RESEARCH ON THE PRODUCTION OF BIOCHAR FROM COCONUT FIBER AND SOYBEAN STALKS TO ENHANCE SOIL QUALITY AND BOOST CORN YIELD IN NORTHERN VIETNAM
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Abstract
Biochar, a byproduct of biomass pyrolysis, possesses a high surface area and cation exchange capacity. Corn, being a crop that extracts significant nutrients from the soil, contributes to the rapid depletion of soil fertility, especially under monoculture crop rotations. To sustain soil fertility, it is imperative to implement a suite of measures aimed at its preservation. The utilization of biochar as a means to enhance soil quality represents a novel approach that has seen limited adoption in Vietnam.
We undertook a study to assess the soil amendment potential and investigate the impact of biochar derived from coconut fiber and soybean stalks on the growth, development, and yield of the NK4300 corn variety. The research was conducted during the 2019 winter cropping season in Northern Vietnam, focusing on the NK4300 corn variety, a product of Syngenta Vietnam. The timeline for biochar material preparation spanned from August 25, 2019, to September 5, 2019, with corn seed sowing occurring on September 15, 2019.
The experimental results indicated that the utilization of biochar for the NK4300 corn variety led to notable enhancements in leaf area, leaf area index, and the effective percentage of corn compared to non-utilization. Yields of the NK4300 corn variety increased by 2.9% to 15.4% with the application of biochar.
This research aims to produce biochar from coconut fiber and soybean stalks to enhance soil fertility and consequently augment corn yield. The experiment demonstrated that the highest yield of the NK4300 corn variety reached 58.4 c/ha, achieved through the application of 150 kg N + 90 kg P2O5 + 90 kg K2O + 1 t of biochar/ha. Utilizing biochar resulted in a yield increase of 7.8 c/ha compared to its non-utilization
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References:
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