~ 150 grams, plus urea 0.5 kg Duishui 25 kg.
Pest control
For large spot corn, use 50% carbendazim wettable powder 500 times, or 50% eutectic special wettablet 800 times, or 75% chlorothalonil wettable powder 500 to 800 times. Spray 1 or 2 times and spray once every 15 days.
Rhizoctonia with 5% Jinggangmycin 1000-1500 times or 25% saccaride net 800-1000 times, or 50% thiophanate-methyl, carbendazim, 800-1000 times, or 65% Wet zeocin zinc 500 times sprayed on the site of the disease 1 to 2 times.
Tigers use 5% phoxim 1000 times to prevent seedlings from spraying.
Corn borer at the end of the corn leaf stage uses 1.5% zincphos-phosphor granules and is placed directly inside the bell mouth.
At the seedling stage of maize, 5% of the plants exhibited dead seedlings and the beginning of the field hatching, using 90% trichlorfon or 50% killing pine or 25% insecticidal locust, or 50% badan emulsion and enemy killing 800~ 1000 times spray seedlings.
Mythimna separata and aphids were sprayed with 10% Dafenchen or imidacloprid wettable powder 1000 times.
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