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我所研制配套上海Ⅰ型机动插秧机的2FS碳铵粒肥深施装置,在1978年底初步定型的基础上,1979年在上海郊区10个县和浙江丽水地区进行了大面积多点中间试验,并作了机械深施碳铵粒肥与一般施肥的对比试验。现将在上海县各试点对比试验结果介绍如下:
The 2FS ammonium fertilizer application device developed by Shanghai I Type Mobile Transplanter was developed based on the preliminary setting at the end of 1978. In 1979, a large area multi-point pilot was conducted in 10 counties in Shanghai suburbs and in Lishui, Zhejiang Province. Made a mechanical deep carbon ammonium fertilizer fertilizer and the general comparison of fertilization test. Now in Shanghai Pilot Comparison Test results are as follows: