E. Mahmoud, M. Ibrahim, Lamyaa A. Abd El-Rahman, A. Khader
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引用次数: 1
摘要
本试验研究了两季生物炭和磷肥对碱性土壤中小麦(Triticum aestivum L. cv.)磷组分和土壤微生物量碳的影响。gemiza)在野外实验中。试验采用完全随机区组设计，按推荐磷肥的0%、50%、100%和150%加磷，加或不加生物炭，加磷速率为10 th -1，设3个重复。结果表明，2015年和2016年生育季，生物炭与磷矿物互作处理的小麦产量提高了56% ~ 69%。对经磷处理的生物炭进行顺序萃取，发现随着磷含量的增加，HCl-P含量降低，而其他组分含量升高。研究结果表明，在碱性土壤中，生物炭与无机磷的共施是提高土壤生产力和土壤质量的一种有前景的策略。
EFFECT OF BIOCHAR WITH AND WITHOUT PHOSPHORUS FERTILIZERS ON PHOSPHORUS FRACTIONS, WHEAT YIELD AND MICROBAL BIOMASS CARBON IN ALKALINE SOIL
The present work was carried out to investigate the effect of biochar and phosphorus fertilizer application, on phosphorus fractions, soil microbial biomass carbon in alkaline soil during two seasons for wheat (Triticum aestivum L. cv. Gemmiza) in field experiments. Phosphorus was added at 0%, 50%, 100% and 150% P of recommended P fertilizers, with or without biochar at a rate of 10 t h -1 arranged in a randomized complete block design with three replicates. Results showed that the wheat grain yield increased by 56 to 69% in plots treated with the interaction of biochar and P mineral during the 2015 and 2016 growing seasons. Sequential extraction of the biochartreated with P revealed that HCl-P decreased, whereas others fractions increased with increasing P rate. The results of this study reveal that the coapplication of biochar with inorganic P can be a promising strategy to improve soil productivity and soil quality in alkaline soil.
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