3 Field Management 3.1 seedlings, Dingmiao Timely soaking seedlings and transplanting seedlings in two ways to make up the seedlings. When 3 to 4 leaves are used for thinning, 5 to 6 leaves are to be seedlings. Summer seedlings of maize in the high temperature season, the seedlings grow fast, but also can not take the seedlings and take a seedling. Miaomiao and Dingmiao should be carried out in the sunny afternoon to remove weak seedlings and diseased seedlings, and to keep the seedlings at a suitable distance and uniform in size. 3.2 Fertilizer Water Management When 5 to 6 leaves, fertilizer is applied during the seedling stage. The top-dressing amount is: 30% to 40% of the total amount of nitrogen fertilizer. Since robberies are broadcasted or interplanted without applying basal fertilizer before sowing, all phosphorus, potash fertilizer and zinc fertilizer should be applied together, and pest control can also be combined. Spray zinc fertilizer. The top dressing method is: 10 to 12 cm deep from the side of the seedlings 10 to 12 cm deep. Cover soil after fertilization and watering in time when the soil moisture is poor. During the big bell-mouth stage (usually 12 to 13 leaves) of corn, all the remaining nitrogen fertilizer is applied, that is, 50% to 60% of the total nitrogen amount. Ditching is 15~20cm away from the plant, and the depth is 10~12cm. Covered by strict. Maize tasseling until the wax ripening period, especially tasseling and flowering, requires more water, so during flowering and inseminating, it is necessary to strengthen irrigation during drought, improve the microclimate within the group, increase the vitality of pollen and filaments, and significantly increase the yield. Before jointing to tassels, they should be filled with drought and flooded. However, when corn is near mature, it should not be watered again. 3.3 Rows of loose soil After the jointing stage, cultivating tillage is usually conducted twice. The first time is carried out at the beginning of jointing. The cultivating depth is preferably 10-12 cm. The second time is carried out at the small bellmouth stage. The cultivator should be close to the plant and should be shallow. Should be deep. 3.4 Controlling pests and diseases During the period from the small bell mouth to the big bell mouth, it is during the time when corn pods are prone to develop. This can be controlled by inoculating the Trichogramma egg block to control corn borer or diluting it 500 times with BT emulsion. Aphids can be sprayed with 3% acetamiprid EC l000 to 1500 times or 10% 11% WP wettable powder 1500 times. Generally no longer sprayed within 20 days before harvesting. 4 timely harvest Appropriate late harvest of regular corn is an important measure for increasing production. The standard of harvest is the disappearance of the grain milk line and the formation of a black layer at the base of the grain. Prevent harvesting when ripening occurs and affect yield. 110-150Nm³/h Oxygen Generator 110-150Nm³/H Oxygen Generator,Large Oxygen Generator,Medical Large Oxygen Generator,Professional Oxygen Generator Jiangsu Minnuo Group Co.,Ltd , https://www.mngroupcn.com