南方农业学报2017，Vol.48Issue(5)：793-799,7.DOI:10.3969/j.issn.2095-1191.2017.05.006
贵州春马铃薯生物效应及土壤肥力对 不同类型缓释肥的响应
Responses of biological effects and soil fertility to different slow release fertilizers for spring potato in Guizhou
摘要
Abstract
[Objective]The present experiment was conducted to study the effects of different slow-release fertilizers on biological effect and soil fertility for spring potato in Guizhou, which provided reference for the simplified cultivation, "re-duce the application of fertilizer and pesticide" and "save water, fertilizer and pesticide" comprehensive technology inte-gration of spring potato in Guizhou. [Method]In the field test, seven different slow release fertilizers and common compound fertilizers were used. The effects of different slow release fertilizers on yield, tuber traits and soil fertility in the same amount of fertilizer(N 240 kg/ha, P2O5120 kg/ha and K2O 270 kg/ha) were studied. [Result]Compared with control, the slow re-lease fertilizers Jinzhengda, Nuotaike, Yangfeng and Shikefeng could significantly increase the yield of spring potato by 19.1%-24.6%(P<0.05, the same below). Compared with control, in slow release fertilizer treatments, tuber yield per plant increased by 2.6%-73.1% and the large and medium-sized tuber percentage increased by 6.6%-15.1%. The effects of Jinzhengda were the best. While slow release fertilizers Xiyang, Wofute and Hualong decreased the yield significantly. Compared with the control, application of slow release fertilizer could increase the soil pH(3.8%-7.5%), organic matter (27.1%-59.1%), total nitrogen(14.3%-33.3%), alkali-hydrolyzable nitrogen(8.7%-47.8%), total potassium(7.0%-26.3%) and available potassium(8.8%-42.1%). But total phosphorus and available phosphorus content decreased by 7.1%-21.4%and 35.6%-58.0%respectively. [Conclusion]Slow release fertilizers can increase the yield of spring potato and improve soil fertility obviously. But the effects of different slow release fertilizers are various. Overall, slow release fertilizers Jinzhengda, Nuotaike, Yangfeng and Shikefeng have the optimal yield increasement, and can be promoted in local area.关键词
马铃薯/缓释肥/产量/结薯性状/土壤肥力Key words
potato/slow release fertilizer/yield/tuber trait/soil fertility分类
农业科技引用本文复制引用
张萌,马智黠,徐永康,张荣华,芶久兰,陈龙,周瑞荣,柳玲玲,何佳芳..贵州春马铃薯生物效应及土壤肥力对 不同类型缓释肥的响应[J].南方农业学报,2017,48(5):793-799,7.基金项目
公益性行业(农业)科研专项项目(201503127) （农业）
贵州省农业科学院院专项项目(黔农科院院专项[2016]025号,黔农科院院专项[2013]010号) （黔农科院院专项[2016]025号,黔农科院院专项[2013]010号）
