论文部分内容阅读
我县常年种植油菜20～25万亩,其中稻茬直播油菜占95％。直播油菜一生均在大田生长,以看麦娘为主的杂草与油菜竞争激烈,苗期尤为突出。放松除草,常导致缺苗断垄,影响菜苗素质,产量显著下降,重草田基本失收。为了解决油菜草害问题,全县在推广应用杀草丹的同时,1985年引进新型除草剂稳杀得(日本产),以宁油7号为供试品种,在六个点进行小区试验,并在47个乡共4万亩大田开展示范,均取得显著效果,深受农户欢迎。现将本县测报站观察区的试验资料整理如下。
I County perennial plant rape 20 to 25 million mu, of which stubble broadcast rape 95%. Live rapeseed all grow up in the field in the field, in order to see the mother weed mainly rapeseed intense competition, especially at seedling stage. Relaxation weeding, often resulting in lack of seedlings broken ridge, affecting the quality of vegetable seedlings, significantly reduced production, heavy grassland basically lost. In order to solve the problem of rapeseed pests, the county in the promotion of the application of herbicide Dan at the same time, in 1985 the introduction of new herbicide Stabilization (Japan-made), to Ningyou 7 as the test varieties, cell test at six points, In 47 townships and a total of 4 acres of field demonstration, have achieved remarkable results, welcomed by farmers. Now the county observation station observatory test data are summarized below.