Summer corn high yield catch three defenses

The characteristics of high-yield plants in the summer-earning stage of anti-fertilization and summer maize were: thick stalks, short internodes, broad and thick leaves, strong leaves, and strong green root system. If the leaves have a tendency to turn yellow at the ear stage, premature aging of the defertilizer should be prevented. In the management, we must chase stalk and granule fertilizers, topdressing urea 5~10 kg per acre, using acupuncture points or ditching, applying soil immediately after fertilization to prevent loss of fertilizer volatilization, 0.3%~0.5% at the filling stage of Yanghua. The potassium dihydrogen phosphate or 5% superphosphate leaching solution was sprayed on the leaves, and sprayed with 50-60 kilograms of fertilizer solution per acre evenly. The effect of increasing yield was significant.
The heading and flowering period of the second drought-resisting corn is the period with the most water requirement in a lifetime. It requires the soil water holding capacity to be about 70%~80%, and the relative humidity in the field is about 65%~90%. If there is insufficient moisture, high temperature and drought will affect the development and vigor of maize pollen and filaments, affecting pollination and fertilization, and when severe, will cause a decline in the seed setting rate of maize and a decrease in yield. In the case of high temperature or extreme drought, the viability of pollen is easily lost; high temperature and drought easily make the filaments dry and lose their viability. Pollen on the stigma is difficult to germinate, or because the filaments do not supply enough water after germination, the rate of pollen tube reaching the ovary slows down, there is only a small amount of fertilization after pollination, and finally the rate of seed setting is not high and the lack of grain is formed. Therefore, when the corn blossoms, in the event of drought, it should be timely irrigation and drought, through irrigation, add water, adjust the humidity in the field. Irrigation should be carried out in the evening. Ditch irrigation should be adopted and flood irrigation should not be used.
Three pests and diseases Prevention and treatment of summer maize in the middle and late period, the main pests are corn borer, armyworm and so on. Corn borer at the end of the leaf stage, when the strain rate reaches 10%, 0.5% methamidophos granules can be used 0.5 kg, 50 kg of fine soil can be applied to the big bell mouth; at the heading stage, there are insects after corn silking and flowering. When the strain rate reaches 20%, 90% of trichlorfon is used per acre and 100 kg of water is sprayed to prevent and control sprinkling. When there are 50 to 100 stickworms in the 100 plant growth stages of the corn field, 2.5% trichlorfon powder can be used, 2 to 2.5 kg per mu.

By taking an organic farming and processing approach, the main characteristics of organic foods come from organic farming systems that are eco-friendly. Organic food production and processing, do not use chemical pesticides, chemical fertilizers, chemical preservatives and other synthetic substances, and genetically engineered organisms and their products, therefore, (organic food) is a truly from the nature, nutrition, high quality and Safe and environment-friendly (ecological food), Xihuangcao active ingredient Xihuangrouxin A, Mei-Mei A, has anti-cancer activity, has a significant inhibitory effect on human cervical cancer cells

Organic Coptis

Organic Coptis,Shizhu Coptis,Organic Coptis Powder,Organic Coptis Chinensis Extract

Chongqing Taisun Pharmaceutical Co., Ltd. , http://www.taisuncoptis.com