Effects of Pear-Wheat Inter-cropping on Water and Land Utilization Efficiency

The effects of Pear-Wheat inter-cropping with big spacing and several rows on water, yields and land utilization in the Huang-Huai-Hai Plain,were studied in this paper. The results indicated that the wheat transpiration in inter-cropping decreased by 21.6% compared to sole wheat field （CK1）.The soil water content in the range of 0.0～3.0 m away from the pear rows decreased but increased away from 6.0～25.0 m. In general, the soil water capacity of 0～200 cm depth and water utilization efficiency by wheat in the inter-cropping increased by 18.1% and 8.7% compared to CK1 repectively. The wheat yields in inter-cropping increased by 6.6% compared to CK1.The land equivalent ration（LER） was 1.19. So, it is feasible that this kind of inter-cropping will be developed in the Huang-Huai-Hai Plain as for the above-mentioned results.