论文部分内容阅读
堆肥的养分含量因材料和堆制方法不同,差别很大,但其含钾丰富,且氮比磷含量高。其所含磷素虽低,却多数为速效磷,易被作物吸收利用。堆肥有机质含量高,一般碳氮比较大,分解较慢,但肥效持久,长期施用堆肥有改土作用。
The nutrient content of compost is very different due to different materials and methods of compost, but it is rich in potassium and nitrogen is higher than phosphorus. Although phosphorus is low, most of them are available phosphorus, which are easily absorbed by crops. Composting organic matter content is high, generally relatively large amount of carbon and nitrogen, decomposition slow, but lasting fertilizer, long-term application of compost soil improvement.