聚丙烯酰胺型共聚物对砖红壤上菜心生长状况的影响  

Effects of polyacrylamide copolymer on growth of flowering Chinese cabbage in laterite soil

作　　者：王燕[1] 刘书伟[1] 王毅[1] 曾凌云[1] 

机构地区：[1]琼州学院生物科学与技术学院,海南三亚572200

出　　处：《广东农业科学》2013年第17期24-26,共3页Guangdong Agricultural Sciences

基　　金：海南省三亚市院地科技合作项目(2011YD27);琼州学院青年教师基金(QYQN201240)

摘　　要：运用不同剂量的聚丙烯酰胺型共聚物处理菜心，研究其对菜心生长和水分利用率的影响，为海南省砖红壤蔬菜栽培使用共聚物提供参考依据。结果表明：施用共聚物后各处理菜心的生长状况均优于对照（未施共聚物），其中每667m2用量为4k的处理表现最佳；当每667m。共聚物用量在1N4kg范围内，菜心的根重、地上部鲜重大致随着共聚物用量的增加表现越好，但每667m2用量为5kg的菜心表现不如用量为4kg和3kg的处理；共聚物用量在每667m2 1-5kg的处理在水分利用率方面分别比对照高出14．95％、27．80％、35．22％、43．52％、18．05％。Different dose of polyacrylamide copolymer was applied to flowering Chinese cabbage, in order to study the effect of polyaerylamide copolymer on the the plant growth and water utilization efficiency, and to provide reference for copolymer applying on the vegetables cultivated in laterite soil of Hainan province. The results showed that the growth status of plant applied copolymers was better than the control （without application of copolymer）, and the treatment of 4 kg per 667 mz had the best performance. When copolymer amount was 1-4 kg per 667 mz, the plant root weight and shoot fresh weight showed better with the increasing of copolymer, but the effect of 5 kg per 667 mz was not as good as 3 kg and 4 kg treatment, The water utilization efficiency of the treatment of 1-5 kg copolymer per 667 m2 were 14.95%, 27.80%, 35.22%, 43.52%,18.05% higher than that of the control, respectively.

关 键 词：聚丙烯酰胺 保水剂 菜心 水分利用率 

分 类 号：S685.12[农业科学—观赏园艺]