农业工程学报2012，Vol.28Issue(6)：144-149,6.DOI:10.3969/j.issn.1002-6819.2012.06.024
旱地施有机肥对土壤水分和玉米经济效益影响
Effects of organic fertilizer application on soil moisture and economic returns of maize in dryland farming
摘要
Abstract
A field experiment (2007-2010) was conducted at Weibei Dryland to determine the effects of different organic fertilizer rates on soil moisture and economic returns of maize (Zea mays L.). Organic fertilizer at rates of 0 (CK ), 7500, 15 000 and 22 500 kg'hm"2 combined with the same rate of chemical fertilizer was applied into field plots. The results showed that manure treatments significantly increased soil moisture storage by 11.49%-21.63% compared with CK; high rate of manure treatment increased soil moisture storage by 9.09% than low rate of manure treatment during maize big trumpet period in the fourth year of fertilization (2010) . High rate of manure treatment significantly increased the average soil moisture storage in 200 cm soil layer by 4.79%-7.65% compared with control. Medium rate of manure treatment had significantly higher average soil moisture storage in 200 cm soil layer by 6.50% than control in the fourth year of fertilization. Manure treatments significantly increased water use efficiency byl2.37%-37.55% compared with control. High and medium rates of manure treatments significantly increased water use efficiency in contrast with low rate of manure treatment. Soil conditions were no longer the major limiting factors for increasing water use efficiency with the manure application years increased. It is suggested that medium rate of manure treatment had an obvious effect on conserving moisture and increasing income of maize.关键词
土壤/水分/肥料/旱地/水分利用效率/经济效益Key words
soils/ moisture/ fertilizers/ dry land/ water use efficiency/ economic returns分类
农业科技引用本文复制引用
王晓娟,贾志宽,梁连友,韩清芳,杨保平,丁瑞霞,崔荣美,卫婷..旱地施有机肥对土壤水分和玉米经济效益影响[J].农业工程学报,2012,28(6):144-149,6.基金项目
国家"十一五"科技支撑计划项目(2006BAD29B03) （2006BAD29B03）
国家"十二五"科技支撑计划(2011BAD29B09 （）
2011AA1005A4) （）
陕西科技创新项目(2010NKC-03 （）
2011NXC01-16) （）
