论文部分内容阅读
在青海省互助县曹家堡进行不同类型地膜覆盖马铃薯单因素试验,以白膜覆盖、黑膜覆盖、降解膜覆盖为处理,以起垄露地种植和平地种植为对照。试验结果表明,在土壤深度0～10cm处,增温效果为白膜起垄>起垄降解膜>起垄黑膜>起垄露地>露地平种,10cm深处的增温效果>土壤表面。各种地膜覆盖后均可缩短马铃薯的生育期,提前收获,白膜覆盖和降解膜覆盖缩短生育期的作用大,黑膜覆盖作用小。白膜、黑膜和降解膜起垄覆盖马铃薯后,均可增加马铃薯株高、茎粗,提高马铃薯的结薯数和大薯率,提高马铃薯块茎产量和块茎淀粉产量,但干物质含量和淀粉含量下降,黑膜覆盖后干物质含量、淀粉含量下降的少,白膜覆盖和降解膜覆盖下降的多。普通白膜和黑膜的残留量大,降解膜到收获时基本腐烂。采用白膜或降解膜进行马铃薯覆盖最好。
Different types of single-factor experiments of potato covering with plastic film were carried out in Caojiabao, Huzhu County, Qinghai Province. The treatment was covered with white film, black film and degradable film. The results showed that the effects of increasing temperature at the soil depth of 0 ~ 10cm were white ridge ridging, ridge degrading membrane, ridging black film, ridge opening, open floor plank, warming effect at 10cm depth, soil surface. All kinds of plastic film mulching can shorten the growth period of potatoes, early harvest, white film coverage and degradation of membrane coverage to shorten the growth period of the role of the role of small black film coverage. After the white film, the black film and the degradable film were covered by the ridge covering the potato, the plant height and the stem diameter of the potato could be increased, the tuber number and the tuber yield of the potato increased, the tuber yield and the tuber yield increased, but the dry matter content and starch Content decreased, dry matter content after covering black film, starch content decreased less, white film coverage and degradation of film coverage decreased. Common white film and black film residual large, degradation of the film to the basic rotten harvest. Potatoes are best covered with white or degradable membranes.