论文部分内容阅读
一、试验情况我省发展稻田养萍已有八年历史,开初是养殖利用本地红萍(A.imbricata),1978年已推广到十六万亩左右。1979年,细绿萍(A.filiculoides)引进我省玉溪县、宜良等县繁殖观察,取得较好效果。此后逐年扩大推广,到1981年止,全省推广细绿萍约7万亩左右,仅曲靖地区不完全统计,即达5万亩左右。我省于80年3月召开了全省绿肥试验网协作会议,会上统一安排在全省部分专(州)、县进行细绿萍与本地萍周年繁殖对比观察。
First, the test situation Rice paddy development in our province has eight years of history, the beginning of the breeding use of native Hongping (A.imbricata), 1978 has been extended to about 160,000 acres. In 1979, A.filiculoides was introduced into Yixian County, Yiliang County, and other counties to observe the reproduction and achieved good results. Since then, the promotion has been expanded year by year. By the year 1981, about 70000 mu of fine green greenpeace has been promoted in the whole province, with the incomplete statistics of Qujing alone reaching about 50,000 mu. In March 1980, our province held a collaborative meeting of the province’s green manure experiment network, at the same time, a special arrangement was made to observe the annual reproduction of fine green pingpung and local ping in part of the prefectures (prefectures) and counties.