摘要
对太行山低山丘陵区苹果-沙打旺复合系统的生态经济效益进行了研究,结果表明,对比清耕果园,复合系统可使土壤有机质、速效氮分别提高30.0%、32.0%,速效钾含量降低2.1%,但对速效磷含量影响不大;苹果百叶鲜重提高27.1%～18.2%,叶绿素含量提高24.3%,叶片光合速率提高28.0%;苹果单株产量提高21.1%,单果重提高13.0%,可溶性固形物提高17.8%。
The Ecological and economic effects of Apple-A.adsurgens system in the drought hilly land of TaiHang Mountain were studied. The results showed that: the content of organic matter, readily available N in the 0～30cm soil increased by 30.0%, 32.0% comparing with the pure apple tree stand (CK) respectively, and the content of readily available K decreased by 2.1%; the fresh weight, the SLE, the content of Chlorophyll and the photosynthetic rate of the apple tree leaves and increased by 27.1%～31.8%, 13.34%～18.2%, (24.3%) and 28.0% and 15.5% comparing with CK respectively; the fruit yields increased by (21.1%), average fruit weight increased by 13.0% and soluble solids content by 17.8% in the compound system.
出处
《河南科学》
2004年第6期802-804,共3页
Henan Science
基金
国家林业重点工程科技支持项目(200366)
