Study on the Functional Characteristics of Apple/Crops Intercropping Agroforestry Systems
Wu Gang, Feng Zong-wei, Qin Yi-zhe
Chin J Plan Ecolo. 1994, 18 (3):
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In this article, we have analysed the characteristics of Malus pumila intercropping with Triticum sativum and Arachis hypogaea(M.T.A.)community in the northern Henan province in Huang-Huai-Hai Plains and compared them with Farmland system (Triticum sativum and Arachis hypogaea). The results showed that (1) The system is one that has multi-population, multi-levels, multi-performance and multi-benefits;(2)The M. T.A. system can resist hot-dry wind, high and low temperature, and can increase soil natrient, change the structure of species population and increase the stability of system; (3)In M.T.A.system, the Economic yield was 5218.6kg·ha-1,the annual productivity was 17645.6kg· ha-1·yr-1, the litterfall amount was 206.9kg·ha-1·yr-1, the net economic benefit from 1988 to 1991 was 50781.2yuan·ha-1·yr-1, the standing crop of energy was 78.4699× 1010J·ha-1, the annual net energy production Was 49.6× 1010J·ha-1·yr-1, the energy transfermation efficiency of PHAR (ETE = NEP/PHAR × 100%)was 1.138%. (4) In M. T.A. system,the accumulations of N, P and K were 640.8, 130.8 and 328.4kg·ha-1, respectively; the annual uptakes were 554.5, 96.7 and 253.9kg·ha-1·yr-1 respectively; the annual returns were 16.4, 3.4 and 10.4kg·ha-1·yr-1,respectively;the return rates were 2.9%, 3.5% and 4.1%, respectively.