Position: Home > Articles > Effects of W-OH Stabilizer on Maize Growth and Soil Nutrient Leaching
Journal of Soil and Water Conservation
2017,31
(5)
247-252+259
W-OH固化剂对玉米生长及土壤养分淋失的影响
作 者：
张冠华;孙金伟;牛俊;朱秀迪;谢浩;孙宇婷
单 位：
长江科学院水土保持研究所
关键词：
土壤固化剂W-OH;作物生长;养分淋失;壤中流;紫色土
摘 要：
采用盆栽试验,研究了不同W-OH喷施浓度(1%,3%,5%)对玉米生长及土壤养分淋失的影响。结果表明:与对照(不喷施W-OH)相比,喷施W-OH对玉米生长有促进作用,且这种作用自玉米生长中期逐渐明显。试验条件下,低、中浓度W-OH(1%和3%)更有利于玉米生长;盆栽3个月后,与对照相比,低、中浓度处理下玉米株高分别增加16%和35%,净光合速率分别增加3%和17%,气孔导度分别增加34%和79%,蒸腾速率分别为对照的2倍和3倍。降雨量对W-OH的保水作用影响不同,小雨和中雨下,3%浓度处理的渗流量最低,保水效果最显著;降雨量达到大雨及以上时,W-OH的保水作用与其喷施浓度成正比。在玉米生长初期W-OH的保肥作用与其喷施浓度成正比,随着后续降雨渗流反复淋溶,其保肥作用趋于稳定;3%和5%浓度的W-OH均能有效减少观测期的土壤养分淋失量,且以硝态氮降幅最大。研究结果为土壤固化剂在坡耕地中的应用提供理论指导。
译 名：
Effects of W-OH Stabilizer on Maize Growth and Soil Nutrient Leaching
作 者：
ZHANG Guanhua;SUN Jinwei;NIU Jun;ZHU Xiudi;XIE Hao;SUN Yuting;Soil and Water Conservation Department,Changjiang River Scientific Research Institute;Research Center on Mountain Torrent & Geologic Disaster Prevention of Ministry of Water Resources;
单 位：
Soil and Water Conservation Department,Changjiang River Scientific Research Institute%Research Center on Mountain Torrent & Geologic Disaster Prevention of Ministry of Water Resources
关键词：
W-OH soil stabilizer;;crop growth;;nutrient leaching;;interflow;;purple soil
摘 要：
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 WOH.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 l and .
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