Effects of Nutrient Amendments on Fermented Pig Manure Liquid Fertilizer for Hydroponic Lettuce (Lactuca sativa L.) Cultivation

자료유형: 학술저널

저자정보: 이원경 (강원특별자치도농업기술원),  전신재 (강원농업기술원), 원재희 (강원도농업기술원)

저널정보: 강원대학교 농업생명과학연구원(구 농업과학연구소) >  농업생명환경연구 > 농업생명환경연구 제36권 제4호

KCI등재

발행연도: 2024.12

수록면: 502 - 510 (9page)

DOI: https://doi.org/10.22698/jales.20240038

ABSTRACT

The modified pig manure fermented liquid fertilizer (MPMLF) demonstrated improved characteristics compared to the pig manure fermented liquid fertilizer (PMLF). Specifically, the ion concentrations of Na, K, a nd C l were l ower i n MPMLF, w hile t he c oncentrations of ammonium N (NH4-N), nitrate N (NO3-N), Ca, and P were higher, effectively addressing ion imbalances. The impact of nutrient amendments to the PMLF was evident from the early growth stages. The fresh weights of all three lettuce varieties (Ezabel, Ezatrix, and Seonpungpochap) were doubled in the MPMLF treatment compared to the PMLF treatment 28 days after transplanting. In the drainage, the ion concentrations of NO3-N, P, and Ca were initially higher in the MPMLF treatment but decreased as plant growth progressed, ultimately falling below the appropriate concentration levels. Similarly, ion concentrations in the lettuce plant sap were 2.5 times higher in the MPMLF treatment than in the PMLF treatment across all varieties.

Furthermore, the NO3-N concentrations in the plant sap across all treatments were below 800mg/kg, indicating the potential to produce lettuce with low NO3-N levels. These results highlight the potential of MPMLF to enhance the utilization of livestock waste, such as pig manure, in agriculture. Further studies are recommended to optimize the use of livestock waste for sustainable agricultural practices.

Keywords: 

Fertilizer supplement, Nitrate concentration, Nutrient amendment