Influence of Fertilization Treatment using Organic Amendment based on Soil Testing on Plant Growth and Nutrient use Efficiency in Cabbage

Abstract

BACKGROUND:In this study, in order to verify the effects of supplemented organic amendment fertilizers recommended by the soil testing on cabbages, we used various amounts of organic amendment fertilizers. The amount of organic amendment fertilizers was decided by calculating each ratio of inorganic nitrogen, phosphorus, and potassium based on the recommended fertilizer composition. METHODS AND RESULTS:The cabbages subjected to treatments 1 and 2 showed similar or greater leaf colors (SPAD values), head heights, head widths, head weight, soil organic matter content, nitrate-nitrogen level, and conductivity after harvest, when compared with cabbages treated with chemical fertilizers. The phosphorus and potassium fixation in the soil were higher in the plot where cabbages were treated with chemical fertilizers, and the nutrient use efficiency was greater in the plots with organic amendments and mineral addition. CONCLUSION:The treatments 1 and 2 that were supplemented with 180-200% of nitrogen, 100-130% of phosphorus, and 185-250% of potassium in comparison to chemical fertilizers, applied by the inorganic ratios of nitrogen, phosphorus, and potassium can be used as organic amendment fertilizers for cabbages.

Assessment of Lettuce Yield and Soil Organic Carbon Fraction Distribution under Different Types of Organic Matter in South Korea

“…이러한 결과는 퇴비와 같은 유기물원을 투입할 시 무기화과정을 통해 작물이 흡수할 수 있는 양분 형태가 공급되어졌기 때문이라고 판단된다 (Lim et al, 2011;Kim et al, 2018aKim et al, , 2019Kim et al, , 2020bKim et al, , 2021. (Lee et al, 1993;Lim et al, 2020). Kim et al, 2000;Lee et al, 2021b).…”