Studying on the Expressions of Rice Agronomic Traits and Yield at fields of Long-term Different Fertilizers

• Main Authors: Yi-Cheng Chang, 張益誠
• Other Authors: Chei-Wei Kuo
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/50058406622478372566

碩士 === 國立嘉義大學 === 農藝學系研究所 === 101 === The objective of this study was to discuss the effects of long-term application of different fertilizer son agronomic traits, dry weight, and grain yield in rice (Oryza sativa L. cv. Kaohsiung 145). Three treatments including, organic fertilizer (organic farming, OF), half -quantity of organic fertilizer and chemical fertilizer (intermediate farming, IF), chemical fertilizer (conventional farming, CF)were conducted in first (2011) and second cropping season (2010) at Chi-nan Branch Station, Kaohsiung District Agricultural Research and Extension Station (KDARES) Kaohsiung, Taiwan. The results indicated, among different treatments, plant growth in OF treatment was showed a superior performance on agronomic traits in second cropping season of 2010. Beside, the different performances in agronomic traits were affected by climate factors in first crop season of 2011. The higher ratio of dry weight of panicle was observed depend on organic fertilizer continuously support in all growth stage. The fertilizer effect on rice grain yield in turn was OF > IF >CF in first and second crop season. In summary, long-term application of organic fertilizer is not only could adjust physiochemical properties of soil and microbial activity, but also reach the highest grain yield, such as significant enhance the yield in second cropping season.