Recently, during an interview with Tianshui City of Gansu Province and Weinan City of Shaanxi Province, the reporter found that the phenomenon of continuous cropping of vegetable facilities was common in many places. Many vegetable farmers reported to reporters that due to continuous cropping, vegetables were often cut down or even harvested. How to overcome the continuous crop obstacles, reduce the occurrence of diseases, and maximize the benefits of vegetable farmers? The reporter interviewed the director of the Chinese Society of Horticulture, the Chili Branch, and Zhao Zun, vice president of the College of Horticulture, Northwest Agriculture and Forestry University. Zhao Zun analyzed the reasons for the obstacles to continuous cropping of vegetables and proposed solutions for the majority of vegetable farmers. Causes of continuous crop obstacles in vegetable crops Under continuous cropping conditions, the temperature (humidity) is appropriate, and crop root exudates and plant residue decays provide abundant nutrition and host to pathogens. Facilities and cultivation conditions lead to multiple diseases and insect pests, and the large number of pesticides used will adversely affect the microbial population in the soil and beneficial microorganisms such as nitrogen-fixing bacteria, rhizobia, and organic matter decomposing bacteria in the soil. Excessive application of chemical fertilizers results in the reduction of pathogenic antagonistic bacteria in soil, which contributes to the propagation of soil pathogens and aggravates the occurrence of soil-borne diseases. Ways to overcome continuous crop obstacles (a) Rotations In the same field, there is a sequence of rotations of different crops or multiple cropping combinations between seasons or years. Zhao Zunlian told reporters that in solving the continuous crop obstacles in vegetable crops, crop rotation is a method that is widely used and has obvious effects. Many diseases of crops such as Vicia faba root rot, beet brown spot, tomato bacterial wilt, etc. are all infested by soil. If the rotation of susceptible host crops and non-host crops is carried out, the number of such pathogens in the soil can be eliminated or reduced, and the disease can be reduced. In addition to the effective prevention and control of soil-borne diseases, rotation can also solve the problem of root exudates and autotoxicity, as well as non-transmissible diseases caused by crop residues. (B) intercropping Zhao Zun practice told reporters in addition to crop rotation, intercropping is also an effective way to overcome the continuous crop obstacles. He pointed out that crops with two or more fertility seasons close to one another, planted on the same plot or planted at intervals, could not only increase land use efficiency and yield per unit area, but also partially solve the problem of continuous cropping obstacles. . For example, in the production of vegetables, the onion garlic and other vegetable crops are interplanted. Since the root exudates of onion and garlic can effectively kill certain harmful germs, the occurrence of related diseases can be reduced. Household Cleaner,Grease Cleaner Kitchen,Household Carpet Cleaner,Cleaning Spray Wuxi Keni Daily Cosmetics Co.,Ltd , https://www.kenicosmetics.com
How to Overcome Continuous Crop Obstacles in Facility Vegetables