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Position: Home > Articles > Studies on Water Consumption Characteristics and Effects of Crops Rotation in Plateau of North Hebei Province Scientia Agricultura Sinica 2001,34 (1) 56-60

冀北高原作物耗水特性与倒茬效应研究

作  者:
张立峰;边秀举;刘玉华
单  位:
河北农业大学农学院
关键词:
轮作;耗水量;水分利用效率;土地当量比;冀北高原
摘  要:
通过长期定位试验 ,研究了冀北高原栗钙土农田主要作物耗水特性及其倒茬效应。结果表明 ,春小麦、莜麦、豌豆、亚麻与马铃薯等作物间生长季农田耗水量差异不大 ,而不同作物与茬口间水分利用效率差异显著 ,前者变化在 1.34 7~ 11.177kg· ha- 1· mm- 1 ,后者相差 11.44 %~ 46 .6 6 %。本文以土地当量比 (L ER)为指标 ,定量评价了轮作倒茬的综合生物学效果 ,并进一步分析了 2~ 4年轮作周期下的高 L ER值作物轮作方式。
译  名:
Studies on Water Consumption Characteristics and Effects of Crops Rotation in Plateau of North Hebei Province
作  者:
ZHANG Li feng, BIAN Xiu ju, LIU Yu hua (Hebei Agricultural University, Baoding 071001)
关键词:
Rotation; Water consumption; WUE; LER;Plateau of north Hebei Province
摘  要:
Experiments were carried out in 1994~1998 to study the effects of crop rotation and crop water consumption characteristics of field with sandy chestnut soil in plateau of north Hebei province . Five crops including spring wheat, oat, pea, flax and potato were examined. There were few differences in field water consumption among the crops during the growing season. WUE varied significantly within a range of 1.347~11.177 kg·ha -1 ·mm -1 among crops and 11.44%~46.66% among previous crops. It was pointed out that the land equivalent ratio (LER) can be used as an index to evaluate the biological effects of crop rotation comprehensively. The 2~4 year crop rotation patterns with higher LER were estimated in the paper.

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