机械作业下土壤理化性质和生态因子的变化

摘要/Abstract

摘要： 通过3年对黄淮海农业机械化推广的研究,探讨了机械综合作业对旱作农业的影响.结果表明,机械化秸秆还田、化肥深施、土壤深松和免耕覆盖等综合技术的合理配套实施,可以改善土壤理化性状,具有明显的生物学效应.与传统作业相比,机械综合作业使土壤容重减少0.08g·cm^-3,有机质含量增加12%,水分利用率提高10.1%～13.6%,小麦玉米产量增加1218kg·hm^-2.

关键词: 机械作业, 土壤, 生态因子, 生物效应, 尾巨桉, 植物水分来源, 水分利用效率, 干旱胁迫

Abstract: Three years agricultural mechanization extension project in Huang Huai Hai regions showed that the application of comprehensive agricultural technologies which included the return of straw and stalk to field by mechanization,deep application of fertilizer, deep plough and soil no tillage with mulch,had an obvious biological effects.In comparing with traditional cultivation,the comprehensive mechanized cultivation could decrease soil bulk density by 0.08 g·cm^-3,increase soil organic mater by 12%,improve moisture utilization by 10.1～13.6%,and increase the grain yields of wheat and corn by 1218 kg·hm^-2.

Key words: Mechanized cultivation, Soil, Ecological factors, Biological effect, water source, Eucalyptus urophylla ×E. grandis, drought stress, water use efficient

中图分类号:

Q154.4
S233

夏萍, 任丽. 机械作业下土壤理化性质和生态因子的变化[J]. 应用生态学报, 2002, (3): 319-322.

XIA Ping, Ren Li. Changes of soil physical,chemical and ecological factors under mechanized cultivation[J]. Chinese Journal of Applied Ecology, 2002, (3): 319-322.

参考文献

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