Effect of Application of Swine Slurry on Productivity of Sorghum × Sorghum Hybrid and Soil Environment in Reclaimed Land

Abstract

This experiment was carried out to investigate the effect of application of swine slurry (SS) and slurry composting-biofilteration liquid fertilizer (SCB) on productivity of sorghum×sorghum hybrid (SSH) and soil environment in reclaimed land of Sukmoon in Korea. Dry matter (DM) yields of SSH in the treatments of SS and chemical fertilizer (CF) were higher than those of in SCB treatment in reclaimed land, but DM yields in SS and CF did not show a significant difference as compared to SCB. Nutritive values of SSH were not different among CF, SS and SCB. In soil samples collected at the end of the experiment, the concentration of organic matter was significantly increased by SS and SCB as compare to that at the beginning of the experiment (P<0.05), whereas the concentration of total nitrogen was not affected by SS and SCB. To investigate the moisture content of soil, the soils were collected from three layers; surface (0~5 cm), intermediate (10~15 cm), and deep (20~25 cm) layer. The moisture contents of soils increased according to the soil depth and the soil moisture was immediately affected by the amount of rainfall. Therefore, we suggest that the cultivation of SSH using SS in reclaimed land is possible and that additional nitrogen fertilizer was surely applied in case of application of SCB to cultivate SSH.

Annual Changes in Soil Physicochemical Properties and Kenaf (Hibiscus cannabinus L.) Growth When Returning Grown Kenaf as Organic Matter in Reclaimed Land

“…유기물이 토양 내에서 분해되는 비율이 점차 증가함에 따라 토양경도가 큰 폭으로 감소하였는데 유기물 투입 전 (2019년) 24.5 kg cm -2 이었던 토양경도가 무투입 처리에서 작물 재배의 영향으로 약간 감소하기는 하였으나 그 폭이 크지 않았던 반면 파쇄 케나프 투입 처리에서는 투입 1년차 (2020년)에 19.6 kg cm -2 로 20% 감소하였으며 2년차 (2021년)에도 19.1 kg cm -2 로 투입 후 2년 연속 감소하였다. 이 는 액비와 녹비작물 투입 후 수수 × 수단그라스 재배에서 간척지 토양물리성이 개선되는 경향과 유사하였다(Choi et al, 2011;Yang et al, 2012). 유기물 투입 없이 표준시비한 처리에서는 토양 경도가 1년차 22.6 kg cm -2 와 2년차 22.1 kg cm -2 로 감소하기는 하였으나 역시 천연유기물원 처리에 비해서는 감소폭이 유의하게 적었다 (Fig.2).…”

Effects of Gypsum and Fresh Cattle Manure on Physico-chemical Properties of Soil and Yield of Forage Crop in Hwaong Reclaimed Land

“…------------mg kg -1 ------------------------cmolc kg -1 ------------% (Koo et al, 1998;Baek et al, 2009;Choi et al, 2010;Jung et al, 2011;Choi et al, 2011 (Sparks, 1995;Shainberg, 1998;Dontsova, 2002;Lebron, 2002;Baek et al, 2008 - Table 6, Table 7과 같다. 생우분 시용 후 침출수 중 NO 3 -N 용탈량은 석고+생우분…”

Effect of Slurry Composting and Bio-filtration (SCB) by Fertigation on Soil Chemical Properties and Growth of Red Pepper (Capsicum annuum L.)

“…그러나 최근 연 구 동향은 친환경농법과 농업환경 부하 경감을 최소화한 SCB 액비 활용 연구가 중심을 이루고 있다. 고품질 유기 벼 생산과 토양 양분 집적평가 Ryoo et al, 2012), 논 물관리를 통한 수계 부하 경감 , 간척지에서 녹비재배와 혼용한 옥수수, 교잡수수, 청보리 등 사료작물 적응성 연구 (Choi et al, 2011;Jo et al, 2010;Shin et al, 2014), 과원에서의 배와 복숭아에 대 한 수체 생장 및 시비 효율 등에 효과적임을 시사했다 (Lee et al, 2012;Lee et al, 2014;. Ham et al (2009) Kang et al, 2010).…”