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蔬菜栽培换茬勤,复种指数高,一般2～3茬,高的达5～7茬,甚至更多。这是蔬菜栽培的一大特点。种植的蔬菜能否达到淡季不缺,旺季不烂,四季常青全年均衡供应,更好地提高效益、增加收入,在很大程度上取决于茬口安排。蔬菜的茬口安排,首先要抓住播种的关键季节,轮种轮栽,提前、推后、中间排开播
Vegetable cultivation for stubble Qin, multiple crop index high, usually 2 to 3 stubble, up to 5 to 7 stubble, or even more. This is a major feature of vegetable cultivation. Whether planting vegetables can achieve the off-season is not short, the season is not bad, the evergreen seasons a balanced supply throughout the year, to better improve efficiency and increase revenue, largely depends on crop arrangement. Vegetable stubble arrangement, we must first seize the key seeding season, rotation rotation, advance, push back, the middle row broadcast