Effect of Deep Fertilizer Application with Precision Hill-Drilling Machine on Yield Formation and Fertilizer Use Efficiency in Rice (Oryza sativa)
文献类型： 外文期刊
作者： Baimba, Kargbo M. 1 ; Shenggang, P. 1 ; Zhaowen, M. 1 ; Zaiman, W. 4 ; Xiwen, L. 4 ; Hua, Tian 1 ; Farouque, H. 1 ; Ru, T 1 ;
作者机构： 1.South China Agr Univ, Coll Agr, Guangzhou, Guangdong, Peoples R China
2.Minist Agr, Sci Observing & Expt Stn Crop Cultivat South Chin, Beijing, Peoples R China
3.Northern Polytech, Agr Educ Dept, Makeni, Sierra Leone
4.South China Agr Univ, Minist Educ, Key Lab Key Technol Agr Machine & Equipment, Guangzhou 510642, Guangdong, Peoples R China
关键词： Deep fertilizer application;Hill-direct-seeding;Grain yield;Nutrient use efficiency
期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）
ISSN： 1560-8530
年卷期： 2014 年 16 卷 6 期
页码：
收录情况： SCI
摘要： Deep application of fertilizer with precision hill-drilling machine in super rice is a new mechanized mode with high efficiency and labor saving advantages. Field experiment was carried out with different rates of fertilizers using precision hill-drilling machine with the objective of determining super rice grain yield and NPK fertilizer use efficiency in South China area. There were five fertilizer treatments including no fertilizer, 100 kg N ha(-1), 100 kg N ha(-1) + 60 kg SiO2 ha(-1), 125 kg N ha(-1), and 125 kg N ha(-1) + 60 kg SiO2 ha(-1). Super rice special fertilizer comprised 12.5% N, 6.0% P2O5, 10.0% K2O, and 15% organic matter. The super rice varieties were Yuejingsimiao 2 (inbred) and Peizataifeng (hybrid) which are widely grown in South China. Treatments were arranged in a split-plot design with three replications. Grain yield and accumulation of NPK and Si were affected by variety and fertilizer. The highest grain yield was obtained from 125 kg N ha(-1) treatment. Grain yield, affected by silicon, increased at lower N rate and decreased at higher N rate. Peizataifeng was higher in grain yield than Yuejinsimiao 2. Nitrogen, P, K and Si accumulation at maturity were higher with Yuejinsimiao 2 when 125 kg N ha(-1) and 100 kg N ha(-1) were applied, while concentration of N, P, K and Si was least in Yuejinsimiao 2 with no fertilizer added. Physiological phosphorus use efficiency (PPUE) and potassium use efficiency (PKUE) were highest with Peizataifeng when 125 kg N ha(-1) + 60 kg SiO2 ha(-1) was applied, while Physiological nitrogen use efficiency (PNUE) was highest with Yuejinsimiao 2 when no fertilizer was added. (C) 2014 Friends Science Publishers
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