辽西褐土施肥及养分循环再利用中长期试验Ⅴ.不同降水年景作物产量对施肥的反应和水肥交互作用

应用生态学报 ›› 2003, Vol. ›› Issue (12): 2205-2207.

辽西褐土施肥及养分循环再利用中长期试验Ⅴ.不同降水年景作物产量对施肥的反应和水肥交互作用

张璐, 沈善敏, 宇万太, 廉鸿志

中国科学院沈阳应用生态研究所, 沈阳 110016

收稿日期:2002-12-27 修回日期:2003-06-02 出版日期:2003-12-15
通讯作者: 张璐,女,1954年生,实验师,主要从事土壤与农业养分循环试验工作,发表论文多篇.
基金资助:
国家重点基础研究发展规划项目(NKBRSF、G1999011804);中国科学院知识创新重大项目(KZCX24134);中国科学院“九·五”重点基金资助项目(KZ952JI214)

Long-term trial on fertilization and on use of recycled nutrients in farming systems Ⅴ. Response of crop yields to fertilization in different precipitation years and estimates of water and nutrient interaction

ZHANG Lu, SHEN Shanmin, YU Wantai, LIAN Hongzhi

Institute of Applied Ecology, Chinses Academy of Sciences, Shenyang 110016, China

Received:2002-12-27 Revised:2003-06-02 Online:2003-12-15

摘要/Abstract

摘要： 通过比较平水年(1996年,作物生长期降水456mm)和丰水年(1998年,作物生长期降水598mm)作物对施肥的增产反应,初步估算了辽西半湿润半干旱地区水肥交互作用对作物增产的贡献.结果表明,施氮肥并增加水分供给(降水增加),作物增产(玉米、大豆)3056kg·hm^-2,其中1996kg·hm^-2来自水肥交互作用,占65.3%.施NP和堆肥并增加水分供给,作物增产4703kg·hm^-2,其中1554kg·hm^-2来自水肥交互作用,占33%.

Abstract: According to the responses of crop yields under fertilizations in1996 with normal precipitation (456 mm in crop growth season) and in1998 with higher precipitation (598 mm in growth season),the effect of water and nutrient interaction on crop yields in semihumid semiarid region of west Liaoning Province were estimated. Under Napplication and sufficient water supply (more rainfall),the increase of crop yields was 3056 kg穐m^-2 ,of which,1996 kg穐m^-2 was estimated from water nutrient interaction,while in NPand compost treatment with sufficient water supply,the yield increase was 4703 kg穐m^-2 ,of which,1554 kg穐m^-2 was estimated from water nutrient interaction.

中图分类号:

S181

张璐, 沈善敏, 宇万太, 廉鸿志. 辽西褐土施肥及养分循环再利用中长期试验Ⅴ.不同降水年景作物产量对施肥的反应和水肥交互作用[J]. 应用生态学报, 2003, (12): 2205-2207.

ZHANG Lu, SHEN Shanmin, YU Wantai, LIAN Hongzhi. Long-term trial on fertilization and on use of recycled nutrients in farming systems Ⅴ. Response of crop yields to fertilization in different precipitation years and estimates of water and nutrient interaction[J]. Chinese Journal of Applied Ecology, 2003, (12): 2205-2207.

参考文献

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