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Effects of Mulching on Soil Properties and Yam Production in Tropical Region

Author

Listed:
  • Shamal Shasang Kumar

    (Crop Research Division, Ministry of Agriculture & Waterways (MOA & W), Nausori P.O. Box 77, Fiji)

  • Owais Ali Wani

    (Division of Soil Science and Agricultural Chemistry, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Wadura 193201, Jammu and Kashmir, India)

  • Binesh Prasad

    (Crop Research Division, Ministry of Agriculture & Waterways (MOA & W), Nausori P.O. Box 77, Fiji)

  • Amena Banuve

    (Land Resources Planning and Development Division, Ministry of Agriculture & Waterways (MOA & W), Raiwaqa, Suva P.O. Box 77, Fiji)

  • Penaia Mua

    (Crop Research Division, Ministry of Agriculture & Waterways (MOA & W), Nausori P.O. Box 77, Fiji)

  • Ami Chand Sharma

    (Crop Research Division, Ministry of Agriculture & Waterways (MOA & W), Nausori P.O. Box 77, Fiji)

  • Shalendra Prasad

    (Crop Research Division, Ministry of Agriculture & Waterways (MOA & W), Nausori P.O. Box 77, Fiji)

  • Abdul Raouf Malik

    (Division of Fruit Science, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar 190025, Jammu and Kashmir, India)

  • Salah El-Hendawy

    (Department of Plant Production, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia)

  • Mohamed A. Mattar

    (Department of Agricultural Engineering, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia)

Abstract

Mulching plays a pivotal role in modern sustainable agriculture, offering a versatile solution to enhance soil quality, improve soil health, conserve resources, and optimize crop performance. This study examined the effects of various mulching materials on soil properties, seasonal variations in soil and environmental variables, and yam production in a tropical environment, with a focus on sustainable agricultural practice. We applied a range of mulch treatments, including black polythene, weedmat, sugarcane straw, organic compost, cowpea-live, juncao grass, sawdust, and a control with no mulch. The results indicated that the organic compost mulch significantly increased soil pH and soil electrical conductivity (EC). The control treatment resulted in the highest soil moisture content, while the highest soil temperature were recorded for the black polythene and organic compost mulch treatments. The organic compost mulch enhanced the soil organic carbon (SOC) content, soil available phosphorus (SAP) content, and soil exchangeable calcium (SECa) content. The weedmat mulch showed the highest soil exchangeable potassium (SEK) content, and the control treatment exhibited the highest soil exchangeable magnesium (SEMg) and sodium (SENa) content. In terms of micronutrients, the sawdust mulch and black polythene mulch significantly increased soil exchangeable iron (SEFe) and copper (SECu) levels, respectively. Notable seasonal variations in soil pH, temperature, and environmental humidity were observed during the crop period. The soil pH fluctuated from slightly acidic levels in August 2023 to neutral levels in October, and then decreased to slightly acidic levels in early 2024 before stabilizing by March 2024. The soil temperature peaked in November and dropped in January, while the environmental humidity ranged from 48.25% in December to 76.33% in February. The study demonstrated that the organic compost mulch stood out as an advantageous choice because of its capacity to enhance the soil’s properties and offer a balanced nutrient mix, making it particularly beneficial for yam cultivation. It also proved to be a reliable and balanced option to enhance soil quality with stable soil quality indices (SQIs). The weedmat mulch proved to be highly effective in enhancing yam growth and productivity. The weedmat mulch is the most profitable and cost-effective option for yam cultivation, providing the highest net returns and strong financial viability. This study emphasizes the value of choosing the right mulching materials to support soil quality, crop productivity, and economic returns in tropical settings, making strides toward more sustainable farming practices.

Suggested Citation

  • Shamal Shasang Kumar & Owais Ali Wani & Binesh Prasad & Amena Banuve & Penaia Mua & Ami Chand Sharma & Shalendra Prasad & Abdul Raouf Malik & Salah El-Hendawy & Mohamed A. Mattar, 2024. "Effects of Mulching on Soil Properties and Yam Production in Tropical Region," Sustainability, MDPI, vol. 16(17), pages 1-25, September.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:17:p:7787-:d:1473124
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    References listed on IDEAS

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