Tomato Green Cultivation Technology of Reducing Fertilizer and Pesticide Input and Increasing Fertilizer Efficiency

The main measures include combination use of organic and inorganic fertlizer, effective control of the amount of nitrogen and phosphate fertilizer, reduction of the application amount of chemical fertilizers and pesticides , and rational crop rotation to reduce the occurrence of diseases and insect pests, which can improve the yield and quality of tomato. Mastering the growth and development rules of tomato, creating suitable environmental conditions, controlling or promoting vegetative growth or reproductive growth purposefully play a vital role in improving the yield and quality of tomato. 2 Requirements on environment Tomato prefers warmth and light and is afraid of rain and heat, so it has good growth and high yield in spring and autumn with warm climate and strong light, but has weak growth, heavy disease and low yield in summer with high temperature and heavy rainfall and in winter with low temperature and sparse sunlight. 2.1 Environment of producing area Pollution-free tomato production base should be far away from the pollution of " three wastes" and choose the area with good ecological conditions. The terrain in the base should be flat, with convenient and separate irrigation and drainage system. [...]the producing area must be selected in agricultural production areas with good ecological environment, without or with indirect acceptance of industrial " three wastes" , as well as agricultural, urban life, medical waste pollution. Mepiquat is sprayed once again at 4 - 5 true leaf stage. 4 Transplanting 4.1 Preparation before transplanting Due to the long growth perod of tomato, the basal fertilizer should be dominated by high quality and long-term farmyard manure, and cooperated with other fertilizers. 45 t/hm2 Rotten high-quality barnyard manure or 230 t/hm2 chicken manure can be piled and fermented with equal amount of crop straw, and then 750 -900 kg of NPK (15:15:15) compound fertilizer, 120 kg of superphosphate or not less than 3 000 kg of cake fertilizer, and 750 - 1 125 kg diammonium phosphate are applied.