Nutrient uptake requirements with increasing grain yield for rice in China

CHE Sheng-guo; ZHAO Bing-qiang; LI Yan-ting; YUAN Liang; LIN Zhi-an; HU Shu-wen; SHEN Bing

首页> 中文期刊> 《农业科学学报（英文版）》 >Nutrient uptake requirements with increasing grain yield for rice in China

Nutrient uptake requirements with increasing grain yield for rice in China

开具论文收录证明 >>

期刊封面封底目录下载 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Improved estimates of nutrient requirements for rice (Oryza sativaL.) in China are essential to optimize fertilization regulation for increasing grain yields and reducing the potential of environmental negative inlfuences, especialy under high-yielding intensive systems. A database involving rice grain yields, nutrient concentrations and accumulations colected from on-ifeld station experiments in the literatures published from 2000 to 2013 in China was developed to understand the relationships between grain yields and plant nutrient uptakes, and to quantify nutrient requirements for different yield levels. Considering al data sets, rice grain yield ranged from 1.4 to 15.2 t ha–1 with the mean value of 7.84 t ha–1, andca. 10.4% of yield observa-tions were higher than the yield barrier level of 10 t ha–1. N requirement to produce one ton grain was 21.10 kg for the yield range <4.0 t ha–1 with a high variation of 45.8%. Except of the yield range <4.0 t ha–1, the values of N requirement, ifrstly increased from 18.78 kg for yield range 4.0–5.5 t ha–1 to 20.62 kg for yield range 7.0–8.5 t ha–1, then decreased slightly to 19.67 and 19.17 kg for the yield range 8.5–10 and >10 t ha–1, respectively. Phosphorus (P) and potassium (K) requirements showed increasing trends, from 3.51 and 19.87 kg per t grain for <4.0 t ha–1 yield range to 4.10 and 21.70 kg for >10.0 t ha–1 range. In conclusion, nutrient requirement varied with increasement of grain yield, and N, P and K presented various response trends, increasing, declining or stagnating, which would be of great beneift for improving fertilizer strategies.

著录项

来源
《农业科学学报（英文版）》 |2016年第4期|907-917|共11页
作者
CHE Sheng-guo; ZHAO Bing-qiang; LI Yan-ting; YUAN Liang; LIN Zhi-an; HU Shu-wen; SHEN Bing;
展开▼
作者单位

Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China;

Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China;

Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China;

Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China;

Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China;

Colege of Resource and Environmental Sciences, China Agricultural University, Beijing 100193, P.R.China;

3China BlueChemical Ltd., Beijing 100029, P.R.China;

展开▼
原文格式 PDF
正文语种 eng
中图分类
关键词

Nutrient uptake requirements with increasing grain yield for rice in China

摘要

著录项

相关主题

期刊订阅