高吸水性树脂对夏玉米土壤含水量及出苗率的影响
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摘要
探讨了不同剂量高吸水性树脂对土壤水分蒸发、夏玉米(Zea mays L.)蒸腾蒸发土壤水分含量及夏玉米出苗率的影响。结果表明,0.25%以上剂量树脂处理土壤水分蒸腾蒸发损失量显著低于0(CK)和0.10%剂量树脂处理;各树脂处理土壤水分蒸发损失量呈现出0.10%剂量及CK>0.25%剂量>0.50%及以上剂量的趋势;各树脂处理夏玉米蒸腾耗水量没有显著差异;0.10%及0.25%剂量处理夏玉米出苗率显著高于其他处理。综合比较,0.25%剂量高吸水性树脂处理在一定情况下有利于改善土壤的水分状况和提高出苗率。
The effects of different doses of super absorbent resin on soil water evaporation, soil water evapotranspiration and emergence rate of summer maize(Zea mays L.) were studied. The results showed that the soil water evapotranspiration content under the treatment of above 0.25% dosages were significantly lower than that of CK and 0.10% dosage. The soil water evaporation from high to low was CK and 0.10% dosage, 0.25 dosage, 0.50% and above dosages. The transpiration content of summer maize showed no significant difference among all the treatments. The emergence rate of treatment of 0.10% and0.25% dosage were significantly higher than that of other treatments. Considered all the indicators, 0.25% dosage of super absorbent resin was beneficial for improving soil water condition and increasing emergence rate.
The effects of different doses of super absorbent resin on soil water evaporation, soil water evapotranspiration and emergence rate of summer maize(Zea mays L.) were studied. The results showed that the soil water evapotranspiration content under the treatment of above 0.25% dosages were significantly lower than that of CK and 0.10% dosage. The soil water evaporation from high to low was CK and 0.10% dosage, 0.25 dosage, 0.50% and above dosages. The transpiration content of summer maize showed no significant difference among all the treatments. The emergence rate of treatment of 0.10% and0.25% dosage were significantly higher than that of other treatments. Considered all the indicators, 0.25% dosage of super absorbent resin was beneficial for improving soil water condition and increasing emergence rate.
引文
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[2]杜建军,王新爱,廖宗文,等.不同肥料对高吸水性树脂吸水倍率的影响及养分吸持研究[J].水土保持学报,2005,19(4):27-31.
[3]易菊珍,梁子倩,张黎明.腐植酸钠聚丙烯酞胺水凝胶吸水性能的研究[J].中山大学学报(自然科学版),2007,46(2):36-40.
[4]王砚田,华孟,赵小雯,等.高吸水性树脂对土壤物理性状的影响[J].北京农业大学学报,1990,16(2):181-186.
[5]杜太生,康绍忠,魏华.保水剂在节水农业中的应用研究现状与展望[J].农业现代化研究,2000,21(5):317-320.
[6]杜建军,廖宗文,冯新,等.高吸水性树脂在赤红壤及砖红壤上的保水保肥效果研究[J].水土保持学报,2003,17(2):137-140.
[7]曾掌权.三种保水剂的保水特性对春玉米生长的影响[D].长沙:湖南农业大学,2009.
[8]李景生,黄韵珠.土壤保水剂的吸水保水性能研究动态[J].中国沙漠,1996,16(1):86-91.
[9]穆俊祥,孟宁生,刘拴成,等.保水剂用量对马铃薯生长和土壤水分的影响[J].节水灌溉,2017(2):44-47.
[10]黄伟,张俊花,张立峰,等.不同保水剂对甜菜生长影响的生理效应[J].生态学杂志,2015,34(7):1910-1916.
[11]李杨,王百田.保水剂对土壤物理性状和棉花生长的影响[J].江苏农业科学,2015,43(10):97-99.
[12]李杨,王百田.高吸水性树脂对沙质土壤物理性质和玉米生长的影响[J].农业机械学报,2012,43(1):76-82.