The green beans, also known as beans, are one of the major vegetable varieties in our city. Autumn sowing beans have a short growth period, are listed early, and are of good quality, and are deeply loved by consumers. When the value of vegetables is off-season, the economic benefits are higher. The main technical points for the autumn sowing bean are as follows: 1. Select the good seed. Autumn sowing beans should be used for the selection of sprawling varieties, not dwarf varieties. Can choose to use white saffron, Dong cited a number. Second, timely sowing. The best sowing date before and after the beginning of autumn (in the mountains can be appropriate earlier), must not be sown early, because the average daily temperature of the beans over 27 °C can not blossom and scar. Third, fine soil preparation, adequate base fertilizer. After the ploughing, a 1 meter wide rake is made, and the central sulcus is applied with 25 kg of compound fertilizer per mu or 1,000 kg of farmyard fertilizer (column fertilizer). Each pod has two rows of 25-30 cm plant spacing. 4-5 seeds per hole. Sunscreen or straw should be covered after sowing. To prevent soil erosion after thunderstorms, affect the emergence of seedlings, remove the film after emergence, and cover the straw to leave the straw between the rows to cover the soil, which can effectively maintain the soil moisture and facilitate the growth of green beans. Fourth, timely scaffolding, scientific management. After emergence, the seedlings once, leaving 3-4 per hole. Apply thin fertilizer once every 7-10 days. And the introduction of vines on the shelf, heavy fertilizer once during flowering, acres of urea 15 kg, pouring water. Fifth, pest control. The disease of autumn sowing beans is light, generally do not need to control. Insect pests mainly include aphids and leguminosae. Aphids can be treated with 10% imidacloprid for 2000 times. The legume mealworms can be sprayed with the biological pesticide Haizheng Exterminator 2000 times at the flowering stage, and the flowers that fall on the ground must be sprayed. The bean larvae first harm the flowers, and the pods that fall on the ground also have bean larvae. After landing flowers, the insect source can be eliminated completely.
Blood Gas Analyzer,Portable Blood Gas Analyzer,Blood Chemistry Analyzer
Medsinglong Medical Equipment Co., Ltd. , http://www.gzultrasound.com