论文部分内容阅读
我县是个以产水稻为主的三熟地区,全年无霜期230天左右,常规油、稻、稻栽培,油菜5月中旬成熟,早稻7月底成熟,晚稻11月中旬成熟,在季节上茬茬紧张。但如改用早熟品种,则产量不高,群众说“三五一十五,不如二八一十六”。这一状况是我县发展三熟制的主要障碍。近年来,通过对杂交油菜、杂交早、晚稻的小面积的试种,都表现
My county is a three-season paddy-based areas, the annual frost-free period of about 230 days, conventional oil, rice, rice cultivation, rape ripening in mid-May, early maturing mature at the end of July, late November ripening late rice in the season stubble tension. However, if the switch to early-maturing varieties, the output is not high, the masses say “three five fifteen, not as good as 2816.” This situation is the main obstacle to the development of three county system. In recent years, hybrid rape, hybrid early and late rice small area of the trial species, all performance