초록 ▼

○ 논(벼), 밭(옥수수) 장기포장을 조성하고 유기자재 종류별 투입에 따른 토양환경 변화를 평가함.
-탄소증가량: 우분퇴비(1.9Mg/ha/y)>돈분퇴비(1.4)>잔사(옥수수(0.9),볏짚(0.7))
○ 농업환경 보전을 위한 경운의 검증 방법과 적용 가능성을 분석하고 농경지 경운 판별법을 제시하였음.
-논: 무인항공활용 영상 판별, 현지조사 및 청취조사
-밭: 현지조사 및 청취조사
○ 비료 사용한 논·밭 토양의 지속적인 유기물 시용효과를 위해 부식물질 기능기를 분석하고 양분 공급 효과를 구명하였음.

○ 논(벼), 밭(옥수수) 장기포장을 조성하고 유기자재 종류별 투입에 따른 토양환경 변화를 평가함.
-탄소증가량: 우분퇴비(1.9Mg/ha/y)>돈분퇴비(1.4)>잔사(옥수수(0.9),볏짚(0.7))
○ 농업환경 보전을 위한 경운의 검증 방법과 적용 가능성을 분석하고 농경지 경운 판별법을 제시하였음.
-논: 무인항공활용 영상 판별, 현지조사 및 청취조사
-밭: 현지조사 및 청취조사
○ 비료 사용한 논·밭 토양의 지속적인 유기물 시용효과를 위해 부식물질 기능기를 분석하고 양분 공급 효과를 구명하였음.

(출처 : 보고서 요약서 3p)

Abstract ▼

Purpose&Contents
□ Purpose
- To evaluate of Soil Organic Carbon and chemical properties changes under different organic resources application in upland soil
- To Analyze of effects on soil fertility and standardization of tillage verification

Results
This study was carried out to

Purpose&Contents
□ Purpose
- To evaluate of Soil Organic Carbon and chemical properties changes under different organic resources application in upland soil
- To Analyze of effects on soil fertility and standardization of tillage verification

Results
This study was carried out to Development of technology for soil fertility improvement by input of organic material and tillage. Soil organic carbon content incresed like as cow manure compost(1.9Mg/ha/y) > pig manure compost(1.4) > crop residue(corn(0.9), rice straw(0.7)). In addition, soil physico-chemical properties were improved in treatments with organic materials.
Thus, the combined applications of NPK fertilizers with organic materilas recommended as the best fertilization practice for soil carbon accumulation, environment conservation, and enhancement of soil fertility status in the continuous cropping system.

The fertility improved on partial-width tilled upland and no tilled paddy soil, which increase the carbon and aggregate (>0.25mm), decrease the bulk density of topsoil and penetration.The tillage verifications were directly field survey for upland and field survey and image data for paddy. These layers were significantly different to soil pH, oxalate Al contents, and water moisture contents. Alkyl C/O-alkyl C ratio in soil was higher than that of humic extracts, which was decreased below soil depth. Aromaticity of soil and humic extract was ranged from 29-38 and 24-32 %, which was highest at the humic extract of 70-80 cm in soil depth. These results indicate that the changes of SOC in volcanic ash soil resulted from alteration of organic composition.
Organic matter application in arable soil increased total carbon content as well as cation exchangeable capacity(CEC). Irrespectively paddy and upland soil, organic matter input increased soil humus. Soil humus was dominant with aromatic and phenol compound related to compounds of C-H bond and O-H bond. Thses compounds could improve nutrients storage and availability for crop productivity.Application of compost and the mixture of chemical fertilizer and compost in arable soil was increased soil respiration compare to sole chemical fertilizer. These results stimulated the degradation of soluble carbon and nitrogen during soil respiration. Also, Ammonium-N and nitrate was increased with increasing decomposition of organic matter in arable soil.

Soil humus increased cation sorption ordered to Ca, Mg, K, Na ion. sorption constant was shown a different pattern of cation sorption. These results indicates that soil humus is important roles to supply nutrient storage and availability in crop land.

Expected Contribution
Suggestion of practical method for tillage implement

(출처 : Summary 5p)

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 보고서 요약서 ... 3
• 국 문 요 약 문 ... 4
• Summary ... 5
• 목차 ... 6
• 제 1 장 연구 개발 과제의 개요 ... 7
• 제 2 장 국내외 기술개발 현황 ... 10
• 제 3 장 연구 수행 내용 및 결과 ... 12
• 세부 1: 유기물장기연용에 따른 토양탄소 저장능 평가 및 증대기술 개발 ... 12
• 세부 2 : 유기물 시용과 경운에 따른 토양비옥도 증진기술 개발 ... 31
• 세부 3 : 토양유기물에 의한 양분공급 기능 구명 ... 53
• 제 4 장 목표달성도 및 관련분야 기여도 ... 68
• 제 5 장 연구 결과의 활용 계획 ... 70
• 제 6 장 연구 과정에서 수집한 해외 과학 기술 정보 ... 70
• 제 7 장 연구 개발 결과의 보안 등급 ... 70
• 제 8 장 국가과학기술지식정보서비스에 등록한 연구시설·장비 현황 ... 70
• 제 9 장 연구개발과제 수행에 따른 연구실 등의 안전조치 이행실적 ... 71
• 제 10 장 연구개발과제의 대표적 연구실적 ... 72
• 제 11 장 기타사항 ... 73
• 제 12 장 참고문헌 ... 75
• 끝페이지 ... 80