|Title:||Effect of Split Application of Fertilizer on Yield, Components of Yield, and Other Agronomic Characters of Rice (IV)||Other Titles:||肥料分施對水稻產量，產量構成因素，及其他農藝性狀之效果(四)||Authors:||W.L. Chang
|Issue Date:||3-Jun-1967||Publisher:||農業試驗所||Journal Volume:||16||Journal Issue:||2||Start page/Pages:||22-34||Source:||農業研究||Abstract:||
The effects of time of fertilizer application on yield, components of yield, and some important agronomic characters of rice evaluated in 1965 at the Chiayi Agricultural Experiment Station are summarized.
Treatment C with nitrogen fertilizer top-dressed at maximum tillering stage and treatment F, at both maximum tillering and panicle initation stages produced the highest yields in both crops. The yield increases appeared to be due largely to the increase of panicles per hill. Top-dressings of nitrogen fertilizer before maximum tillering stage did not contribute to yield increase. The effects of applying nitrogen fertilizer at heading stage and split application of potassium fertilizer were not evident in this experiment.
Early application of nitrogen fertilizer generally produced more tillers per hill and larger leaf area index in the first crop whereas late application of nitrogen fertilizer resulted in better growth of rice plant in the second crop. There was an indication for a tall and late heading plant to be associated with high yielding ability.
Significant interactions between treatments and years were observed in panicle length and number of grains per panicle in the first crop, and grain yield and number of panicles per hill in the second one.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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