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上海市郊区农业的光能利用目前已达到一定高度,1976年复种指数已达2.52.以三熟制为例,全年有350多天都生长农作物,由于耕地有限,发展立体农业大有潜力。农民赵池云一亩地上间套种植10种作物,一年内总产1.9万斤,收入1,620元。目前郊区农田立体利用有以下几种形式。1.农田的立体利用。充分利用土地和生长季,实行各种形式的间作套种,稻田养鱼.2.菜地的立体利用。通过高棵与矮棵、喜荫与喜阳、喜温与喜凉、早熟与迟
The utilization of solar energy in the suburbs of Shanghai has now reached a certain height, and the index of multiplying has reached 2.52 in 1976. Taking the three-cropping system as an example, more than 350 days of growing crops all year. Due to the limited cultivated land, there is great potential for the development of three-dimensional agriculture. Farmers Zhao Chi-yun one set of acres planted on the ground crop of 10 sets, a total annual output of 19,000 pounds, income 1,620 yuan. Currently three-dimensional use of suburban farmland in the following forms. 1. Three-dimensional farmland utilization. Make full use of the land and growing season, the implementation of intercropping intercropping of various forms, rice farming fish .2 three-dimensional use of vegetable land. Through the tall trees and dwarf trees, Xiyam and Xiyang, hi and Xilin cool, early maturity and late