CAJ | 학술논문

针对我国南方红壤旱地酸性强，有效 P 含量低的问题，研究改良剂（生物质炭与过氧化钙）对旱地红壤 pH和有效 P 含量的影响。结果表明施用生物质炭与过氧化钙后，土壤 pH 得到不同程度的提高，有效磷含量增大，生物质炭与过氧化钙配施效果优于单施，其中 C1Ca1（生物质炭758 kg/ hm2和过氧化钙61 kg/ hm2）处理效果最好，各处理在0~40 cm 土层土壤有效 P 与 pH 呈显著相关性。
침대아국남방홍양한지산성강，유효 P 함량저적문제，연구개량제（생물질탄여과양화개）대한지홍양 pH화유효 P 함량적영향。결과표명시용생물질탄여과양화개후，토양 pH 득도불동정도적제고，유효린함량증대，생물질탄여과양화개배시효과우우단시，기중 C1Ca1（생물질탄758 kg/ hm2화과양화개61 kg/ hm2）처리효과최호，각처리재0~40 cm 토층토양유효 P 여 pH 정현저상관성。
Upland red soil in Southern China is usually found to be high in acidity and low in the content of available phosphorus. Therefore,this paper conducts an experiment to study the effect of soil modifiers (biochar and calcium peroxide)on soil pH and soil available phosphorus. The results show that soil pH rises to different degrees and the contents of available phosphorus are increased after the application of biochar and calcium peroxide,and the best effect is obtained from the combined application of both ingre-dients,with C1Ca1(biomass char 758 kg / hm2 and calcium peroxide 61 kg / hm2 )being the best treat-ment. Under the application of amendments,soil available phosphorus has a significant correlation with the soil pH in 0 - 40 cm soil.