摘要
在辽宁西部阜新旱作农业示范区进行田间试验,探讨了深松中耕对这一地区土壤养分及玉米产量的影响。结果表明：与传统耕作相比,深松中耕能够提高0-30 cm土层土壤有机质含量及0-20 cm土层土壤全N、P、K含量,以提高0-10 cm土层土壤全N含量最为显著（P＆lt;5%）;能够增加0-20 cm土层土壤碱解氮含量及0-30cm土层土壤有效钾含量,以增加0-10 cm土层土壤有效钾含量最为显著（P＆lt;5%）;显著增加10-30 cm土层土壤有效磷含量（P＆lt;5%）;增加了玉米产量,增加幅度为7.80%。
This paper discussed the effect of inter-tillage on soil nutrients and corn yield by field experiment in dryfarming agricultural demonstration area of Fuxin in Liaoning Province. The results showed that, compared with traditional cultivation, deep loosening cultivation increased the content of soil organic in 0 - 30 cm soil layer and the content of total N, P and K in 0 - 20 cm soil layer, and it improved significantly the content of soil total N （ P 〈 5 % ）. It increased the content of alkaline hydrolytic nitrogen in 0 - 20 cm soil layer and the content of available potassium in 0 - 30 cm soil layer, and increased significantly the amount of available potassium in 0 - 10 cm soil layer P 〈 5% ）. Deep loosening cultivation also increased significantly the content of available phosphorus in 10 - 30 cm layer（ P 〈 5 % ）. Thus it increased the corn yield in this area, and the range of increase was 7.80 %.
出处
《干旱地区农业研究》
CSCD
北大核心
2009年第4期167-170,共4页
Agricultural Research in the Arid Areas
基金
"十一五"国家科技支撑计划"旱作农业关键技术研究与示范"项目(2006BAD29B06)
辽宁省高校创新团队计划项目(2006T119)
辽宁省科技攻关"旱作农业项目"(2007212001)
关键词
深松中耕
土壤养分
玉米产量
辽西半干旱地区
deep loosening cultivation
soil nutrient
corn yield
semiarid region of Western Liaoning Province
