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在菜田生产中,蔬菜不论其种类、数量和种植方式,都比大田和果树等作物复杂得多,管理也比较精细。再加上菜田水肥条件好,杂草发生数量大,危害重,所以菜田化学除草应充分考虑蔬菜栽培中的特点。一、蔬菜栽培方式与化学除草1.以露地栽培化学除草为主。露地栽培和保护地栽培比较,化学除草的重点应放在露地栽培,因保护地栽培蔬菜绝大部分处于冷凉季节,栽培面积又小,部分杂草种子休眠,杂草发生量少,此时劳力还比较充
In the production of vegetable fields, vegetables are much more complex and manageable than crops such as fields and fruit trees, regardless of their species, quantity and planting patterns. Coupled with good water and fertilizer conditions in vegetable fields, weeds occur in large quantities, endangering heavy, so vegetable chemical weeding should take full account of the characteristics of vegetable cultivation. First, the cultivation of vegetables and chemical weeding 1. Open-field cultivation of chemical weed-based. Compared with open field cultivation and protected field cultivation, chemical weeding should focus on open field cultivation, most of the cultivated vegetables in the protected area are in the cold season, the cultivation area is small, some of the weed seeds are in dormancy, and less weeds occur. At this time Labor is still relatively full