论文部分内容阅读
土面覆盖剂是一种化学乳状剂 ,喷洒地表后 ,具有提高土壤地温和抑制土中水分蒸发的作用 ,有利于早春蔬菜的生长。我们利用土面覆盖剂在春露地黄瓜上试验 ,结果表明 ,在 5～ 1 0cm的土壤层温度可提高 0 .35℃～ 1 .2 0℃ ;土壤含水量能保持在 1 0 .0 9%～ 1 1 .0 7% ;黄瓜植株长势优于对照 ,产量比对照高 4 3.6%～ 60 .8% ,比地膜覆盖的低 3.4 %～ 1 3.7%。
Soil cover agent is a chemical emulsion, after spraying the ground, with the increase of soil temperature and inhibition of soil moisture evaporation role, is conducive to early spring vegetable growth. We use the soil cover agent on spring exposed cucumber, the results show that in the 5 ~ 10cm soil layer temperature can be increased by 0.35 ℃ ~ 1.20 ℃; soil moisture can be maintained at 1.09% ~ 1 1 .0 7%. The cucumber plants grew better than the control and the yield was 43.6% ~ 60.8% higher than the control and 3.4% ~ 13.7% lower than the mulching.