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<p>Guava is valued for its diverse nutritional benefits and its adaptability to various agro-climatic conditions. Effective soil management practices, such as mulching, are crucial for improving growth and productivity. This study aimed to evaluate the effects of both organic and inorganic mulches on soil physicochemical properties, microbial activity and growth performance under guava nursery conditions. A field experiment was conducted from 2020 to 2022 for two years to evaluate, on soil fertility and plant performance, utilizing eight different treatments: paddy straw mulch (PSM), coco mulch (CM), biodegradable plastic (BP), black weed mat (BWM), green weed mat (GWM), black polyethylene mulch (BPM), silver-grey polyethylene mulch (SGPM) and an unmulched control, all arranged in randomized block design. The BWM treatment significantly enhanced vegetative growth, recording the highest values for leaf area (28.48 cm²), leaf count (39.33), stem circumference (1.21 cm), shoot count (8.67), survival rate (90.74%) and buddable plants (84.73%). The GWM treatment recorded the highest chlorophyll content, including total chlorophyll (1.95 mg g⁻¹), chlorophyll a (0.86 mg g⁻¹) and chlorophyll b (0.82 mg g⁻¹). PSM significantly improved soil biological activity and nutrient status, exhibiting the highest soil dehydrogenase activity (5.27 µg TPF g⁻¹ h⁻¹), microbial populations, soil NPK levels and leaf nutrient concentrations, along with the highest organic carbon (OC) content (0.34%). BWM is recommended for guava nursery production to improve vegetative growth, survival rates and buddability, while organic mulches, particularly PSM, are more effective in enhancing soil biological activity and nutrient dynamics.</p>

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Impact of Organic and Inorganic Mulches on Soil Physicochemical Properties and Growth Dynamics of Guava (Psidium Guajava L.) Seedlings

  • 期刊论文

  • 发表日期：

    2026年8月5日

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  • Kirandeep Kaur,
  • Parminder Singh,
  • Ayush Gupta,
  • Gagandeep Kaur,
  • Jaswinder Singh Brar

摘要

Guava is valued for its diverse nutritional benefits and its adaptability to various agro-climatic conditions. Effective soil management practices, such as mulching, are crucial for improving growth and productivity. This study aimed to evaluate the effects of both organic and inorganic mulches on soil physicochemical properties, microbial activity and growth performance under guava nursery conditions. A field experiment was conducted from 2020 to 2022 for two years to evaluate, on soil fertility and plant performance, utilizing eight different treatments: paddy straw mulch (PSM), coco mulch (CM), biodegradable plastic (BP), black weed mat (BWM), green weed mat (GWM), black polyethylene mulch (BPM), silver-grey polyethylene mulch (SGPM) and an unmulched control, all arranged in randomized block design. The BWM treatment significantly enhanced vegetative growth, recording the highest values for leaf area (28.48 cm²), leaf count (39.33), stem circumference (1.21 cm), shoot count (8.67), survival rate (90.74%) and buddable plants (84.73%). The GWM treatment recorded the highest chlorophyll content, including total chlorophyll (1.95 mg g⁻¹), chlorophyll a (0.86 mg g⁻¹) and chlorophyll b (0.82 mg g⁻¹). PSM significantly improved soil biological activity and nutrient status, exhibiting the highest soil dehydrogenase activity (5.27 µg TPF g⁻¹ h⁻¹), microbial populations, soil NPK levels and leaf nutrient concentrations, along with the highest organic carbon (OC) content (0.34%). BWM is recommended for guava nursery production to improve vegetative growth, survival rates and buddability, while organic mulches, particularly PSM, are more effective in enhancing soil biological activity and nutrient dynamics.