Greenhouse vegetable crop rotation scheduling must be reasonable, with scientific planning for year-round planting
The crop rotation scheduling for greenhouse vegetables must adapt to the market and be tailored to local conditions and to the specific greenhouse.
In terms of crop rotation scheduling, the following principles should generally be mastered:
First, based on market prices, arrange the vegetable harvest peak period during the time when vegetable prices are highest.
Second, arrange the vegetable maturation period during the season most suitable for vegetable growth. Only by combining high yield with high prices can high benefits be achieved, reducing management difficulty and production losses. In fact, for greenhouses with poor insulation performance, if two-crop-per-year production is carried out, namely the winter-spring crop and the autumn-winter crop, making full use of the light and heat resources from March to June and from September to November, high yield and high efficiency can also be obtained.
Third, improve the utilization rate of the greenhouse. Winter-warm greenhouses have the problem of being "idle in summer," and arched sheds have the problem of being "idle in winter." During the summer fallow period of winter-warm greenhouses, straw mushrooms can be cultivated and long beans can be planted; during the winter idle period of arched sheds, small rapeseed and spinach can be planted, which can effectively improve planting benefits.
Fourth, consider rotation and crop change with other vegetables to reduce pests and diseases and prevent secondary soil salinization.