Effect of ensilaged vegetable crop residue amendments on soil carbon and nitrogen dynamics

被引：13

作者：

Agneessens, L. ^{[1
]}

Viaene, J. ^{[2
]}

Vanden Nest, T. ^{[2
]}

Vandecasteele, B. ^{[2
]}

De Neve, S. ^{[1
]}

机构：

[1] Univ Ghent, Dept Soil Management, B-9000 Ghent, Belgium

[2] Inst Agr & Fisheries Res ILVO, Plant Sci Unit, Crop Husb & Environm, B-9820 Merelbeke, Belgium

来源：

SCIENTIA HORTICULTURAE | 2015年 / 192卷

关键词：

Vegetable crop residues; Ensilage; N immobilization; N losses; Feedstock for anaerobic digestion; ORGANIC-MATTER; MOISTURE CONTENTS; N-MINERALIZATION; DECOMPOSITION; PHOSPHORUS; SILAGE; PLANT; PH; IMMOBILIZATION; FERTILIZATION;

D O I：

10.1016/j.scienta.2015.06.034

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

Vegetable crop residues aid in maintaining soil quality and fertility, but pose a high risk of N-losses during autumn. Removal and conservation of these residues followed by a timely reapplication in spring may aid in synchronizing nutrient demand and availability. Crop residues of four vegetables were co-ensilaged with maize straw in a 1:1 ratio on volume base. Silage of leek and white cabbage were incubated with soil for measuring C and N mineralization and N fertilizer replacement value (NFRV). Vegetable crop residue silage promoted microbial activity when reapplied to the soil. This led to a temporary N immobilization up to 30% of the applied N after 14 days. A limited remineralization of up to +4% took place after 115 days which was confirmed by the positive NFVR. Nitrogen (N) losses during co-ensilage of vegetable crop residues were small and may help reduce N losses in intensive vegetable crop rotations during winter. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：311 / 319

页数：9

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