Influence of mulch and poultry manure application on soil temperature, evapotranspiration and water use efficiency of dry season cultivated okra

IF 7.3 1区农林科学 Q1 ENVIRONMENTAL SCIENCES

International Soil and Water Conservation Research Pub Date : 2023-06-01 DOI:10.1016/j.iswcr.2022.09.003

Mutiu Abolanle Busari, Ganiyu Olawale Bankole, Idris Adebanjo Adiamo, Rasaq Olayiwola Abiodun, Olanrewaju Hammed Ologunde

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引用次数: 2

Abstract

Sustainable vegetable production especially during the dry season requires adequate conservation of soil water. This study was conducted to evaluate the sole and interactive effects of mulching (M) and poultry manure (PM) application on soil temperature (ST), crop evapotranspiration (ETc) and water use efficiency (WUE) of okra. The experiment was a Randomized Complete Block Design (RCBD) with three replicates. The treatments were M at 0 and 6 t ha⁻¹ and PM at 0, 10 and 20 t ha⁻¹. Soil temperature was measured using digital thermometer while ETc was determined by water depletion method using a Time Domain Reflectometer. Irrigation at field capacity was applied manually at 2-day intervals. Independent application of mulch significantly lowered ST while joint application of 20 t ha⁻¹ PM (PM20) and M significantly (p ≤ 0.05) reduced ST at 5 cm and 10 cm soil depth compared with the unmulched plots in both seasons. Application of 10 t ha⁻¹ PM (PM10) without M recorded the highest ETc (43.7 mm), while joint application of PM20 and M reduced ETc by about 93% compared with PM10 only. Okra used water most efficiently when PM20 was applied under mulched plot. There was 62.2% increase in WUE under mulched plots compared with the control while the residual effect of PM10 and M significantly increased WUE by 65.5%. It was evident that M alongside application of PM is a good strategy for regulating ST, moderating ETc and increasing okra WUE, especially during dry season farming.

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地膜和禽粪对旱季栽培秋葵土壤温度、蒸散量和水分利用效率的影响

可持续的蔬菜生产，特别是在旱季，需要充分保护土壤水分。本研究旨在评估覆盖（M）和施用家禽粪便（PM）对秋葵土壤温度（ST）、作物蒸散量（ETc）和水分利用效率（WUE）的单独和相互作用。该实验采用随机完全块设计（RCBD），有三个重复。处理为0和6 t ha−1的M和0、10和20 t ha−2的PM。土壤温度用数字温度计测量，而ETc用时域反射计通过水分消耗法测定。田间灌溉采用人工灌溉，间隔2天。与两个季节的未覆盖地块相比，单独施用覆盖物显著降低了ST，而联合施用20 t ha−1 PM（PM20）和M显著降低了5cm和10cm土壤深度的ST（p≤0.05）。施用不含M的10 t ha−1 PM（PM10）的ETc最高（43.7 mm），而联合施用PM20和M与仅施用PM10相比，ETc降低了约93%。秋葵对水的利用效率最高的是在覆膜地下施用PM2.5。与对照相比，覆膜地的水分利用效率提高了62.2%，而PM10和M的残留效应使水分利用效率显著提高了65.5%。

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来源期刊

International Soil and Water Conservation Research Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

12.00

自引率

3.10%

发文量

171

审稿时长

49 days

期刊介绍： The International Soil and Water Conservation Research (ISWCR), the official journal of World Association of Soil and Water Conservation (WASWAC) http://www.waswac.org, is a multidisciplinary journal of soil and water conservation research, practice, policy, and perspectives. It aims to disseminate new knowledge and promote the practice of soil and water conservation. The scope of International Soil and Water Conservation Research includes research, strategies, and technologies for prediction, prevention, and protection of soil and water resources. It deals with identification, characterization, and modeling; dynamic monitoring and evaluation; assessment and management of conservation practice and creation and implementation of quality standards. Examples of appropriate topical areas include (but are not limited to): • Conservation models, tools, and technologies • Conservation agricultural • Soil health resources, indicators, assessment, and management • Land degradation • Sustainable development • Soil erosion and its control • Soil erosion processes • Water resources assessment and management • Watershed management • Soil erosion models • Literature review on topics related soil and water conservation research