论文部分内容阅读
近两年来,六团农科所连续在免耕稻田进行了养鱼灭草、改土试验,试验地共6.24亩,该地系弃耕后再收复种稻之地,土质为红胶泥。含盐量大,全盐含量达9％以上,有机质含量低仅为0.7％,1983年收复种稻单产189斤,连成本都收不回来,1984年未曾翻耕整地,仅将原有引水渠挖深60厘米,作为鱼溜,复平时把原田埂填入地块低洼处,重新在原田埂处挖一条宽40厘米,深30厘米的沟作力鱼沟,与引
In the past two years, six groups of agricultural science and technology continued in the no-tillage paddy field fish farming, soil test, a total of 6.24 acres of land, which is abandoned after the reclamation of paddy land, the soil is red clay. Salt content, the whole salt content of 9% or more, organic matter content is only 0.7% low, 1983 recovery yield of 189 kilograms of rice, even the cost will not come back, in 1984 no tillage, only the original diversion canal Dug deep 60 cm, as a fish slip, Fukuda Hirakawa usually fill the low block at the site, re-excavation in Harada a 40 cm wide and 30 cm deep ditch for force fish ditch, and lead