宁南旱作土壤培肥途径及技术研究

The Approach and Technology for Bettering Soil Fertility in South Ningxia

根据宁南山区的实际情况，在注重生物培肥的同时，应适量增加化肥投入，走有机与无机相结合的培肥土壤的途径。适合当地生物培肥土壤的措施有：合理轮作，增施有机肥，夏季绿肥压青和秸秆还田等，其中以合理轮作更具有现实性和普遍意义。

Based on actual conditions in the mountain area of south Ningxia,whileattention should be paid to biological bettering soil fertility,the proper amount of chemi-cal fertilizer input must be increased so that the approach to combine organic fertilizerswith inorganic ones for bettering soil fertility can be adopted.The measures suitable forlocal betterment of soil fertility include rational rotation,increasing application of organ-ic fertilizers,green manuring in summer and returning crop residues and stubbles to thefields,of which rational rotation is of realistic and universal significance.