Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Effect of Homemade Liquid Fertigation on Growth and Fruit Characteristics of Cherry Tomatoes

자가제조 액비 관주 처리가 방울토마토의 생장과 과실특성에 미치는 영향

  • Received : 2019.12.03
  • Accepted : 2020.01.22
  • Published : 2020.03.30
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Abstract

The study was compared for growth and yield of cherry tomato (Lycopersicon esculentum var. cerasiforme) crops as affected by various homemade liquid fertilizer (LF), commonly applied in the environmentally friendly farmhouses. LF treatment included UT (untreatment, water), OC (oil cake), BF (bone+fish meal), FA (fish amino meal), SO (sesame oil meal), and SF (starfish). Seasonal pH and EC in SO- and SF-LF rapidly decreased at 30 days after the storage, which were the highest EC of 0.6 - 0.8 dS/m, followed by BF-LF with 0.4 dS/m EC. T-N concentration in LF was the highest on the SF (0.0062%), followed by SO (0.0059%) and BF materials (0.0030%), which were all the great for the K concentration in the LF. P and Ca concentrations were the highest on the FA-LF, with the highest Mg concentration observed on the vegetable SO-LF. Soil EC was the highest on the SF-LF plots of 0.74 dS/m, with no significant differences between the treatments observed on the macro-nutrient concentrations in the soil and leaf. Leaf dry weight, leaf temperature, stem diameter, and plant height were investigated at once per 15 days. UT-LF reduced the leaf dry weight at all the measurement time while the plant height was low at an initial measurement but increased and similar to the other homemade LF treatments at a later measurement. Fruit yield and average fruit weight were the lowest on the UT-LF plots at 75 days after fertigation. Fruit diameter was increased by the BF-LF and SF-LF, with the highest fruit soluble solid contents and fruit coloring observed on the FA-LF. BF-LF maintained high fruit firmness.

본 연구는 친환경 토마토(Lycopersicon esculentum var. cerasiforme) 농가에서 대표적으로 자가 제조되고 있는 액비를 노지에 관주하였을 때 생장과 수량에 어떠한 영향을 미치는지를 구명하기 위하여 수행되었다. 처리는 무처리(물), 유박, 골분+어분, 생선아미노산, 깻묵, 불가사리 액비를 포함하였다. 깻묵과 불가사리 액비의 시기별 pH는 보관 30일 이후에 크게 감소하였고 두 자재의 EC는 0.6~0.8 dS/m으로 가장 높았고 골분+어분액비도 0.4 dS/m 전후로 높은 수준이었다. 액비의 전질소 농도는 불가사리 액비가 0.0062%로 가장 높았고 깻묵(0.0059%) > 골분+어분(0.0030%)순이었고 칼륨도 위의 세 가지 액비에서 가장 높았다. 액비의 인산과 칼슘은 생선아미노산 자재에서 가장 높았고 마그네슘은 식물성인 깻묵 자재에서 유의성 있게 높게 나타났다. 토양 EC는 불가사리 액비 처리구에서 0.74 dS/m로 가장 높았지만 토양과 잎의 대량 무기성분 농도는 처리 간에 차이가 관찰되지 않았다. 잎의 건물중과 엽온 및 줄기의 직경과 초장을 15일에 한 번씩 조사한 결과, 잎 건물중은 시기별로 무처리구에서 대부분 낮았고 초장도 생육 초기에 무처리구에서 가장 작았지만 후기에는 자가제조 액비와 비슷한 수준이었다. 과실수량과 평균과중은 무처리구에서 처리 후 75일 까지 유의성 있게 낮았다. 과실횡경은 골분+어분과 불가사리 액비 처리로 가장 증가하였고 과실 당도와 착색은 생선아미노산 액비구에서 가장 향상되었다. 과실경도는 골분+어분 처리에서 가장 높았다.

Keywords

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