Soil fertility and pomelo yield influenced by soil conservation practices

IF 1.8 Q2 AGRICULTURE, MULTIDISCIPLINARY

Open Agriculture Pub Date : 2023-01-01 DOI:10.1515/opag-2022-0181

Tran Van Dung, Le Van Dang, Ngo Phuong Ngoc, N. N. Hung

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引用次数: 2

Abstract

Abstract Exchangeable cations and soil nutrients leach out/lost in the raised bed soils system through irrigation water and rainwater. Cover crops or crop residue mulching are considered sustainable agricultural measures because they prevent soil degradation and compaction and increase the soil ecological diversity. However, the impact of these on soil quality in fruit orchards in the Vietnamese Mekong Delta is not well studied. The present work aimed to assess the effect of cover crops (grass, pinto peanut) and rice straw mulching on change in soil chemical properties and productivity of pomelo. The 3-year (2019–2021) field experiment was conducted at Phu Huu Commune, Chau Thanh District, Hau Giang Province, Vietnam. Four treatments, control (no-cover crop), grass cover crop, mulching with rice straw (MRS), and pinto peanut cover crop were used. Soil samples were collected from the depth of 0–20 and 20–40 cm for analyzing soil pH, total nitrogen (TN), total phosphorus (TP), available phosphorus (AP), and soil organic matter (SOM). Results showed that MRS or cover crop by pinto peanut significantly decreased soil acidity in the topsoil layer. Soil fertility properties (TN, TP, AP, and SOM) at the depth 0–20 cm were greatly improved after the application of the mulched rice straw and cover crop by legume, thus improving pomelo yield. Further study is required to understand the effects of the cover crop with pinto peanut and rice straw mulching on the physical and biological properties of soil as well as nutrient uptake of pomelo orchards.

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土壤保持措施对土壤肥力和柚子产量的影响

交换性阳离子和土壤养分通过灌溉水和雨水在垄沟土壤系统中淋失。覆盖作物或作物残茬覆盖被认为是可持续的农业措施，因为它们可以防止土壤退化和板结，增加土壤生态多样性。然而，这些因素对越南湄公河三角洲果园土壤质量的影响尚未得到充分研究。本研究旨在评价覆盖作物(草、花生)和水稻秸秆覆盖对柚子土壤化学性质和生产力的影响。为期3年(2019-2021年)的田间试验在越南后江省Chau Thanh区Phu Huu公社进行。采用对照(无覆盖)、草覆盖、秸秆覆盖和平头花生覆盖4种处理。在0 ~ 20和20 ~ 40 cm深度采集土壤样品，分析土壤pH、全氮(TN)、全磷(TP)、速效磷(AP)和土壤有机质(SOM)。结果表明，MRS或平头花生覆盖作物显著降低了表层土壤酸度。水稻秸秆覆盖和豆科作物覆盖后，0 ~ 20 cm土壤肥力特性(TN、TP、AP、SOM)显著改善，从而提高了柚产量。平头花生和水稻秸秆覆盖作物对土壤物理生物学特性及柚子园养分吸收的影响有待进一步研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Open Agriculture AGRICULTURE, MULTIDISCIPLINARY-

CiteScore

3.80

自引率

4.30%

发文量

审稿时长

9 weeks

期刊介绍： Open Agriculture is an open access journal that publishes original articles reflecting the latest achievements on agro-ecology, soil science, plant science, horticulture, forestry, wood technology, zootechnics and veterinary medicine, entomology, aquaculture, hydrology, food science, agricultural economics, agricultural engineering, climate-based agriculture, amelioration, social sciences in agriculuture, smart farming technologies, farm management.