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Effect of mulch and liquid organic fertilizer on shallot production (Allium cepa)
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This study evaluated how different mulch types and liquid organic fertilizer dosages affect shallot yield and soil health using a factorial field experiment. Rice husk mulch combined with 1,500 L/ha of liquid organic fertilizer produced the highest bulb yield, soil microbial populations, and peroxidase enzyme activity, outperforming conventional plastic mulch treatments.
Shallot (Allium cepa) is an economically valuable and highly nutritious crop whose productivity can be increased through optimal cultivation practices. This study investigated the combined effects of mulch and liquid organic fertilizer (LOF) on onion yield and performance. A factorial randomized block design (RCBD) was used consisting of two factors, namely mulch type (no mulch, black and silver plastic mulch, rice husk mulch, and shallot skin mulch) and LOF dosage (no LOF, 1,000 L/ha, and 1,500 L/ha). Data were analyzed using Least Significant Difference (LSD) and Duncan's Multiple Range Test (DMRT) at α = 5%. The application of rice husk mulch and LOF at a dose of 1,500 L/ha resulted in the highest number of bulbs, bulb diameter, wet weight, dry weight, soil microbial population, and peroxidase enzyme activity among all treatments. This study demonstrates that rice husk mulch and LOF at a dose of 1,500 L/ha can significantly enhance shallot production. Additionally, the findings indicate that the use of rice husk mulch and LOF at a dose of 1,500 L/ha can boost soil microbial population and increase peroxidase enzyme activity.
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Researchers compared biodegradable mulch films of different thicknesses against conventional polyethylene film for garlic cultivation. They found that a 0.008 mm biodegradable film matched or exceeded the conventional film in crop yield, quality, and soil health, while also improving soil enzyme activity and nutrient availability. The study suggests that biodegradable mulch is a viable alternative to polyethylene, helping farmers avoid the long-term soil contamination caused by conventional plastic film residue.
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Researchers tested three organic liquid mulching (hydromulching) formulations — rice hulls, wheat straw, and mushroom substrate — against polyethylene film and bare soil controls in artichoke cultivation, measuring soil physicochemical and biological properties alongside crop yield and head quality. Hydromulching treatments, especially rice hull cover, increased soil organic matter, organic carbon, and moisture while improving artichoke yield and quality compared to bare soil.
Effects of Biodegradable-Film Mulch and Residue on the Growth and Yield of Pepper and Onion Cultivated under a Two-year Crop Rotation Scheme
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A two-year Korean field experiment compared polyethylene and three biodegradable film mulches in pepper and onion crop rotations, finding significant differences in degradation rates and soil moisture between film types with minimal effects on crop mineral nutrition or yield. As biodegradable mulch films break down, they generate microplastic fragments that enter agricultural soils, making it critical to understand their degradation behavior and environmental persistence.
The use of hydromulching increases yield and quality of artichoke (Cynara cardunculus var. scolymus) by improving soil physicochemical and biological properties
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Researchers tested three organic hydromulching treatments (rice hulls, wheat straw, mushroom substrate) against polyethylene mulching and bare soil controls in artichoke production, assessing effects on soil physicochemical properties, plant water status, and crop yield and quality. Hydromulched soils showed increased organic matter, moisture, and mineral content, with all mulching treatments improving plant water relationships and physical quality parameters compared to bare soil, supporting hydromulching as a sustainable alternative to plastic mulch.
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Researchers compared five mulching strategies in organic greenhouse eggplant production and found that black polyethylene mulch produced the highest soil quality index and yielded 29.5 t/ha more than other treatments, while compost mulch best enhanced soil nutrients and straw mulch supported the greatest microbial diversity.
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