摘要
通过3年的田间试验,以常规耕作+施有机肥(CC)为对照,研究了免耕+不种绿肥(ZT)、免耕+种植绿肥(ZG)、常规耕作+不种绿肥(CT)、常规耕作+种植绿肥(CG)处理对玉米产量和土壤质量的影响。研究结果表明:当绿肥种植与免耕技术配合使用较单一技术能够显著提高玉米产量,促进作物对土壤氮磷的吸收,改善土壤理化性质,提高土壤微生物数量和活性,而且3年玉米籽粒的平均干物质量达到了1 198 kg/hm2,为有机农业习惯施肥处理CC的91.94%,可以作为有机农业生产过程中改善土壤肥力和提高作物产量的有效措施,同时能够减少有机肥施用引起的环境风险。
A three-year field experiment was conducted to evaluate the effects of tillage mode and green manure appli-cation on maize yield and soil quality. Five treatments including no tillage ＋ without planting green manure （ZT）,no tillage ＋ planting green manure （ZG）,conventional tillage ＋ without planting green manure （ CT）,conventional tillage ＋ planting green manure （CG） and the reference conventional tillage ＋ organic manure （CC） w-ere set up. The results showed that, compared with the treatment of ZT and CG, the treatment of ZG could significantly increase the yield of maize, promote the absorption of soil nitrogen and phosphorus in crop,improve soil physical and chemical properties, increase the quantity and activity of soil microbes. The average yield of maize grain was 1 198 kg/hm2 under the treatment of ZG,and it reached 91.94% of the yield under the treatment of CC. In conclusion, the use of green manure and no tillage technol-ogy was an effective method to improve soil quality and crop yield, and it could reduce the environmental risk caused by heavy application of organic manure.
出处
《江苏农业学报》
CSCD
北大核心
2017年第6期1272-1277,共6页
Jiangsu Journal of Agricultural Sciences
基金
中央级公益性科研院所基本科研业务专项(20160303
20160201
GYZX170101)
云南省环保公益专项(45012)
国家科技重大专项(2014ZX07206001-01)
关键词
绿肥
免耕
玉米
产量
土壤质量
green manure
no tillage
maize
yield
soil quality
