毕业论文

打赏
当前位置: 毕业论文 > 生物论文 >

生物炭在蔬菜生产中的应用(田间试验)

时间:2018-10-26 11:44来源:毕业论文
生物炭作为一种多孔隙、有较大比表面积特性的物质,在土壤结构改良和理化性质调理方面具有较好的作用。本试验室将生物炭与化学氮磷钾复混肥进行有机结合,试制出具有土壤改良

摘要:生物炭作为一种多孔隙、有较大比表面积特性的物质,在土壤结构改良和理化性质调理方面具有较好的作用。本试验室将生物炭与化学氮磷钾复混肥进行有机结合,试制出具有土壤改良、提高肥料利用效率的炭基复混肥产品。本试验分别在白菜、萝卜、大蒜三种蔬菜上,采用NPK总养分41.55%的炭基复混肥作为基肥,与NPK总养分45%常规复合肥进行田间试验比较,评价相对减少养分29%、绝对减少养分3.45%的炭基复混肥对蔬菜生长、土壤理化性状的影响。试验数据表明:相对于使用45%常规复合肥,使用41.55%炭基复混肥对土壤容重减小0.3-0.5 g/l,对土壤含水量提高0.5-1.0%;对土壤碱解氮提高0.6-0.7ppm,对土壤有效磷提高10-15 ppm,对土壤速效钾提高100-200ppm;同时,对萝卜、大蒜生物学性状差异显著,对白菜生物学性状差异不显著;对萝卜增产11.48 %,对大蒜增产38.24 %,对白菜增产13.33 %。试验结果证明:在少量减少化学肥料用量的基础上,使用炭基复合肥不仅能够适当改良土壤理化性状,而且能够提高蔬菜产量。29689
毕业论文关键词:生物炭基肥;理化性质;蔬菜;产量
Application of biological carbon in vegetable production ( field experiment )
Abstract: As the ceaseless developing science and technology that the bio-chai applying technique has been continuously expanded towards each one of science areas and also have a marked impact on agriculture. As be one of bio-organic with multiple inter-space and a greater proportion of surface that bio-char 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 bio-char with fertilizer Contrast experiment of the fungal feeding compounds fertilizer and N-P2O5-K2O as starter treatment in distributing manure over fields.Comment the influence in bio-chemical character of soil which has caused by experimental subjects. The result indicates that Bulk density reduce 0.3-0.5 per unit and moisture content increase 0.5-1.0 percentage, nitrogen content increase 0.6-0.7 ppm, phosphorus content increase 100-200 ppm. Vitamin and minerals in vividly rising up which content in vegetables. This experiment enough to prove that bio-char has its special character to ameliorate the soil structure and biochemical feature, enhance the quality and production simultaneously. 源¥自%六^^维*论-文+网=www.lwfree.cn
Key words: Bio-char ;Bio-chemical character ; vegetables; production
目      录
摘要:    2
关键词:    2
Abstract:    2
Key words:     2
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
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 生物炭在蔬菜生产中的应用(田间试验):http://www.lwfree.cn/shengwu/20181026/25027.html
------分隔线----------------------------
推荐内容