红壤丘岗区夏秋干旱季节红薯节水高产高效技术研究  

Water-Saving,High Yield and High Efficiency Planting Technique for Sweet Potato in Summer and Autumn Dry Season in Red Soil Hilly Region

作　　者：尹颛斌[1] 曾贤杰[1] 汤海涛[1] 

机构地区：[1]湖南省土壤肥料研究所,长沙410125

出　　处：《作物研究》2006年第1期57-59,共3页Crop Research

摘　　要：2002-2003年研究了夏秋干旱季节红壤丘岗区红薯节水高产高效技术措施。试验表明：夏薯土施保水剂增产幅度随保水剂用量增加而增加；抗旱剂增产效果低于保水剂，但增投产值率较高。秋薯采用保水剂溶液沾茎，成苗率、产量、增投产值率均有提高；抗旱剂增产不如保水剂，但效益高于保水剂。保水剂与抗旱剂合用对夏、秋薯的产量影响与高浓度保水剂基本相当。但效益低于抗旱剂。Water-saving,high yield and high efficiency technique for sweet potato in summer and autumn dry season in red soil hilly region is conducted from 2002 to 2003. The results indicate that summer sweet potato＇s yield is increased as the amount of application of a super-absorbent. Drought-resistance agent have lower effect of yield increase than super- absorbent,but the ratio of input and output is higher. Seeding-forming percentage,yield,the ratio of input and output are all increased when autumn sweet potato is applied super-absorbent solution on its stem. Drought-resistance agent have better economic benefit but lower yield than super-absorbent. The effectiveness of mixture of super-absorbent and drought-reslstance agent is much the same with higher concentration super-absorbent to the yield of sweet potato. But the later has lower economic benefit than drought-reslstance agent.

关 键 词：红壤丘岗区 红薯 栽培 保水剂 抗旱剂 

分 类 号：S531.04[农业科学—作物学]