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1.油菜秧田整地质量高,肥水条件好,适时播种红花草,可保全苗。而稻板套种,容易烂种渍苗,加之稻株荫蔽大,苗弱、苗稀。 2.油菜秧田里的红花,画期生长条件好,冬春发得早,鲜革产量高。如以油菜秧田和稻板套种的七十年代初,本市郊区粮食三熟制不断扩大,冬绿肥面积受挤,一般以翌年的早稻秧田播种绿肥。结果是后季稻茬的绿肥苗脚难全,生长不好,入春翻耕较早,产民低。青浦县赵屯公社曙光大队,七十年代初开始在油菜秧田内套种红花草,而后翻作早稻秧田。经多年生产实践证明,可确保全苗,4月下旬耕翻前每亩产量在6000斤以上。 (一)套种红花的好处
Rape seedling field preparation of high quality, fertilizer and water conditions are good, timely sowing safflower grass, can protect the seedlings. The interplanting rice, easy to seize seedlings, coupled with the large shade of rice plants, weak seedlings, seedling sparse. 2. rape safflower safflower, the growing conditions of good painting, winter and early spring hair yield, high yield of fresh leather. For example, in the seventies of the early 1970s when intercropping seedlings of rapeseed and rice were planted, the three-crop system of grain in the suburbs of the Municipality continued to expand and the area of winter green manure was squeezed. Green manure was generally sown in the early-season rice seedlings in the following year. The result is that after the green stalks of late rice stubble is not easy, poor growth, early spring tillage, low birth rate. Shuguang County, Zhao Tuen commune Shuguang brigade, early seventies beginning of intercropping safflower grass in rape seedling, and then turned into early rice seedling. After years of production practice has proved that to ensure that all seedlings, in late April before the tillage per acre in more than 6,000 pounds. (A) the benefits of intercropping safflower