How to plant new hybrid corn varieties
The new hybrid corn has the characteristics of high yield, large potential for yield increase, wide adaptability, low production cost, etc. Moreover, there are many varieties of maize, which can adapt to various ecological environments and cultivation conditions, and the planting methods are also varied. I. Selected varieties According to different ecological conditions, new hybrid corn varieties with good yield, stable yield, disease resistance and resistance can be selected. Under normal circumstances, Longyuan 201 control, Great Wall 706, Yuyu 32 can be selected. No. and other special varieties. Second, timely sowing (1) temperature: soil temperature is stable above 10 ~ 12 °C sowing, low soil temperature seed germination slow, weak growth, irregular, lack of seedlings serious. Delayed sowing, rapid growth and development, short vegetative growth, and unfavorable high yields. The sowing of spring corn should not be delayed as soon as possible, and it is usually appropriate in the middle or late March. (2) Seeding methods: There are several methods, such as spreading, nesting, and mulching. Third, the size of a reasonable dense planting density can be determined based on species, soil fertility conditions, and cultivation systems. Generally large ear type, late-maturing varieties generally plant 2800 ~ 3000 acres. Early-maturing varieties of planting more than 4500 plants. Fourth, to strengthen field management (1) seedling management: to promote root development, control aboveground growth, nurturing strong seedlings, Miao whole, Miao Qi, Miao Zhuang. Can be used to break the ground to prevent drought, to help seedlings unearthed, seedlings fill shortages, thinning, Dingmiao, cultivator weeding, top-dressing watering, control of tigers, earthworms, earthworms, corn borer, armyworm and other pests. (2) Fertilization management: According to different geographical conditions and irrational fertilization status, fertilizer input can be taken to increase the amount of fertilizer, promote balanced fertilization of nitrogen, phosphorus, potassium, and zinc fertilizers to re-use base fertilizer (farmer's manure) as Mainly, the hybrid corn can grow and develop under good nutritional conditions from the seedlings to the late stage. The amount of fertilizer should account for 60% of the total amount of fertilizer, 1500 kg of organic fertilizer used for mu, 10 kg of urea, and 30 kg of superphosphate. Potassium chloride 15 kg (complex fertilizer 50 kg), adding 1 kg of zinc fertilizer. In the dry application and diligence, the amount of fertilizer should account for 20% of the total amount of fertilizer. (3) Heading date management: This period will coordinate the supply of fertilizers and water, reach the stem and promote the panicle, the plants are robust, the roots are well developed, the leaves are dark green, and the leaves are vigorous and vigorous. Can be used to apply joint fat. If the seedling stage lacks fertilizer, the spring maize with poor growth potential may not apply jointing fertilizer, and in the big bell-mouth stage, the panicle fertilizer is concentrated, that is, the panicle spike and the panicle clover are attacked, and the basal internodes are prevented from growing too long and lodging occurs. Topdressing combines cultivating soil with cultivators to deeply bury fertilizers and reduce nutrient losses. 5. Timely harvesting of corn kernels to the wax ripening stage, the seeds become hard, the stems and leaves turn yellow, the temporal lobes dry, and can be harvested. Premature harvest affects the fullness of grain; harvesting is too late, the stem breaks, the ear touches the ground, it is easy to mold, germinate, damage to birds and animals, and affects the yield. It is advisable to harvest in a timely manner. Traditional Wound Care Products Traditional Wound Care Products,Disposible Gauze Swabs,Disposible Bandages,100% Cotton Bandages Zhende Medical Co.,Ltd , https://www.zdmedicalproduct.com