首页|Positive effects of biochar application and Rhizophagus irregularis inoculation on mycorrhizal colonization,rice seedlings and phosphorus cycling in paddy soils

Positive effects of biochar application and Rhizophagus irregularis inoculation on mycorrhizal colonization,rice seedlings and phosphorus cycling in paddy soils

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Phosphorus(P)is an essential element for plant growth but is often limiting in ecosystems;therefore,improving the P fertilizer use efficiency is important.Biochar and arbuscular mycorrhizal fungi(AMF)may enhance P cycling in paddy soils that contain high content of total P but low content of available P(AP).In this study,the effects of biochar addition and Rhizophagus irregularis inoculation on the organic and inorganic P contents and phosphatase activities in paddy soils,rice seedling growth,and AMF colonization were investigated.Compared with no biochar addition,biochar addition enhanced the percentage of spore germination at day 7,hyphal length,most probable number,and mycorrhizal colonization rate of R.irregularis by 32％,662％,70％,and 28％on average,respectively.Biochar and R.irregularis altered soil P cycling and availability.Biochar and R.irregularis,either individually or in combination,increased soil AP content by 2％-48％.Rice seedlings treated with biochar and R.irregularis produced greater biomass,improved root morphology,and increased nutrient uptake compared with those of the control without biochar and R.irregularis.The results suggest that combined application of biochar and R.irregularis is beneficial to rice cultivation in paddy soils with high content of total P but low content of AP.

arbuscular mycorrhizal fungiavailable Pphosphorus fractionrice husk biocharseedling growthspore germination

Yixuan CHEN、Zhonghua WEN、Jun MENG、Zunqi LIU、Jialong WEI、Xiyu LIU、Ziyi GE、Wanning DAI、Li LIN、Wenfu CHEN

展开 >

National Biochar Institute,Shenyang Agricultural University,Shenyang 110866(China)

Key Laboratory of Biochar and Soil Improvement,Ministry of Agriculture and Rural Affairs,Shenyang 110866(China)

Guiding Fund of the Central Government for Local Science and Technology Development,ChinaScience and Technology Plan Project of Shenyang,ChinaEarmarked Fund for Modern Agroindustry Technology Research System,China

2023JH6/10010005622-317-2-08CARS-01-52

2024

10.1016/j.pedsph.2023.06.008

土壤圈(英文版)
中国土壤学会,中科院南京土壤研究所和土壤与农业可持续发展国家重点实验室

土壤圈(英文版)

CSTPCD
影响因子：0.477
ISSN：1002-0160
年,卷(期)：2024.34(2)