http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김양민,이정태,Mavis Badu Brempong,백계령 한국토양비료학회 2023 한국토양비료학회지 Vol.56 No.4
Fertilizer application is a major Kimchi cabbage production factor, which has been adopted historically to increase yields. However, conventional fertilizer (CF) use is associated with severe environmental concerns due to its nutrient release pattern and nutrient loss potential. Split applications of CF during the cultivation period also incurs extra labour costs. Slow release fertilizer (SRF),on the other hand, is applied one-time, hence it does not require extra labour, as it slowly releases nutrients over a span of time allowing nutrient release to synchronize with critical crop nutrient demand periods. It has been suggested as an alternative to CF to curb the environmental menace. In our study, we compared the effect of CF and SRF on soil nitrogen (N) dynamics, Kimchi cabbage yield and residual soil chemical properties in the growing seasons of 2021 and 2022 at the Highland Agriculture Research Institute in the Gangwon State Government, under rain-fed conditions. The CF resulted in high soil NH4 + and NO3 - concentrations during the last period of cultivation, however, SRF showed a slow increase pattern of the nutrients up to the middle of the cultivation period and then a decrease till the harvest time. Kimchi cabbage yields were similar under CF and SRF in 2021 (43 and 48 Mg ha-1 respectively) and 2022 (81 and 79 Mg ha-1 respectively). The CF left the highest residual soil NH4 + and NO3 - concentrations in 2021 (12 and 24 mg kg-1) and 2022 (24 and 22 mg kg-1). Considering that similar yields were affected by CF and SRF, it could be inferred that more soil N from CF were subject to losses and potential environmental concerns, as CF affected higher soil N concentrations during the growing seasons and after harvest. Holding all other crop production factors constant, SRF has an advantage over CF in terms of saving labour costs and potentially protecting the environment.
Evaluating Soil Loss in a Kimchi Cabbage Cropping System in the Highlands of Gangwon, Korea
김양민,이정태,Mavis Badu Brempong,백계령 한국토양비료학회 2023 한국토양비료학회지 Vol.56 No.4
Evaluating Soil Loss in a Kimchi Cabbage Cropping System in the Highlands of Gangwon, Korea