期刊论文

Combining Use of Potassium Fertilizer and Manure to Improve Growth and Yield of Rain-fed Tobacco

中文

灌溉排水学报

1672-3317

2019

38

5

25-30+45

10.13522/j.cnki.ggps.20180225

贵州省科学技术基金项目(黔科合LH字[2014]7220) 贵州省教育厅特色重点实验室项目(黔教合KY字[2017]011).

本校为其他机构

【目的】探明在自然降雨条件下化学钾肥配施有机肥对烟草云烟87生长发育、产量及经济效益的影响,为贵州省黔东南州烟草种植区烟草钾肥的合理施用提供科学依据.【方法】采用田间小区试验,设置4种施钾水平,分别为0水平(K_0:0 kg/hm~2)、1水平(K_1:120 kg/hm~2)、2水平(K_2:240 kg/hm~2)和3水平(K_3:360 kg/hm~2),4个施肥处理,同时每个处理配施有机肥(菜枯,M)2 250 kg/hm~2,调查各处理烟草在生育期内烟株主要的农艺性状、病害发生情况、烘烤后烟叶的经济性状和烟叶产量.【结果】在成熟期,K_3处理烟株各项农艺性状除节间距外均显著优于K_0处理(p

【Objective】Plant growth relies on soil nutrients, and the objective of this paper is to study the efficacy of combining use of potassium fertilizer and manure to improve growth, yield and economic return of rainfed tobacco. 【Method】The variety of Yunyan 87 was used as the model. The experiment was conducted at a field plot in Qiandongnan prefecture, Guizhou province. We considered four potassium fertilizer levels: 0 kg/hm2 (K0), 120 kg/hm2 (K1), 240 kg/hm2 (K2) and 360 kg/hm2 (K3), each applied with 2 250 kg/hm2 of manure (rapeseed cake, M)...