Research into the Supporting Technology of Super-wide Film and Density Reduction Seeding Mode of Cotton
LI Hui-qi · 2015
[Objective] The study aims to discuss a super-wide film and density reduction seeding mode suitable for cotton. [Method]Effects of two super-wide film and density reduction seeding modes of cotton on cotton growth,yield and quality were discussed to provide theoretical references for the innovation of cotton cultivation mode in Xiaohaizi reclamation area. [Result]The seeding mode( 66 + 10 + 66 cm) with the theoretical density of 130 725 plants / hm2 has too low density,which leads to few plants harvested; the number of bolls per plant is high,but the total number of bolls per hectare will decline inevitably,thereby affecting the increase in the yield of seed cotton ultimately. The seeding mode( 10 +66 + 10 + 66 + 10 cm) with the theoretical density of 196 088 plants / hm2 can not only give full play to the advantages of each individual plant,but also get reasonable number of plants and bolls per plant. Therefore,it has obvious comprehensive advantages compared with the conventional seeding mode( 10 + 66 + 10 cm) with the theoretical density of 238 107 plants / hm2,being worth promoting. [Conclusion]The seeding mode( 10 +66 +10 +66 +10 cm) with the theoretical density of 196 088 plants/hm2 is suitable for cotton in Xiaohaizi reclamation area.