Study on water consumption of con and soybean in different cropping patterns on the semi-arid region of western Liaoning Province
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DOI:10.7606/j.issn.1000-7601.2010.05.08
Key Words: monocropping  intercropping  corn  soybean  laws of water consumption
Author NameAffiliation
ZHANG Ying Shenyang Agricultural University, Shenyang, Liaoning 110161, China 
SUN Zhanxiang Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161, China 
LI Shuang Shenyang Agricultural University, Shenyang, Liaoning 110161, China 
FENG Liangshan Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161, China 
YANG Ning Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161, China 
LIU Yang Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161, China 
HOU Zhiyan Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161, China 
BAI Wei Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161, China 
WEN Feng Shenyang Agricultural University, Shenyang, Liaoning 110161, China 
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Abstract:
      The laws of water consumption of corn and soybean were studied through the FAO Penman-Monteith method and the water balance method on the semiarid region of western Liaoning Province. Compared with that in corn monocropping and soybean monocroppiing, the actual evapotranspiration in intercropping system is 15.37 mm and 29 mm lower respectively in the whole growth period, while the quantity of water deficit is 45.54 mm and 5.68 mm less. The crop coefficient of intercropping system lies between corn monocropping and soybean monocropping, in addition, its degree of agreement between water demand and level of precipitation is better.