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《Liaoning Agricultural Sciences》 2006-02
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Study on Potential Grain Productivity of Hilly Fields in Liaoning Province

LIU Yang,NA Bo,LIANG Qiang,ZHEN Bing,JIA Shu-hai (College of Land and Environment,Shenyang Agriculture University,Shenyang,Liaoning 110161)  
The potential grain productivity of corn,broomcorn and soybean is respectively calculated by using mechanism method,and the vital factor that affects practical grain productivity of hilly fields in Liaoning province is analyzed.It is surveyed that in this region the potential productivity of corn is 6 935 kg/hm~2;the potential productivity of broomcorn is 5 920 kg/hm~2;the potential productivity of soybean is(5 627 kg/hm~2).At the same time,slope is the greatest factor that can be controlled for impacting on potential productivity,and then temperature and soil water are the second ones.
【CateGory Index】: S311
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