几种新型保水剂对水肥淋失和菜心生长的影响
Study on the Effects of Several Kinds ofNew Super Absorbent Polymers on Soil Leaching Loss of Water and Nitrogen and Growth of Flowering Chinese Cabbage

作者: 李世坤 :广东润田肥业有限公司,广东 新兴; 钟秀娟 , 毛小云 , 廖宗文 :华南农业大学资源环境学院,广东 广州;

关键词: 新型保水剂氮肥淋失菜心New Super Absorbent Polymers Nitrogen Leaching Flowering Chinese Cabbage

摘要:
通过模拟试验和盆栽试验,研究了3种新型保水剂对土壤蒸发量、氮肥和水分淋失以及菜心生长的影响。土杯淋溶试验表明,加入保水剂可使土壤含水量平均增加7.10%~28.42%。土柱淋溶试验表明,在第14d,与NH4NO3相比,加(PSB)处理的的氮素累计淋失量降低4.68%,与尿素相比,加(NJ1)和(NJ2)处理的氮素累计淋失量分别降低20.20%和14.49%。盆栽实验表明,与NH4NO3相比,施用保水剂处理的菜心生物量的增产幅度为10.33%~34.44%。

Abstract: This paper studied the effects of three kinds of new super absorbent polymers on soil evaporation, nitrogen and water leaching and growth of flowering Chinese cabbage through simulation experiment and pot experiment. The soil cup leaching experiment showed that the soil water content in treatment with super absorbent polymers increased from 7.10% to 28.42% on average. The soil column test showed that on the 14th day of the experiment, the accumulative leaching losses of soil nitrogen in treatment with PSB were 4.68% lower than those in NH4NO3 treatment, while in the treatment with NJ1 and NJ2, the losses were 20.20% and 14.49%. The pot experiment showed that the biomass of flowering Chinese cabbage in treatment with the complex water-retaining agent increased from 10.33% to 34.44% on average than that in NH4NO3 treatment.

文章引用: 李世坤 , 钟秀娟 , 毛小云 , 廖宗文 (2015) 几种新型保水剂对水肥淋失和菜心生长的影响。 农业科学, 5, 199-206. doi: 10.12677/HJAS.2015.56029

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