草屑腐解物理化性质调节+文献综述
毕业论文关键词： 草屑腐解物；理化性质；栽培基质；
Physical and chemical properties of decomposing grass clippings and regulation
Abstract: The clippings generated from mowing the lawn will be composted in high temperature and with the aerobic condition in School, measure the chemical and physical properties of the grass clippings . Draw chase rot temperature curve and explore chemistry PH, EC, CEC and physical properties of bulk density , water holding capacity , total porosity, pore water retention , aeration porosity and gas -water ratio , and explore ways to adjust the physicochemical properties and operations feasibility . Planting rushes (juncus effusus L) on improved matrix, observe and measure various physical and chemical indicators after planting . Evaluate the ion matrix and the grass clippings strengths and weaknesses based on a comparison and analysis of experimental data used in the production. The results showed that: the temperature with a sharp rise at first declines slowly, and finally maintained at a certain temperature which means a compost completely ； PH increased from acidic to neutral .It is suitable for most plants .It did not need improvement and can be planted directly ； the EC is low at first, then returned to normal by water irrigation EC, without the need for improvement ； The high CEC values indicate a strong fertilizer , which is the major advantage ； With an excellent physical properties of low bulk density, porosity , permeability, good water holding capacity .It did not need for adjustment. Planting rushes grow well, physicochemical of matrix partial change after planting , which will provide a good research methods to improve the matrix and recycle of grass clippings, as for it can get the way to the humanities requirements of sustainable development.
Keywords:grass clippings decomposing; the chemical and physical properties;growing media
目 录
1绪论 1
1.1国内外草屑研究状况 1
1.2研究目的及意义 2
2材料与方法 3
2.1 试验设计及供试材料 3
2.2 试验仪器及器具 3
2.3 实验试剂 3
2.4 测定项目及方法 3
2.4.1 草屑腐解温度的测定 4
2.4.2 草屑化学性质的测定 4
2.5统计分析 6
3 结果与分析 7
3.1 草屑腐解温度曲线 7
3.2溶液酸碱度PH的调节 9
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