基本信息来源于合作网站,原文需代理用户跳转至来源网站获取       
摘要:
The upland rice productivity in the state of Rond?nia is still low, in view of the potential of culture. The use of cultivars adapted to different regions and more responsive to fertilizer employed is an essential practice which can change that. The aim of this study was to evaluate the agronomic characteristics and productivity of two upland rice cultivars with nitrogen, phosphorus and potassium (N-P-K) doses in two municipalities in the southern state of Rondonia region. The experimental design was a randomized block design with four replications in a factorial 2 × 2 × 5, with the first factor composed of two cultivars (hybrid Ecco and conventional farming AN Cambará), the second factor, the environment of the two municipalities, Cerejeiras and Vilhena and the third factor of five doses of N-P-K (0-0-0, 30-40-30, 60-60-60, 90-90-90 and 120-100-120 kg·ha-1). The characteristics evaluated were: tillering, number of integers and sterile grains per panicle, weight of 1000 grains, grain yield (kg·ha-1) and whole grain yield. There was no triple interaction between the three factors for any of the traits. The hybrid Ecco has higher tillering ability than AN Cambara and presents fewer sterile grains per panicle, heavier 1000 grains and hence greater productivity. For both cultivars, the highest yields are obtained with a dose of 120-100-120 kg·ha-1 N-P-K. For the Ecco, the productivity is achieved with this dose and the dose of 90-90-90 kg·ha-1 is statistically similar. There is no difference in productivity between the municipalities when the dose of N-P-K is less than 60-60-60 kg·ha-1. The highest yield of whole grains in function of N-P-K fertilization is obtained in Cerejeiras.
推荐文章
Ecological stoichiometry of nitrogen, phosphorous, and sulfur in China's forests
Forest
Stoichiometry
Nitrogen
Phosphorous
Sulfur
China
Methane production from rice straw carbon in five different methanogenic rice soils: rates, quantiti
13C-labeled rice straw
Methane production
Rice field soil
Microbial community
甜菜nia基因的克隆及不同氮素形态诱导的差异表达
nia基因克隆
氮素形态和处理
基因表达
内容分析
关键词云
关键词热度
相关文献总数  
(/次)
(/年)
文献信息
篇名 Fertilization with Nitrogen, Phosphorus and Potassium in Upland Rice Cultivars in the Southern Region of Rondônia, Brazil
来源期刊 美国植物学期刊(英文) 学科 医学
关键词 ORYZA SATIVA L. Productivity HYBRIDIZATION
年,卷(期) 2015,(14) 所属期刊栏目
研究方向 页码范围 2263-2271
页数 9页 分类号 R73
字数 语种
DOI
五维指标
传播情况
(/次)
(/年)
引文网络
引文网络
二级参考文献  (0)
共引文献  (0)
参考文献  (0)
节点文献
引证文献  (0)
同被引文献  (0)
二级引证文献  (0)
2015(0)
  • 参考文献(0)
  • 二级参考文献(0)
  • 引证文献(0)
  • 二级引证文献(0)
研究主题发展历程
节点文献
ORYZA
SATIVA
L.
Productivity
HYBRIDIZATION
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
美国植物学期刊(英文)
月刊
2158-2742
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
1814
总下载数(次)
0
论文1v1指导