论文部分内容阅读
以番茄为试材,以地膜覆盖、秸秆+地膜覆盖、秸秆覆盖3个处理,以不覆盖为对照,研究了不同地面覆盖方式对秋冬茬日光温室番茄土壤养分、植株生长和产量的影响。结果表明:地膜覆盖处理减少土壤水分消耗效果最为显著,较对照减少46.72mm。地膜+秸秆覆盖处理、秸秆覆盖处理土壤酶活性较高,而地膜覆盖处理酶活性为最低值。番茄收获后,地膜+秸秆覆盖处理的土壤全氮含量最高,而铵态氮和硝态氮含量最低。地膜+秸秆覆盖对株高与对照接近,但能明显增加茎粗。番茄单株产量比较:地膜+秸秆覆盖>地膜覆盖>秸秆覆盖>对照,分别比对照产量提高13.99%、7.77%和1.96%。地膜+秸秆覆盖处理对我国北方日光温室秋冬茬番茄栽培生产具有重要的应用价值。
The effects of different ground covering methods on the soil nutrients, plant growth and yield of autumn and winter stubble tomato cultivars were studied using three treatments including plastic film mulching, straw mulching and straw mulching. The results showed that the mulching film mulching had the most significant effect of reducing soil water consumption, which was 46.72mm less than the control. Mulching + straw mulching, straw mulching had higher soil enzyme activities, and mulching mulching had the lowest enzyme activity. After harvesting tomato, mulching film and straw mulch had the highest content of total nitrogen and the lowest contents of ammonium nitrogen and nitrate nitrogen. Mulch film and straw mulching on the plant height and control close, but can significantly increase the stem diameter. Tomato yield per plant: mulching + straw mulching> mulching mulching> straw mulching> control increased by 13.99%, 7.77% and 1.96% respectively over the control. Mulching film and straw mulching on autumn and winter stubble tomato cultivation in the solar greenhouse in northern China has an important application value.