|Title:||水稻有機栽培病蟲害管理技術||Other Titles:||The Managerial Technique of Disease and Insect on Organic Cultivation of Rice||Authors:||李健捀
|Keywords:||水稻;有機栽培;病蟲害;rice (Oryza sativa L.);organic cultivation;disease||Issue Date:||Jul-2009||Publisher:||農業試驗所嘉義分所||Related Publication(s):||農業試驗所特刊第138號||Start page/Pages:||121-129||Source:||台灣水稻保護成果及新展望研討會專刊||Conference:||台灣水稻保護成果及新展望研討會
Proceedings of Symposium on Achievements and Perspectives of Rice Protection in Taiwan
The keys of successful organic rice cultivation lied in “the cultivation of high quality of soils and construction of healthy rice”. When the land have been long-term used, the soil resources came to be nutrient deficient gradually. The rice has then not been able to absorb all the needs of nutrients. The condition suppressed the yield and reduced quality of rice. The rice has quite easy been infected by diseases and insects simultaneously. Therefore, the most importance of the rice organic cultivation lied in the improvement of soil physics and chemical quality. The rice organic cultivation selected the non-polluted seeds that might reduce the bakanae disease and rice white-tip disease. The rice transplanted 6-7 seedlings of each clump as suitably. In the rice growing process, each clump formed 20-25 tillers in the first crop season and 15-20 tillers in the second crop. The organic rice was possible to avoid the high temperature and wet microclimates of the field. It could reduce disease and insect’s infection and damage, so that obtained the stable yield. When the crop had the serious damage caused by diseases and insects, Bacillus subtilus was used to control rice blast and bacterial leaf blight, Bacillus thuringiensis or sex pheromone were used and showed promised effect on controlling rice stem borer and rice leaf folder, and narrow range oil or pepper powder were used to control brown plant hopper. It was not suggested that organic rice was cultivated in where the diseases and insects spread easily, like some mountainous area where morning dew condensed and not easy to disperse. The selected variety for organic culture was also important. The varieties which were susceptive to diseases and insects should be avoided.
|Appears in Collections:||植物保護系|
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