Popularizing intensive Seedling raising and strengthening Green Prevention and Control

At present, various parts of our country have entered the stage of vegetable production in autumn and winter, which is one of the most important stubble in vegetable production in China, which is of great significance to ensure the market supply in autumn, winter and spring and the stable increase of vegetable farmers' income. In order to strengthen the management of autumn and winter vegetable production, the Ministry of Agriculture recently issued the "2015 National Technical guidance on Autumn and Winter vegetable production".

The technical guidance for the production of autumn and winter vegetables was formulated by the vegetable expert guidance group of the Ministry of Agriculture according to the climatic characteristics of autumn and winter, the occurrence regularity of major diseases and insect pests and the occurrence of meteorological disasters, combined with the consumption demand of vegetable market in winter and spring. According to the main production links, such as variety selection, arrangement of planting stubble, raising seedlings, cultivation management, prevention and control of diseases and insect pests, the corresponding high yield and high efficiency measures were put forward respectively.

The vegetable expert guidance Group of the Ministry of Agriculture suggests that in terms of variety selection, in addition to selecting vegetable varieties with good commodity quality, high quality and high yield, and high resistance, multi-resistance and directional immunity, we should also pay attention to the rational collocation of early, middle and late ripening varieties, and long-distance transport vegetables should choose varieties that are resistant to storage and transportation. Light is one of the main limiting factors for the production of vegetables with high quality, high yield and high efficiency in winter. The light in the facility should be increased by cleaning the greenhouse surface, removing excess branches and leaves, artificial light supplement and other measures.

Autumn is a period of frequent occurrence of diseases, pests and weeds, so priority should be given to agronomic, physical and biological control techniques. Comprehensive application of distant rotation, flood and drought rotation according to local conditions, demonstration and promotion of soil disinfection and remediation techniques, prevention and control of soil-borne diseases, and the use of chicken manure and pig manure with excessive harmful elements is strictly prohibited.

Typhoon, rainstorm, high temperature, drought diseases and insect pests occur frequently at the turn of summer and autumn, frost in late autumn, cold injury in winter and spring, freezing, rain and snow disasters occur from time to time. Agricultural departments in various localities should actively communicate with meteorological departments, do a good job in forecasts and forecasts, and make preparations in advance. Jiangnan and South China should pay attention to preventing waterlogging, high temperature and drought, and North and Northwest China should pay attention to preventing continuous droughts in autumn and winter. The northern areas should be prepared to prevent strong cooling in winter and, if necessary, take emergency warming measures to strictly prevent the occurrence of frost damage.