保水剂对土壤理化性状和木薯产量影响研究  

Effects of Water Retaining Agent on the Physical and Chemical Biological Character of Soil and the Root Tubers Yield of Cassava

作　　者：刘纪霜[1,2] 罗兴录[1] 樊吴静[1] 黄冬飞 杨鑫[1] 曾文丹[1] 

机构地区：[1]广西大学农学院,南宁530005 [2]南宁市试验中心,南宁530000

出　　处：《中国农学通报》2013年第33期253-258,共6页Chinese Agricultural Science Bulletin

基　　金：广科技攻关项目"木薯节水高效智能化微滴灌溉系统研究与示范"(桂科攻1222014);南宁市科技攻关项目"高产优质木薯新品种选育及配套高产高效栽培技术示范推广"(201109044B)

摘　　要：为探讨保水剂对土壤理化性状和木薯产量的影响,以木薯品种‘辐选01’为材料,在每公顷施用保水剂(0 kg,20 kg,40 kg)的处理下,研究保水剂不同用量对土壤理化性状、木薯农艺性状及产量的影响。结果表明:施用保水剂能改善土壤理化性状,促进木薯生长,提高木薯产量。其中以40 kg/hm2保水剂施用量效果最好,其土壤含水量、孔隙度、速效氮、速效磷、速效钾分别增加了12.56%、16.47%、11.62%、36.87%、45.42%;株高、茎粗分别增加了14.74%、12.74%;木薯产量和经济收入分别增加了36.96%和22.15%。由此可见,保水剂对改善土壤理化性状,促进木薯生长,增加木薯块根产量,提高经济效益起到积极的促进作用,因此可在木薯栽培上推广应用。This study investigated the effects of water retaining agent on the physical and chemical biological character of soil and the root tubers yield of cassava. The cassava cultivar‘Fuxuan 01＇were used as materials.The water retaining agent was applied on three different levels of 0 kg/hm2,20 kg/hm2and 40 kg/hm2in this experiment. The physical and chemical biological character of soil,the agronomic characters of cassava and the root tubers character of soil,the agronomic characters of cassava and the root tubers yield of cassava were analyzed during the experiment. The results showed that,the water retaining agent could improve physical and chemical biological character of soil,promote cassava growth and increase the yield of cassava. The facilitation of the 40 kg/hm2water retaining agent was the best which the soil moisture,total porosity,available nitrogen,available phosphorus,available potassium increased respectively by 12.56%,16.47%,11.62%,36.87%,45.42%; the tree height,stem diameter increased respectively by 14.74%,12.74%; the yield and economic income of cassava increased respectively by 36.96% and 22.15%. This showed that the water retaining agent play a positive role in improving physical and chemical biological character of soil,promoting cassava growth,increasing the yield and the economic benefit of cassava,it should be applied extends in the planting of cassava.

关 键 词：保水剂 土壤理化性状 木薯 产量 

分 类 号：S533[农业科学—作物学]