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This study aims to investigate the impact of rice-husk power generation on agricultural uses of rice husk and its ash. We
conducted case studies at a rice-husk power plant and organic farming groups in northeast Thailand. The case study on a rice-husk
power plant showed that rice husk was useful in generating electricity without consuming fossil fuel, while husk ash, the
by-product, could be utilized as silicate supplement for farmland soils. The case study on organic farming groups indicated
that rice husk was one of the indispensable materials in conducting organic farming with locally available resources. On the
basis of these findings, an analytical study on possible husk uses in Thailand was conducted, in which three potential major
uses of rice husk were considered: i.e. (1) fuel use inside rice mills followed by husk-ash reuse, (2) fuel use at power plants
followed by husk-ash reuse, and (3) direct reuse of husk for compost production. The result indicated that there would be
conflicting demands for rice husk among those uses in the future. Therefore, there needs to be a strategy for balancing husk
uses among them. 相似文献
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以华甜1号超甜玉米为试验材料,设置4种施肥处理,对施用硅酸盐菌剂的肥效进行了研究。结果表明:采用KCl(112.5kg/hm2) 硅酸盐菌剂(30kg/hm2)处理的玉米产量明显提高,玉米株高、叶面积、干重等生长指标均为最高值。 相似文献
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[目的]研究硅酸盐细菌的解钾作用,为利用该菌生产生物钾肥提供科学依据。[方法]从不同地区土样筛选硅酸盐细菌,选出高效菌株DMS3,并进行生理生化鉴定和16SrDNA的PCR分析,对DMS3菌株进行发酵,用发酵液浇灌绿豆,观察其对绿豆各生长指标的影响。[结果]DMS3菌株16SrDNA大约1500bp,该菌有较高的解钾能力,发酵液中K^+浓度达到1020.646μg/L,用该菌液浇灌绿豆可明显提高株高、根长、鲜重、干重等指标。[结论]硅酸盐细菌在液体培养过程中能够产生某些促进植物生长的物质,同时能提高绿豆的抗旱能力,为该菌肥工业化开发应用奠定了基础。 相似文献
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秦岭山区硅酸盐细菌的分离、筛选以及初步鉴定 总被引:1,自引:0,他引:1
针对秦岭周至县不同生境的土壤进行硅酸盐细菌的分离与筛选,对20株生长较好的硅酸盐细菌进行摇瓶培养,测定其发酵液的水溶性钾含量,挑选出解钾能力较强的菌株,并使用传统生理生化特征试验和Biolog微生物自动鉴定仪两种方法对其进行鉴定.结果表明,QL21为1株解钾能力较强的菌株,解钾率为25.1%,该菌为G+革兰氏阳性,菌体为长杆状,产生椭圆芽孢以及椭圆形肥大荚膜,其生理生化特征与芽孢杆菌很接近,经Biolog微生物自动鉴定仪鉴定为芽孢杆菌. 相似文献
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硅酸盐细菌在农业中应用的研究动态 总被引:10,自引:0,他引:10
硅酸盐细菌能将土壤中难溶性的钾、磷等元素转化为可溶性,还能固氮,同时其代谢产物能抑制植物病原菌生长、改善土壤肥力。施用硅酸盐细菌与化学钾肥相比,农作物增产效果好、成本低、不污染环境,具有很高的经济、生态价值。本文从生物学特性、对土壤中硅酸盐类矿物的分解作用及其机理、在农业生产中的应用效果等方面对国内近年来硅酸盐细菌的研究动态作一综述,并指出了其中存在的问题和发展趋势。 相似文献
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