Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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The Effect of Composted Liquid Manure on the Growth of Zoysiagrass

가축분뇨 액비의 시비에 따른 한국 잔디의 생육에 미치는 영향

  • Received : 2014.11.13
  • Accepted : 2014.12.05
  • Published : 2014.12.30
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Abstract

This study was conducted to evaluate the effect of developed composted liquid manure(DSCB), which was produced by adding N, P, and K to composted liquid manure(SCB), on the growth of zoysiagrass. Two different N sources used in DSCB were ammonium sulfate(DSCB-A) and urea(DSCB-U), respectively. Fertilizer treatments were designed as follows; non-fertilizer (NF), control (CF; chemical fertilizer), DSCB-Al($200mlm^{-2}$ DSCB-A), DSCB-A2($250mlm^{-2}$ DSCB-A), DSCB-U ($250mlm^{-2}$ DSCB-U) and CF+SCB(CF+$250mlm^{-2}$ SCB). In zoysiagrass, turf color index, chlorophyll index, dry weight and nutrient content were measured. Turf color index and chlorophyll index in DSCB and SCB treatment were increased by 1~3% and 14~28% than those of NF, respectively, and in DSCB-A1, DSCB-A2 and CF+SCB increased by 7~12% than those of CF. As applied with DSCB and SCB, the dry weight of DSCB-A1 and DSCB-A2 was increased by 25% and 19% in than CF, respectively and their nitrogen uptake by 19% and 6%. Evaluated with turf quality and growth, DSCB-A1 was the best and the most efficient in all treatments. These results indicated that application of DSCB-A1 promoted turf quality and growth of zoysiagrass by stimulating a nitrogen uptake, so that it was expected to replace to chemical fertilizers.

본 연구는 SCB 저농도 액비에 질소, 인산, 칼리 성분을 첨가한 개량 SCB 액비(DSCB)의 시비에 따른 한국 잔디의 생육에 미치는 영향을 평가하기 위해 수행되었다. 처리구는 비료의 종류와 시비량에 따라 무처리구(NF), 화학비료를 시비한 대조구(CF), 유안으로 질소 성분을 보정한 DSCB를 80% 시비한 처리구 1(DSCB-A1), 유안으로 질소 성분을 보정한 DSCB를 100% 시비한 처리구 2(DSCB-A2), 요소로 질소 성분을 보정한 DSCB 처리구(DSCB-U) 그리고 대조구에 SCB를 시비한 처리구(CF+SCB)로 설정하여 엽색 지수, 엽록소 지수, 건물 중 및 잔디의 양분 함유량을 가지고 생육을 평가하였다. 엽색 지수와 엽록소 지수를 조사한 결과, NF보다 각각 1~3%와 14~28% 증가하였고, CF와 비교할 때, DSCB-A1, DSCB-A2 및 CF+SCB의 엽록소 지수는 약 7~12% 높게 조사되었다. 잔디 생육량은 DSCB-A1와 DSCB-A2에서 CF보다 25%와 19%씩 증가하였고, 질소 흡수량은 19%와 6%씩 증가하였다. DSCB-A1은 잔디 품질과 잔디생육 및 시비 효율이 가장 효과적인 처리구로 평가되었다. 이러한 결과들을 통해 한국 잔디에서 DSCB-Al의 시비는 화학비료보다 양질의 잔디품질을 보여 골프코스 관리에서 DSCB-A1의 활용은 화학비료를 대체할 수 있을 것으로 기대되었다.

Keywords

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