Effect of biochar and plastic mulch on growth, yield, and yield attributing characteristics of spring maize (Zea mays L.)
https://doi.org/10.26832/24566632.2022.0704014
Abstract
Spring maize is an important crop to meet the growing demand for maize. Moisture stress is an important yield limiting factor during the dry spring period. Biochar and plastic mulch help in soil moisture conservation and might contribute to the growth and yield of maize. A field experiment was conducted to evaluate the effects of biochar application and plastic mulch on growth, yield, and yield attributing characteristics of spring maize (Zea mays L.) in a sandy loam soil at Rampur, Chitwan, Nepal in 2018. The experiment was laid out in a split-plot design (SPD) with three replications. The Main plots were allocated to the mulching (mulching, and no mulching) while the Subplot was to the biochar rates of 0 t/ha, 5 t/ha, 15 t/ha, and 25 t/ha. There were twenty-four plots of each plot size 4.8 × 1.5 m2. The grounded biochar passed through a 1 mm sieve and was applied in the well-prepared plots two weeks before seed sowing. The maize seeds were sown at 60 cm row to row and 25 cm plant to plant distance. There were no significant effects due to both factors on maize seed emergence, plant height, number of leaves per plant, leaf area index, root length, dry matter content, stover yield, and yield attributes. But the yield was significantly influenced by their interactions. Significantly highest grain yield (2.58 t/ha) was obtained from 25 t/ha with plastic mulch followed by plastic mulch with 15 t/ha biochar (2.06 t/ha) and the least was recorded from control plots (1.19 t/ha). From the result, it can be concluded that the application of a higher biochar rate of 25 t/ha with plastic mulch contributes to a higher yield of spring maize.
Keywords:
Biochar, Mulching, Maize, Growth, YieldDownloads
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