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논문 기본 정보

자료유형
학위논문
저자정보

이성은 (전북대학교, 전북대학교 일반대학원)

지도교수
최동근
발행연도
2013
저작권
전북대학교 논문은 저작권에 의해 보호받습니다.

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이 논문의 연구 히스토리 (2)

초록· 키워드

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Many farmers have been seeking alternatives to chemical fertilizer for successful organic fruit production. This experiment was carried out to investigate the replaceability of chemical fertilizer by cover crop and slurry composting biofiltration (SCB) liquid manure (LM) application in pear orchard. Three treatments were contained in this experiment; cover crop only and cover crop + LM treatment, and control (chemical fertilizer application). Dry weight and mineral contents of gramineous cover crops were significantly increased in LM-combined treatments than that of leguminous species. Bulk density of soil was decreased in rye + LM and hairy vetch + LM treatments, compared with each cover crop treatment. Soil pH was lowest in fertilizer treatment and soil nitrate content became similar between treatments after rainy season. Available soil phosphate was lower in cover crop and cover crop + LM treatments than control, but exchangeable Mg was higher. The mineral content and net assimilation rate of leaves showed no difference between the treatments. As a result, it is suggested that the application of SCB liquid manure in pear orchard managed by cover crops is desirable to maintain the productivity by improving soil physical properties and potential nutrient recovery.

목차

I. 서언 1
II. 연구사 3
III. 재료 및 방법 9
IV. 결과 및 고찰 13
1. 시비 질소 회수율 및 양분환원 가능량 13
2. 녹비 생산량 및 토양물리성 변화 16
3. 토양화학성 변화 19
4. 광합성과 잎의 무기성분 함량 변화 22
5. 과실 품질 및 수량에 미치는 영향 24
V. 적요 26
VI. 인용문헌 27

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