There are many reasons for the occurrence of spikes and lack of grains in corn during production, which are closely related to the characteristics of corn varieties, climatic conditions, cultivation and management, and the severity of pests and diseases. The main measures to prevent the occurrence of maize tipping and lack of grain include: 1, use fine varieties. According to local conditions, varieties that are adapted to local climate characteristics and cultivation conditions, and are resistant to disease, insect resistance and adaptability are selected. 2, enhance the ability of soil to retain water and fertilizer. Promote the application of organic fertilizers and the application of deep plowing and cultivating techniques to improve the structure of the soil, promote the growth and development of corn, and increase the resistance of maize to the external environment. 3, to strengthen fertilizer and water management. Increase organic fertilizers, apply nitrogen, phosphorus, and potassium reasonably to prevent the lack of phosphate fertilizer and boron fertilizer in the field; prevent drought and flooding disasters; provide timely and appropriate water supply after jointing and during vigorous development of the reproductive organs to promote the development of male and female ear . 4, strengthen the cultivation and management. Suitable for dense planting, adopting large- and small-row planting techniques to improve the ventilation and light conditions in the field; strengthening the techniques of cultivating and weeding and earth-cultivation, especially after paddling, can increase the permeability of the soil and promote the development of maize roots; artificially-assisted pollination is used. , Improve corn seed setting rate. 5, timely control of pests and diseases. To prevent corn plants from premature aging and reduce the phenomenon of baldness and lack of grain, the key is to prevent and control pests and diseases. Several pest and disease problems that occur frequently in corn are targeted. For example, spraying pesticides such as enemy killing to control corn borer; treating smut with 50% formalin solution; using 50% zinc phos- phite EC 75-100g or 40% chlorpyrifos (Loss Ben) EC 75-100g Water 40kg evenly sprayed to kill the corn tapeworm. Roll Paper Towel,Kitchen Paper Towel,Cleaner Kitchen Tissue,Kitchen Dish Wash Towels YIWU CHUANGCHENG IMPORT&EXPORT CO.,LTD , https://www.tradingsix.com