生物有机肥对木薯产量及土壤理化性状的影响  

Effects of Bio-organic Fertilizer on the Root Tubers Yield of Cassava and the Physical and Chemical Biological Character of Soil

作　　者：韦茂贵[1] 罗兴录[1] 黄秋凤[1] 

机构地区：[1]广西大学农学院,南宁530005

出　　处：《中国农学通报》2011年第9期242-248,共7页Chinese Agricultural Science Bulletin

基　　金：国家农业科技成果转化资金项目(2008GB2E100248);国家科技支撑计划项目(2007BAD75B02);广西科技攻关项目(桂科攻0782003-A1)

摘　　要：试验以木薯品种‘新选048’为供试品种,用湘桂生物有机肥作追肥,共设CK(0kg/hm2),A(150kg/hm2),B(300kg/hm2),C(450kg/hm2),D(600kg/hm2)5个处理,观察测定木薯农艺性状、生理指标及土壤理化性状。结果表明:施用生物有机肥后,改善了木薯地的土壤物理性状,增加了土壤的有机质、碱解氮、速效磷、速效钾含量,促进了木薯的生长,增加了木薯块根的产量,增长幅度分别为A处理1.59%、B处理22.93%、C处理38.01%、D处理15.98%。其中以C处理450kg/hm2增产效果最佳。由此可见,施用生物有机肥是改善土壤理化性状,提高木薯产量的一个有效途径,在中等土壤肥力条件下,每公顷施用450kg为宜。Effects of bio-organic fertilizer on the root tubers yield of cassava and the physical and chemical biological character of soil were studied in this experiment,of which the cassava variety ＇ Xinxuan048 ＇ and the bio-organic fertilizer produced by Xianggui company were used as materials.The bio-organic fertilizers were applied on five different levels of 0 kg/hm 2,150 kg/hm 2,300 kg/hm 2,450 kg/hm 2,600 kg/hm 2 in this experiment.The agronomic characters and physiological targets of ＇ Xinxuan048 ＇ and the physical and chemical biological character of soil were analyzed during the experiment.The results showed that the bio-organic fertilizer could increase the holes percent of soil,increase content of organic matter,available nitrogen,phosphorus and potassium,and promote the stems and leaves of cassava growth,and increase the yield.The mot tubers yield of the 450 kg/hm 2 bio-organic fertilizer treatment was the highest which increased the root tubers yield by 38.01% higher than that of the contro1.The 450 kg/hm 2,600 kg/hm 2,900 kg/hm 2 bio-organic fertilizer treatments increased the root tubers yield by1.59%,22.93% and 15.98% respectively higher than that of the contro1.

关 键 词：生物有机肥 木薯 产量 土壤理化性质 

分 类 号：S533[农业科学—作物学]