Effects of Rice Planting Methods Pattern and Rice Residue Inputting Modes on Soil Nutrients
To investigate the changes of soil nutrient content under different planting patterns and application modes of rice,the contents of organic carbon,available nitrogen,available phosphorus,available potassium,total nitrogen,total phosphorus and total potassium in the soil of straw application,biochar inputting and non-inputting under the field conditions of Liaoxing-21 were compared.The results showed that compared with transplanting,the content of available phosphorus,available potassium and total phosphorus in soil increased by 0.9%,5.4%and 7.1%,and the content of organic carbon,available potassium,total nitrogen and total phosphorus in soil significantly increased by 9.6%,20.1%,5.3%and 8.1%,respectively.Therefore,direct seeding combined with biochar inputting to the field can be an effective measure to improve farmland fertility and soil nutrients to promote the reuse of rice resources in the northern cold region.
万方数据
维普
