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以油菜秸秆为草浆原料,以豌豆为供试作物,采用对比方法,研究了3.0、1.5、0.75g/盆(以不处理为对照)不同草浆用量对土壤水分和温度变化,以及草浆地膜覆盖对豌豆早期生长发育的影响。结果表明:随着草浆覆盖量的增加,0~5cm深度土壤温差呈现温差减小的趋势,土壤相对湿度与土壤含水量呈增大的趋势,但以上指标处理间差异均不显著(P>0.05,n=3);不同草浆覆盖量处理间的豌豆种子出芽率基本相同,但高于对照(CK),出芽率处理间差异不显著(P>0.05,n=3);各草浆地膜处理下的豌豆株高均高于CK,株高依次为B>A>C>CK,草浆地膜处理下的SPAD小于CK,但随着覆盖量的增加,叶绿素含量呈现降低的趋势,处理间数值差异极小;草浆地膜覆盖处理阻碍了土壤水分散失,保水效果明显,从而有利于豌豆植株的生长。
Using rapeseed straw as raw material and pea as tested crop, the effects of different amount of straw on soil moisture and temperature at 3.0, 1.5 and 0.75g / pot (no treatment as control) Effect of plastic film mulching on early growth and development of pea. The results showed that with the increase of straw mulch, the soil temperature at 0 ~ 5 cm depth showed a decreasing trend of temperature difference, and the relative humidity of soil and soil water content tended to increase. However, there was no significant difference among the above treatments (P> 0.05, n = 3). The sprouting rates of pea seeds were the same among treatments with different coverage of straw mulching, but higher than that of control (CK). There was no significant difference between treatments (P> 0.05, n = 3) The height of pea plants under plastic film mulching treatment was higher than that of CK, and the order of plant height was B> A> C> CK. The SPAD of straw mulching was less than that of CK. However, the chlorophyll content decreased with the increase of mulching film thickness. The difference between the two values is extremely small. Straw mulching prevents soil water loss and has a good water retention effect, which is beneficial to the growth of pea plants.