Effects of organic amendments and cover crops on soil characteristics and potato yields

IF 1.7 4区农林科学 Q2 AGRONOMY

Acta Agriculturae Scandinavica Section B-Soil and Plant Science Pub Date : 2023-01-23 DOI:10.1080/09064710.2023.2165963

T. Rittl, F. Grønmyr, Ivar Bakken, A. Løes

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引用次数: 1

Abstract

ABSTRACT Intensive potato production may reduce the soil organic matter content (SOM), which may impact several soil functions and increase the incidence of potato diseases. We examined if cover crop and addition of organic materials may counteract these effects. Organic materials were one application of biochar mixed with liquid digestate (BLD); solid digestate (SD); or farmyard manure (FYM); with or without winter rye as cover crop, in a field with regular potato growing. Organic amendment increased SOM, especially for FYM and BLD, while cover crop did not affect SOM. Yet, cover crop increased tuber yields in the second year, and reduced the severity of potato diseases by 10% in post-harvest potatoes in both years. In the second year, the number of marketable potatoes after storage increased by 37% with cover crop. Organic amendments did not affect potato yield or quality, but the proportion of marketable potatoes tended to be higher in the amended soil. By lab incubation, BLD showed the largest potential for SOM storage, up to 32 years, followed by FYM and SD. Cover crops and organic amendments is recommended in potato production, especially for early potatoes where there is sufficient time after harvest to establish a good cover crop.

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有机改良剂和覆盖作物对土壤特性和马铃薯产量的影响

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来源期刊

Acta Agriculturae Scandinavica Section B-Soil and Plant Science 农林科学-农艺学

CiteScore

4.40

自引率

0.00%

发文量

审稿时长

2.3 months

期刊介绍： Acta Agriculturæ Scandinavica Section B publishes original research in applied soil and plant science with special attention given to to crop production in agri- and horticultural systems. We welcome manuscripts dealing with: Climate smart and sustainable crop production systems Water and nutrient efficiency Soil conservation and productivity Precise agriculture systems Applications of bio- and nanotechnology Digitalisation and robotics Soil-plant interactions Acta Agriculturæ Scandinavica, Section B – Soil & Plant Science forms part of a series of titles published on behalf of the Nordic Association of Agricultural Science (NJF). The series also includes Section A - Animal Science .