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我所今年在批林批孔运动的推动下,在积极试验示范和大力推广棉田化学除草的基础上,又进行了棉花密植化学除草不中耕试验、示范工作。试验面积共6.2亩,其中高密植示范(2万株/亩)1.7亩,共收籽棉713斤,平均亩产皮棉167.8斤,比大田稀植(0.4万/亩)增产42.7%;在同一丘田密植对比试验中,密度在一万株以上者均比稀植增产,一般每亩增产皮棉17.6斤,增产9.8%,比大田稀植增产68%。在同一丘1.06亩稀密各半的试验田
This year, on the basis of the pro-forest campaign approved by Lin and Pok, I conducted a series of experiments and demonstrations on the cotton weed planting and weeding without tillage on the basis of actively experimenting and demonstrating and vigorously promoting chemical weed control in cotton fields. The test area of a total of 6.2 acres, of which high-density demonstration (20,000 / mu) 1.7 acres, received a total of 713 kg of seed cotton, an average of 167.8 kg of lint per mu, more than field planting (0.4 million / mu) yield 42.7% Field density comparison test, the density of more than 10,000 plants were thinner than the increase, generally increased yield of lint per mu 17.6 kg, an increase of 9.8%, 68% more than the field sparse planting. In the same hill 1.06 acres of semi-dense test field