摘要
通过田间试验研究了红壤丘陵区液体地膜对防治水土流失的效果和持续时间及对作物生长的影响。结果表明:地表径流量荒地喷液体地膜比对照(喷清水)增加1/5;园地比对照增加1/3。土壤侵蚀量荒地喷液体地膜比对照可减少1/2;园地比对照减少近1/3。旱稻喷液体地膜分别提高了出苗14%,有效穗11%,成穗率8%,由此增产753kg/hm2。液体地膜防治水土流失的持续时期约45d,可有效防治红壤地区夏收夏种农时季节的关键性水土流失。
The observations of field experiment on the effect of ecological fluid soil conditioner on the soilwater losses and crop production and its subsequent effect showed that the surface runoff rates of ecological fluid soil conditioner treatment increased by 1/5 for barrenland and gardenland, respectively,as compared with check treatment; the soil erosion in the barrenland and gardenland decreased by 1/2 and 1/3 respectively for ecological fluid soil conditioner treatment as compared with check treatment. The ecological fluid soil conditioner treatment in dry rice enhanced the emerging by 14%, productive panicle by 11%, percentage of earbearing tiller by 8% and grain yield by 753 kg/hm2 as compared with check treatment. The efficacy time of ecological fluid soil conditioner could be nearly 45 days, then to prevent the key stage of soilwater loss in the summer sowingharvesting farm seasons in the red soil regions.
出处
《水土保持学报》
CSCD
北大核心
2003年第2期9-11,共3页
Journal of Soil and Water Conservation
基金
浙江省科技厅"十五"科技项目(No.2002C32022)
