论文部分内容阅读
谷子是我省主要粮食作物之一,常年种植100万亩左右。除草与间苗是两项关键的谷田管理措施。不少谷田往往因除草不够及时,形成草荒,造成减产。用2,4—D丁脂进行化学除草,省力省时,对阔叶类杂草的防除效果达90%以上。具体措施如下: 1.选地。2,4—D丁酯是茎叶处理内吸传导型除草剂,主要防除谷田的阔叶杂草,如各种苋菜、刺儿菜、旋花等。所以,用2,4—D丁酯,要选择以阔叶杂草上优势的前茬为麦田和耕作管理条件较好的地块为宜。 2.适时早播,保全苗壮苗。谷子幼苗期生长缓慢,易受药害。谷田化学除草的指导思想是前期以
Millet is one of the main grain crops in our province, perennial planted about 100 acres. Weeding and thinning are two key Valley Management Practices. Many Gutian often due to lack of timely weeding, the formation of grassland shortage, resulting in reduced production. Chemical weeding with 2,4-D butyl fat, labor-saving and time-saving, broad-leaved weeds control effect of more than 90%. Specific measures are as follows: 1. Choose the site. 2,4-D butyl ester is stems and leaves inside the conduction type herbicides, the main control of Tanaba broadleaf weeds, such as various amaranth, sage, spinach and so on. Therefore, the use of 2,4-D-butyl, to choose the advantages of broadleaf weed on the wheat crop and tillage management conditions better land suitable. 2. Sow early, to protect seedlings Miao. Millet seedlings grow slowly, susceptible to injury. Gutian chemical weeding guiding ideology is to early