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我县过去晚稻品种繁多,结构布局不合理,是影响产量不高的一个重要原因。1980年,以农垦58为主,共有37个品种。经过整理鉴定,根据我县劳力负担较重,季节矛盾相当突出。威胁晚稻生产的病虫害主要有矮缩病和稻飞虱,以及早稻以迟熟品种为主的具体情况,淘汰了生育期长、不抗飞虱和矮缩病、混杂退化的农垦58,以鄂晚5号、鄂宜105为主要当家品种。鉴于鄂晚5号生育期较短,种性较稳定,较抗飞虱和矮缩病,
In the past, a large variety of late rice in our county and unreasonable structure layout were the important reasons that affect the yield is not high. In 1980, mainly to Nongken 58, a total of 37 varieties. After sorting identification, according to my county heavy labor burden, the contradiction is quite prominent season. The main pests and diseases threatening the production of late rice are dwarf and planthoppers, as well as early maturing varieties of late-maturing varieties of the specific circumstances, out of a long growth period, not resistant to planthoppers and shortening disease, mixed degradation of Nongken 58, Late on the 5th, E-105 as the main varieties. In view of E 5 on the 5th shorter growth period, more stable species, more than against planthoppers and shortening disease,