|Title:||施肥對于稻熱病之發生及藥劑撒佈效果之影響(第二報)田間之施肥與稻熱病發生之關係||Other Titles:||Effect of Fertilizers on the Occurrence of Rice Blast Disease and its Control (2) Results of Paddy Field Experiment||Authors:||簡錦忠
|Issue Date:||3-Sep-1960||Publisher:||農業試驗所||Journal Volume:||9||Journal Issue:||3||Start page/Pages:||17-23||Source:||農業研究||Abstract:||
The relation between the prevalence of rice blast (Piricularia oryzae) disease, and rates and time of N. P. K. fertilizer application were studied. The result indicated that the degree of leaf and neck blast disease infections were greatly increased, despite of simultaneous increase of decrease of phosphorus and potash fertiliers. The blast disease infection was lighter when the N. P. K. fectilizers were applied at the rates of 80, 60, 60 or 80 kilograms per hactre respectively. With regard to the rates of fertilizers application the prevalence of sheath and leaf spots was similar to that of blast disease. Among the three elements applied, nitrogen fertilizer tended apparently to induce the disease infections. The grain yield was greatly reduced as the result of infections with blast, leaf and sheath spots, and sheath rot diseases, howevee, the grain yield was freatly improved when the total amount of potash was increased, and a half of which was used as basic manure and the other half was used as top-dressing.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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