4种不同氮源对稻壳腐熟处理效果的研究

The Effect of Four Different Nitrogen Sources on Rice Husk Compost

为寻求稻壳腐熟发酵的最佳氮源,通过单因素实验设计选取鸡粪、硫酸铵、硝酸铵、尿素4种材料作为稻壳腐熟处理氮源,研究稻壳发酵过程中物理化学性质及腐熟度变化情况,并进行育苗检验。结果表明,稻壳经过腐熟处理其理化性能有所改良,其含有的有机质、纤维素、可溶性糖得到不同程度的降解,腐熟发酵后稻壳基质趋于稳定。通过腐熟发酵过程及育苗实验综合分析得出,单一尿素作为稻壳腐熟氮源效果不理想,鸡粪作为稻壳腐熟氮源效果最好。

Chicken manure, ammonium sulfate, ammonium nitrate and urea were used in a single factor experiment to select the best nitrogen source for rice husk compost by assaying the changes of rice husk chemical and physical properties in the compost and by seedling test. The results showed that the chemical and physical properties of the rice husk were improved after composting with some degree of degradation of the organic matter, cellulose, soluble sugar. Rice husk＂ matrix tended to be stable. It was also revealed chicken manure was the best nitrogen source and urea should not be applied with as the only nitrogen source.