Assessing the synergistic impacts of poultry manure and biochar on nutrient-depleted sand and sandy loam soil properties and sweet potato growth and yield

IF 1.6 4区农林科学 Q1 Agricultural and Biological Sciences Experimental Agriculture Pub Date : 2022-11-28 DOI:10.1017/S0014479722000497

T. Agbede, Adefemi Oyewumi, A. Adekiya, Ojo Vincent Adebiyi, Thomas Adebayo Abisuwa, J. O. Ijigbade, Catherine Temitope Ogundipe, S. Oladele, Opeyemi Olaogun, E. K. Eifediyi

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Abstract

Summary Poultry manure (PM) has been shown to boost crop productivity. However, little is known about its favorable interactions with wood biochar (B) on sweet potato (Ipomoea batatas L.) growth and yield, and soil qualities. Hence, a 2-year field trial was conducted in the southwest Nigeria at two locations (Owo – site A and Obasooto – site B) to co-apply PM and wood B as soil amendments to boost sweet potato productivity and soil quality. The experiment consisted of a 3 × 4 factorial layout with three replications. PM and B significantly reduced soil bulk density and improved porosity and moisture content with their rate of application when compared to the control. As PM and B applications increased from 0 to 10.0 t ha−1 and 0 to 30.0 t ha−1, respectively, soil chemical properties and sweet potato growth and tuber yield increased. Co-application of 10.0 t ha−1 PM and 30.0 t ha−1 B increased tuber yield by 220% compared to treatments without PM or B. Significant synergistic interactions between PM and B were observed for all parameters. In comparison with other treatments, co-applying PM and B to sweet potato soils is a viable sustainable option for increasing sweet potato productivity and soil sustainability.

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评估家禽粪便和生物炭对养分缺乏的沙壤土特性以及红薯生长和产量的协同影响

家禽粪便（PM）已被证明可以提高作物生产力。然而，人们对其与木材生物炭（B）对甘薯（Ipomoea batatas L.）生长、产量和土壤质量的有利相互作用知之甚少。因此，在尼日利亚西南部的两个地点（Owo–地点a和Obasuto–地点B）进行了为期2年的田间试验，以共同施用PM和木材B作为土壤改良剂，提高红薯生产力和土壤质量。该实验由3×4析因布局和三个重复组成。与对照相比，PM和B的施用速率显著降低了土壤容重，提高了孔隙率和含水量。随着PM和B的施用量分别从0增加到10.0 t ha−1和0增加到30.0 t ha−2，土壤化学性质、红薯生长和块茎产量都有所增加。与没有PM或B的处理相比，10.0 t ha−1 PM和30.0 t ha−1B的联合施用使块茎产量增加了220%。在所有参数下，PM和B之间都观察到显著的协同作用。与其他处理相比，在红薯土壤中共同施用PM和B是提高红薯生产力和土壤可持续性的可行可持续选择。

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来源期刊

Experimental Agriculture 农林科学-农艺学

CiteScore

2.50

自引率

6.20%

发文量

审稿时长

24 months

期刊介绍： With a focus on the tropical and sub-tropical regions of the world, Experimental Agriculture publishes the results of original research on field, plantation and herbage crops grown for food or feed, or for industrial purposes, and on farming systems, including livestock and people. It reports experimental work designed to explain how crops respond to the environment in biological and physical terms, and on the social and economic issues that may influence the uptake of the results of research by policy makers and farmers, including the role of institutions and partnerships in delivering impact. The journal also publishes accounts and critical discussions of new quantitative and qualitative methods in agricultural and ecosystems research, and of contemporary issues arising in countries where agricultural production needs to develop rapidly. There is a regular book review section and occasional, often invited, reviews of research.