水土保持学报2017，Vol.31Issue(5)：247-252,259,7.DOI:10.13870/j.cnki.stbcxb.2017.05.038
W-OH固化剂对玉米生长及土壤养分淋失的影响
Effects of W-OH Stabilizer on Maize Growth and Soil Nutrient Leaching
摘要
Abstract
A pot experiment was conducted to study the effects of different W-OH concentration (1％,3 ％ and 5％) on the maize growth and soil nutrient leaching.The results showed that W-OH could effectively promote maize growth and the effect became gradually obvious since the middle stage of maize growth.Under the current experimental conditions,the light and moderate W-OH concentrations (1％ and 3 ％) were more beneficial to maize growth.After potting 3 months,compared with CK (without W-OH),under the light and moderate W-OH treatments,the maize height increased by 16％ and 35％,the net photosynthetic rate increased by 3％ and 17％,the stomatal conductance increased by 34％ and 79％,and the transpiration rate increased 2 and 3 times,respectively.The precipitation had a different influence on water retention of W-OH.For light and moderate rainfall,3 ％ treatment had the lowest leakage,showing the most significant water retention effect.For heavy rainfall and rainstorm,the water retention effect of W-OH was positive related to its spraying concentration.The fertilizer retention effect of W-OH was positive related to its spraying concentration at the initial stage of maize growth and tended to be stable with subsequent rainfall leaching.During the observation period,both 3 ％ and 5 ％ treatments effectively reduced the total nutrients leaching loss,especially for nitrate nitrogen.The findings can provide scientific guidance for application of soil stabilizer in slope land.关键词
土壤固化剂W-OH/作物生长/养分淋失/壤中流/紫色土Key words
W-OH soil stabilizer/crop growth/nutrient leaching/interflow/purple soil分类
农业科技引用本文复制引用
张冠华,孙金伟,牛俊,朱秀迪,谢浩,孙宇婷..W-OH固化剂对玉米生长及土壤养分淋失的影响[J].水土保持学报,2017,31(5):247-252,259,7.基金项目
水利部技术示范项目(SF201601) （SF201601）
中央级公益性科研院所基本科研业务费重点项目(CKSF2017050/TB （）
CKSF2017028/TB) （）
国家自然科学基金项目(41301298) （41301298）
