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利用3年时间,在辽宁西部朝阳县域内开展不同平茬类型对野生平榛(Corylus heterophylla Fisch.ex Bess.)丰产效果的影响试验。试验结果表明,井字形平茬通风透光作用和边缘效应非常明显,丰产效果最佳。该平茬方法的平均坚果产量(风干重)可达到1 141.3kg/hm~2,分别是带状平茬和全面平茬的1.8倍和3.2倍;平均产值可达4.56万元/hm~2,与全面平茬对比,可增加纯产值3.11万元/hm~2。井字形平茬把平榛群落沿横山和顺山分割成若干个小区,便于技术管理人员通行,也有利于果实采摘和病虫害防治机械化作业。
Using three years, the effect of different stubble types on the yield of Corylus heterophylla Fisch.ex Bess was tested in Chaoyang county, western Liaoning. The test results show that, well-shaped stubble ventilation and light effect and edge effect is very obvious, the best yield. The average yield of nuts (air-dried weight) of the stubble method can reach 1 141.3kg / hm 2, which is 1.8 times and 3.2 times that of stubble and full stubble, respectively. The average output value can reach 45600 yuan / hm 2 , Compared with the comprehensive cropping, increase the net output value of 31,100 yuan / hm ~ 2. Well-shaped stubble Ping hazel community along Yokoyama and Shun Mountain into a number of small areas, to facilitate the passage of technical managers, but also conducive to fruit picking and mechanization of pest and disease control operations.