|Title:||水稻苗栗2號健康管理技術||Other Titles:||Techniques of Health Management in Newly Rice Variety Miaoli 2||Authors:||朱盛祺
|Keywords:||水稻;播種量;栽植密度;芽孢桿菌;rice (Oryza sativa L.);amount of seedling;plant density;antagonistic microorganism;Integrated Crop Management||Issue Date:||Dec-2015||Publisher:||農業試驗所||Start page/Pages:||67-74||Source:||農業試驗所特刊;第188號||Conference:||103年度重點作物健康管理生產體系及關鍵技術之研發成果研討會論文集||Abstract:||
本研究為建立水稻苗栗2 號健康管理之生產模式，以水稻苗期至成熟階段減少用藥及肥料用量之栽種技術為主。苗期以每箱 250g 稻種育苗並以芽孢桿菌 ML15-4 處理秧苗，培育健康秧苗；300g 稻種及無處理芽孢桿菌為對照。在栽植密度與肥料施用量，掌控健康管理插秧苗數為 6–9 支、栽植密度 21 cm，田間施肥氮磷鉀三要素用量為 N: K2O: P2O5 = 120: 56: 60(kg/ha)。慣行法中插秧秧苗數為 10–12 支，栽植密度以 16 cm，氮素增為180 (kg/ha)。試驗結果在稻熱病發生上，健康管理法可以降低葉稻熱病68.6%、穗稻熱病35.4%；稻穀產量減少3.5%、食味計值增加18.2%，在整體淨收益可提高至13.6%。
The basic philosophy of crop health management (CHM) is based on integrated management of environment-friendly method to product safe and good food. The goal of this study was to be established the system of CHM from seedling stage to ripen stage on Miaoli 2 released by Miaoli District Agricultural Research and Extension Station (MDARES). Firstly, seeds were treated antagonistic microorganism to disinfect against seed-bored diseases at seedling stage or pre-transplanting which was isolated and identified by MDARES have been multiplied. Then the amount of seeds in one seedling box was decreased from 300 g to 250 g/0.18 m2. At transplanting, the modified the plant density in CHM was 30*21 cm that in the conventional method was 30*18 cm. The results showed that infection of leaf and panicle blast reducing 68.6% and 35.4%, respectively. The reduction in grain yield was decreased by 3.5% and panel value of Miaoli 2 was increased by 18.2% in CHM. In conclusion, a less pesticide application and relative net income increased by 13.6% could be through CHM which can create ventilation environment by healthy seedlings, wide plant density, and appropriate amount of fertilizer application.
|Appears in Collections:||農業化學組|
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