1. Ditch System Support: Clean up the ditch system immediately after transplanting, so that the rain and water can be discharged, and the drought can be filled to ensure the smooth flow of the three channels.
2. Management of small ring shed cultivation methods: timely adjust the temperature inside the shed. Rainy days should be kept in the shed, and ventilation can be carried out for 1 hour at noon. On sunny days, the leewards can be peeled off at 12 o'clock in the afternoon to 15 o'clock in the morning to prevent the greenhouse temperature from being too high and causing the corn seedlings to grow. In late April, when the plant height is 60cm, the small ring shelter should be removed.
3, topdressing joint fertilizer: after jointing of waxy corn (6 leaves ~ 7 leaves) growth into the first peak, according to fertility, fertility foundation and seedling growth, skillfully applied jointing long thick fat, generally urea per acre 7kg - 8kg.
4. Drought resistance: After the jointing of corn, it enters the growth peak, especially before and after tasselling. If there is drought, measures must be taken to provide timely drought resistance by using furrow irrigation when the temperature difference is small at night and drain water in the fields before sunrise.
5. Heavy panicle fertilizer: Corn enters the booting stage and is a period of vegetative growth and reproductive growth. Fertilizer is the key factor in determining the size of the ear and the number of grains per panicle. At this time, it is particularly sensitive to the application of panicle fertilizer, generally visible in the leaf 12 When ~13 tablets (commonly known as the big bell mouth period), apply 15kg to 20kg of urea per 666.7m2 to ensure the corn's demand for nutrients, reduce the degradation of spikelets, and prevent baldness from occurring.
6. Castration: Castration is an important means to reduce plant nutrient consumption and improve ventilation and light conditions in the field. The proportion of detaches depends on the weather conditions and the growing conditions. In sunny weather, good growing conditions, and consistent growing fields, you can adopt the method of intervening emasculation, and you can remove the tassels when they have just drawn out the leaves. On the contrary, less or no.
7. Stripping excess ears: Waxy corn is a multi-spike variety, that is, more than one ear, generally only the top one ear. When the ear is spun silk one week later, the lower ear should be stripped in time to achieve a single ear per plant. Pay attention to protect the ear blades during operation.
8. Timely harvesting: Correctly grasping the appropriate harvesting period can guarantee the fresh ear quality and achieve better results. The harvest time of different species is different. The main factors affecting the harvesting period are accumulated temperature and maturity. The harvesting period of fresh spikes is generally at the early stage of milk ripening. The harvesting period can be estimated based on the day of pollination and pollination. Waxy corn is suitable for harvesting from 22 days to 24 days after pollination, which has good flavor and good palatability. In case of high temperature and drought, the maturity will be earlier, and attention should be paid to observation and timely listing and harvesting so as not to affect the quality.