生物炭在蔬菜生产中的应用(田间试验)【字数:7523】
目录
引言
1 前言 2
1.1研究目的与意义 2
1.2 文献综述 3
1.2.1生物炭的概念及性质 3
1.2.2 生物炭对环境的作用 3
2 材料与方法 3
2.1 试验材料 3
2.2 试验方法 4
2.2.1 炭基复混肥的配比设计 4
2.2.2 常规复混肥和炭基复混肥施肥量、施肥次数: 5
2.3 检测项目与方法 5
2.3.1 土壤各测定项目及分析方法 5
2.3.2 蔬菜生物性状及产量的测定 5
3 结果与分析 5
3.1 炭基复混肥对土壤物理性质的影响 5
3.1.1 炭基复混肥对土壤容重的影响 5
3.1.2 炭基复混肥对土壤水分的影响 6
3.2 炭基复混肥对土壤化学性质的影响 6
3.2.1 炭基复混肥对土壤氮含量的影响 6
3.2.2 炭基复混肥对土壤磷含量的影响 7
3.2.3 *51今日免费论文网|www.jxszl.com +Q: ¥351916072¥
炭基复混肥对土壤钾含量的影响 7
3.3 炭基复混肥对土壤pH的影响 7
3.4 炭基复混肥对三种蔬菜生物学性状的影响 8
3.5 炭基复混肥对三种蔬菜有效产量的影响 8
4 讨论 9
致谢 10
参考文献: 10
生物炭在蔬菜生产中的应用(田间试验)
Application of biological carbon in vegetable production ( field experiment )
Student majoring in Agricultural resources and environment Zhuo Ya
Tutor Yang Xingming
Abstract: As the ceaseless developing science and technology that the biochai applying technique has been continuously expanded towards each one of science areas and also have a marked impact on agriculture. As be one of bioorganic with multiple interspace and a greater proportion of surface that biochar has its special character to ameliorate the soil structure and biochemical features.This experiment is aimed to bringing out new production that has the function of improving efficiency through organically combine biochar with fertilizer Contrast experiment of the fungal feeding compounds fertilizer and NP2O5K2O as starter treatment in distributing manure over fields.Comment the influence in biochemical character of soil which has caused by experimental subjects. The result indicates that Bulk density reduce 0.30.5 per unit and moisture content increase 0.51.0 percentage, nitrogen content increase 0.60.7 ppm, phosphorus content increase 100200 ppm. Vitamin and minerals in vividly rising up which content in vegetables. This experiment enough to prove that biochar has its special character to ameliorate the soil structure and biochemical feature, enhance the quality and production simultaneously.
Key words: Biochar ;Biochemical character ; vegetables; production
1 前言
1.1研究目的与意义
我国是一个农业大国,农业有机废弃物的排放居世界首列,因此农业废弃物的资源化利用和无害化处理对我国尤为重要。作为农业废弃物资源化利用方法的一种,利用农业有机废弃物制备生物炭,不仅可以有效地解决农业废弃物的处理与处置问题,同时还能够制备高品质的生物质炭,用于处理环境污染、改良土壤物理性状,因此受到了国内外学者的关注。生物有机肥料是以农业废弃物为原料,经过多种腐熟微生物菌种的分解转化成堆肥,然后添加适量的有益功能微生物菌剂,二次发酵制成的一种新型肥料。生物有机肥料在提高土壤有机质含量,改善土壤性状、提高土壤肥力、促进植物生长等方面有显著的作用。发达国家十分重视研究生物有机肥发酵技术,在生物有机肥发酵工艺、技术和设备上已日益成熟,基本已达到了规模化和产业化的水平。作物秸秆含有丰富的钾、硅、氮等矿质元素,是一种宝贵的植物营养养分资源。但在我国由于处理和贮运能力不足,农民只有就近焚烧或者少量还田,不仅严重污染了环境而且浪费了资源,采用生物炭技术可以很好实现资源化利用,保护生态环境。
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