气候变化领域集成服务门户(CCPortal): Mulching with pruned fronds promotes the internal soil N cycling and soil fertility in a large-scale oil palm plantation

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DOI	10.1007/s10533-021-00798-4
	Mulching with pruned fronds promotes the internal soil N cycling and soil fertility in a large-scale oil palm plantation
	Formaglio G.; Veldkamp E.; Damris M.; Tjoa A.; Corre M.D.
发表日期	2021
ISSN	1682563
起始页码	63
结束页码	80
卷号	154 期号:1
英文摘要	Intensive management practices in large-scale oil palm plantations can slow down nutrient cycling and alter other soil functions. Thus, there is a need to reduce management intensity without sacrificing productivity. The aim of our study was to investigate the effect of management practices on gross rates of soil N cycling and soil fertility. In Jambi province, Indonesia, we established a management experiment in a large-scale oil palm plantation to compare conventional practices (i.e. high fertilization rates and herbicide weeding) with reduced management intensity (i.e. reduced fertilization rates and mechanical weeding). Also, we compared the typical management zones characterizing large-scale plantations: palm circle, inter-row and frond-stacked area. After 1.5 years of this experiment, reduced and conventional management showed comparable gross soil N cycling rates; however, there were stark differences among management zones. The frond-stacked area had higher soil N cycling rates and soil fertility (high microbial biomass, extractable C, soil organic C, extractable organic N, total N and low bulk density) than inter-row and palm circle (all p ≤ 0.05). Microbial biomass was the main driver of the soil N cycle, attested by its high correlation with gross N-cycling rates (r = 0.93–0.95, p < 0.01). The correlations of microbial N with extractable C, extractable organic N, soil organic C and total N (r = 0.76–0.89, p < 0.01) suggest that microbial biomass was mainly regulated by the availability of organic matter. Mulching with senesced fronds enhanced soil microbial biomass, which promoted nutrient recycling and thereby can decrease dependency on chemical fertilizers. © 2021, The Author(s).
英文关键词	Gross nitrification; Gross nitrogen mineralization; Indonesia; Management practices; Microbial biomass; Tropical plantation
语种	英语
来源期刊	Biogeochemistry
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/184599
作者单位	Soil Science of Tropical and Subtropical Ecosystems, Faculty of Forest Sciences and Forest Ecology, University of Goettingen, Buesgenweg 2, Göttingen, 37077, Germany; Faculty of Science and Technology, Jambi University, Jl. Tribrata, Km 11, Pondok Meja,, Muaro Jambi, Jambi, Indonesia; Faculty of Agriculture, Tadulako University, Jl. Soekarno Hatta, km 09 Tondo, Palu, 94118, Indonesia
推荐引用方式 GB/T 7714	Formaglio G.,Veldkamp E.,Damris M.,et al. Mulching with pruned fronds promotes the internal soil N cycling and soil fertility in a large-scale oil palm plantation[J],2021,154(1).
APA	Formaglio G.,Veldkamp E.,Damris M.,Tjoa A.,&Corre M.D..(2021).Mulching with pruned fronds promotes the internal soil N cycling and soil fertility in a large-scale oil palm plantation.Biogeochemistry,154(1).
MLA	Formaglio G.,et al."Mulching with pruned fronds promotes the internal soil N cycling and soil fertility in a large-scale oil palm plantation".Biogeochemistry 154.1(2021).