One, check seedlings make up seedlings, prevent seedlings off
In order to ensure the whole seedlings, seedlings should be timely checked and supplemented with seedlings with early maturing varieties or seedlings transplanted in the afternoon or on cloudy days before replenishing seedlings or 4-5 leaves of seedlings. When 3-4 leaves and time seedlings of maize, 5-6 leaves are seedlings, weak seedlings, young seedlings, diseased seedlings and round stalk seedlings are removed, and the same size and healthy seedlings are selected.
Second, timely cultivator, to prevent grassland
Seedling stage should be cultivating weeding 2-3 times, Dingmiao before, the cultivator should be shallow, deep 5 cm is appropriate. Before the jointing, cultivating the grass 1 or 2 times, promoting the deep rooting of secondary roots, the depth of 10 cm, between the rows deep, seedlings shallow. Advocate chemical weeding, use 100-120 milliliters per 1/15 hectares with corn treasure or Yihe mixture, and mix with 50 kg of water and evenly spray.
Third, check pest control, pest damage prevention
Timely removal of weeds in the fields, grasslands and fields, elimination of locusts and fly locusts. Corn Thrips damages the heart and leaves of corn in mid-to late June, distorting the heart, causing silvery-white streaks on the victim's leaves, and severe yellowing of the dead leaves. Control methods: 40% omethoate 25-30 ml, water 30-50 kg, or 50% phoxim EC 100 times spray.
Fourth, chase eccentric fertilizer to prevent bullying
Weak seedlings should take measures as soon as possible, single plant management, promote weak and strong, so that it quickly catch up with the general plant height, to prevent late due to severe canopy closure, resulting in empty stalk or ear small, bald and lack of grain. The commonly used method is to use eccentric fertilizer, and apply 5-10 kg of nitrogen fertilizer every 1/15 hectares. The hole is applied near the plant and the soil is loosened immediately after topdressing.
V. Combination of irrigation and drainage to prevent internal hemorrhoids
Maize seedlings are markedly drought-tolerant, and they do not need watering as long as they are not severely drought. There are more rainstorms and intensive rains during maize seedlings. The rain should be drained in time after rain to prevent heat damage to the stems and leaves and roots, resulting in dead seedlings, especially for plots with poor quality and quality, and timely drainage and timely cultivating. , Sanhe ventilation, to prevent internal hemorrhoids.
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