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The Effects And Appraisals Of Increasing Yield And Efficiency Of Winter Broad Bean Multiple Cropping System In Non-tillage Rice Field

Posted on:2008-10-22Degree:MasterType:Thesis
Country:ChinaCandidate:S H HuFull Text:PDF
GTID:2143360248952784Subject:Agricultural extension
Abstract/Summary:PDF Full Text Request
In the present study, the effects of winter broad bean cultivation pattern of multiple cropping system in non-tillage rice fields, environmental conditions, soil fertility, crop varieties and planting density on increasing yield and efficiency were researched based on investigating the using status of winter rice fields, and collecting cultivation patterns, areas and field in the city of Anshun. One best broad bean variety and good living place were selected to study growth states of broad bean, maturity period, yield and quality, water content and soil fertility, microbial community and number under non-tillage cultivation pattern, compared to those of tillage cultivation. The influence of planting density on yield was studied under non-tillage cultivation manner too. The main results were as follows.Increasing yield and efficiency effects of environmental conditions on winter broad bean cultivation patterns of multiple cropping systems in non-tillage rice field were researched through investigating the cultivation patterns, cultivation areas and yield. The results showed that the field of broad bean rose in the fertile fields. For the same cultivar, there lay large difference in broad bean yield under non-tillage cultivation pattern due to different planting densities.The field was the highest with the planting density of 0.303 million plants / ha in non-tillage rice field. Non-tillage cultivation pattern could lead to early blossom and fruiting, and enhanced weight of 100 seeds of broad bean. The field under non-tillage cultivation manner was 439 kg/hm~2 higher than that of tillage cultivation.Effects of non-tillage cultivation and tillage cultivation on soil water content and pH were little. Compared to tillage cultivation, non-tillage cultivation could increase the content of organic matters, alkali-hydro nitrogen, available phosphor and potassium. The quality of broad bean was improved under non-tillage cultivation pattern.The pattern of planting broad bean in rice fields can increase 318 RMB/mu than the pattern of planting cole. The output of broad bean on non-tillage cultivation pattern was 1kg/mu less than tillage cultivation. But non-tillage cultivation pattern decreased the cost of labour, and it increased soil fertility and soil entironment. The quality of broad bean was increased too. The effects of winter broad bean .cultivation pattern of multiple cropping system in non-tillage rice fields on increasing yield and efficiency were great.
Keywords/Search Tags:rice fields, broad bean, non-tillage cultivation, multiple cropping systems, increasing yield and efficiency
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