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http://dx.doi.org/10.17137/korrae.2019.27.1.49

Investigation of an Optimum Application Rate of Blended Biochar Pellet as Slow Release Fertilizer during Cabbage Cultivation  

Kim, HuiSeon (National Academy of Agricultural Science, Rural Development administration, Department of Bio-Environmental Chemistry, Wonkwang University)
Yun, SeokIn (Department of Bio-Environmental Chemistry, Wonkwang University)
Jang, Eunsuk (Department of Climate Change and Agro-ecology, National Institute of Agricultural Sciences)
Shin, JoungDu (Department of Climate Change and Agro-ecology, National Institute of Agricultural Sciences)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.27, no.1, 2019 , pp. 49-56 More about this Journal
Abstract
This experiment was conducted to select an optimum application rate of blended biochar pellet as slow release fertilizer during cabbage cultivation. The blended biochar pellet made with a combination(4:6) of biochar and pig manure compost with unloading N, P, K solutions for adjusting about 9% of total nitrogen(TN). The treatments were consisted of the control as recommended application rates for cabbage cultivation in National Institute of Agricultural Sciences, N 40%, N 40% and 0.07M MgO and N 60 % of the blended biochar pellet, respectively, based on nitrogen application of recommended rates to cabbage cultivation. Changes of $NH_4-N$, $NO_3-N$, $P_2O_5$ and $K_2O$ concentrations in the soil and growth characteristic and yield components were investigated and observed during the cabbage cultivation. The experimental result shown that contents of $NH_4-N$, $NO_3-N$ and $K_2O$ of soil in the N 40% were significantly difference(p<0.01) with the control. $P_2O_5$ concentrations of soil in the N 40% were highest among the treatments. The fresh weight per cabbage in the N 40% was not significantly different(p>0.05) from the control, but in the N 40% and 0.07M MgO and N 60% was lower than that of the control. It was considered that an optimum blended biochar application rate for cabbage cultivation was 40% of recommended nitrogen application.
Keywords
Biochar pellet as slow release fertilizer; optimum application rate; cabbage;
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Times Cited By KSCI : 5  (Citation Analysis)
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