비료는 작물 재배 및 생산성 증대를 위해 필수 농업자재이다. 식량안보 및 영양결핍 해소를 위해 베트남에서는 스마트 한 방법으로 농업의 혁신을 가속화하고 있다. 작물 생산의 주된 목적은 시장 요구에 맞는 안전한 농산물을 재배하는 것으로 본 논문에서는 작물 생산 측면에서의 베트남의 화학비료 및 유기비료에 대한 현황 등을 소개하였다. 1960년대부터 최근까지 베트남의 비료 역사와 작물 재배에 있어 화학비료와 유기비료의 현황 등을 소개하였다. 베트남에 서 대부분의 작물 재배에 있어 화학비료와 유기비료를 7:3의 비율로 사용하는 것을 권장하였다. 그러나, 무엇보다 토양, 기후, 작물 및 시장의 요구에 맞게 양분 균형을 이루어지게 활용하는 것이 중요하다고 제안하였다. 또한, 완효성 비료 등 차세대 글로벌 시장의 비료 산업에 대한 전망도 제안하였다.

The top country of organic agriculture becomes nowadays well known Germany in terms of technical levels not only in the field of organic plant & animal production but also food processing & marketing. In this paper, 3 main factors which exerted a strong influence on the evolution & development of German organic agriculture in Germany were discussed.First, German Universities such as University of Bonn, University of Giessen, and Hohenheim University established Dept of Organic Agriculture and offers the organic agriculture major in the Master & Ph D course, while University of Kassel established College of Organic Agriculture and offers 23 major courses in various organic agriculture sectors. Furthermore most agriculture colleges in Germany offers some organic agriculture subjects to the students, because organic agriculture is one of the emerging industries in the agricultural sector, and farmers and consumers pay a great attention. There are 50 universities which offer agriculture courses in Korea, nevertheless none of Korean university offers Dept of Organic Agriculture. Second, German federal government established National Institute of Organic Agriculture in Trenthorst and tried to develop new scientific technology and skills for organic plant and animal production. And these new technical information was transferred to organic farmers through Demonstration Farm which is located in more than 200 sites. Third, Organic Agriculture Extension Service Center such as Kompetenzzentrum Oekolandbau Niedersachen (KÖN) was established in each states from 2002. These Organic Centers offer various advices for organic farmers verified scientifically or and the technical package for conversion farmer too.

Microorganism such as a bacterium, virus, fungus, or microscopic nematode worms can be used in agricultural practices to control of elimate pests that can inflict damage to a plant. Agents used as biopesticides include parasites, predators, fungi, bacteria and viruses. Each agent has a specific mode of operation used to control pests. They are being recommended and used as components of IPM programs in the production of high-value specialty crops such as fruit, nut, vegetable, vine, ornamental, and turf crops. The global pesticide market was valued in 2013 at approximately $54.2 billion. Of that total, nearly 30% is comprised of herbicides to control weed populations. This segment of the market is projected to expand through 2014 for both synthetic pesticides and biopesticides. The projected market percentage should reach nearly 6% by 2014. Biological control agents are termed as ‘Biological Pesticides’ by the Korean government. At present there are 33 registered products in Korea under this category, among these 19 are fungicidal, 13 are insecticidal and only 1 have herbicidal activity. The total number of domestically produced biological pesticides is 19 including Bts whereas rest of them are imported. Mostly these are originated from microorganisms. Organic agriculture materials are 1,300 registered products in Korea. Approximately 500 companies have registered your product is a very small company and the parent company, except for the more than 20 companies.

In this study, rye, Hairy beaches, pastures long and weighing many organic grazing cover crops can repress the uniforms, and the tractor was designed and built for mounting repression device. And identify appropriate working conditions and job factors and job performance by analyzing the correlation between the test results are as follows. Level 40∼50HP tractor for applying cover crops repression device width 2,400㎜, battling roller diameter is 380㎜, battling back after work uniforms repress blade for 4×100㎜, 640㎏ gross weight was optimized. Optimization of field test the tractor speed shift 1(0.45㎧∼0.53㎧) and in the repression and crop height 40∼ 60㎜ uniforms, respectively. Appropriate working conditions identified by weight in the roller by type by speed test results, the weight is heavy, long repression and squeezed me, speed was increased, the lower the efficiency of repression.

In this paper, the effect of different land-use types on soil organic carbon (SOC) and Particulate Organic Carbon(POC) was studied by analyzing the soils in the meadow and conversing land of grassland to cropland in ecotones of agriculture and animal husbandry. It is shown t㏊t, compared with meadow, rotations of P/O and P/Cwill reduce SOC in 0-30㎝ soil layers by 47.54%-65.11% and 34.16-64.26% and POC by 16.90%-24.48% and 11.94%-20.29%, respectively. And SOC in meadow is more t㏊n in conversing land of grassland to cropland (P＜0.05). Conversing grassland to cropland in ecotones of agriculture and animal husbandry will decrease the contents of SOC and POC.

This study was conducted to investigate farmers’ satisfaction in organic farming technologies developed by the Rural Development Administration (RDA). The survey targeted farmers who were eco-friendly or interested in eco-friendly agriculture. 70% of the target farmers were doing eco-friendly farming, and the satisfaction rate of the technology developed by the RDA was 3.85 points. The satisfaction of the farmers who participated in demonstration and demonstration of the farming field of the developed technology was 4.00 and the satisfaction level of organic farming instruction manual was 3.95. In addition, 38.4% of the surveyed areas were found to be pest control areas, and the impacts on the satisfaction of the organic cultivation related technology utilization and the satisfaction of the organic cultivation guide were analyzed. As a result, the RDA needs to develop and supply customized technology for aged small farmers.

Although some skeptical views arguing that the impact of organic farming is quite limited to sustainable biodiversity, the organic agriculture has been generally accepted to have positive effects on various properties of soils not only on biophysical and ecological properties but also on biodiversity of the field. Therefore, this field investigation has been conducted to examine the effect of organic farming, relative to conventional agriculture, through a comparative investigations of the two systems for conserving local biodiversity of invertebrate animals. For this research, organic and conventional farming locations matched with both of a paddy field and a upland fields in Goesan-gun province (Chungcheongbuk-do, South Korea) were selected to compare the species richness of invertebrate biodiversity as follows: location OP (Organic Paddy field), location OU (Organic Upland field), location CP (Conventional Paddy field), and location CU (Conventional Upland field). Among 249 species collected, the numbers of species collected in the locations practicing organic farming were greater than the locations practicing conventional farming both in paddy fields (104 vs. 84 species) and upland fields (108 vs. 77 species). Changes in species richness can be shown in the selected locations depending on the agriculture system with organic (50 species) or conventional (44 species) farming systems in the paddy fields, similarly with organic (42 species) or conventional (35 species) farming in the upland fields, respectively. Our present research clearly shows that a wide range of taxa, including insects, spiders and other invertebrates, benefit from organic management through increases in abun-dance or species richness. It has been also identified that four orders (Hemiptera, Diptera, Hynemoptera, and Araneae) that are largely intrinsic to organic paddy field, and another three orders (Hemiptera, Coleoptera, and Araneae) that are particularly beneficial for organic crop field regime.

본 논문은 한국형 무경운 재배 토양에서 유기물 투입과 분할 관수가 고추 생육 및 수량 과 토양 화학성, 생물다양성에 미치는 영향을 구명하고자 추진하였다. 시험 후 토양에 화학 성을 조사한 결과 토양 pH는 5.6~6.2, 유기물 함량은 32~42 g ㎏-1, EC는 1.0~2.7 dS m-1, 치 환성 K은 0.08~0.24 cmol+ kg-1, Ca은 9.5~12.8 cmol+ kg-1, Mg은 2.7~3.2 cmol+ kg-1 수준이었 으며, 유효인산은 1,011~1,137 mg kg-1 수준이었다. 무처리에서 토양에 미소동물은 톡토기와 응애류 등 5종 54개체가 포획되었으나, 대두박을 투입한 처리는 9종 271개체가 포획되어 되었다. 토양환경의 지표가 되는 자연도 점수가 대두박 투입 처리는 11점으로 무 투입 5점 에 비하여 2배 정도 증가되었다. 대두박 투입은 무 투입에 비하여 고추의 수확과수의 감소 로 수량이 감소되는 경향이었다. 그러나 대두박 무 투입 조건에서 표준시비량의 33~66% 수준에서고추 수량은 증수되었으며 대두박 투입에서는 표준시비량의 33% 수준에서 증수 되었다. 2회 분할관수는 1회 전량관수에 비하여 고추의 수확 과수가 12.5~34.9% 증가되었 고, 수량은 13.5~34.4% 정도 증수되었다.

두둑과 고랑을 재활용한 한국형 무경운 농업에서 유기물 투입과 관수 효과를 구명하고 자 무경운 토양에서 시험을 수행하였다. 1. 토양 미생물상 1회 전량관수 조건에서 대두박 투입 처리구의 토양 세균과 곰팡이 수는 대두박 무 투입 구에 비하여 많았다. 그리고 유기질비료 투입량이 표준시비량 66%까지 증가되면 세균과 곰팡이 수는 증가되었으나, 그 이상에서는 세균과 곰팡이 수가 감소되는 경향이었다. 곰팡 이/세균 비율은 관수 방법과 관계없이 대두박 투입 처리에서 0.6과 1.1로, 무투입 처리의 0.2와 0.5보다 2배 이상 높았다 1회 전량 관수 조건에서 유기질 비료 시비량이 증가되면 대두박을 투입한 처리는 방선균 수는 감소되는 경향이었으나, 대두박 무투입에서는 증가되었다. 2회 분할 관수는 1회 전량 관수에 비하여 대두박 무 투입 조건에서 세균과 곰팡이 수가 증가되었으나, 대두박 투입 조건에서는 방선균 수가 증가되었다. 2. 토양 효소 유기질 비료의 시비량이 증가되면 토양 내 Chitinase 활성은 대두박 투입 토양에서 감소 되고, 대두박 무 투입에서는 증가되는 경향이었다. 그러나 대두박을 투입에 관계없이 2회 분할 관수는 1회 전량관수에 비하여 Chitinase 활성이 증가되었다. 1회 전량관수 조건에서 대두박 투입 처리구의 β-Glucosidase 활성은 무투입에 비하여 높 았으며, 유기질 비료 투입량이 증가되면 표준시비량의 66%까지는 β-Glucosidase 활성이 증 가되었으나, 표준시비량에서는 감소되었다. 대두박 무투입 조건에서 2회 분할관수 토양 내 β-Glucosidase 활성은 1회 전량관수에 비하여 현저하게 증가되었다. 1회 전량관수 조건에서 대두박을 투입한 처리의 N-acetyl-β-D-glucosaminidase의 활성은 무투입구에 비하여 높았다. 대두박 투입 처리에서 유기질 비료 투입량이 표준시비량의 66 %까지 증가되면 N-acetyl-β-D-glucosaminidase의 활성은 증가되었으나, 표준시비량에서는 유의적인 차이가 없었다. 대두박 무투입 조건에서 2회 분할관수는 1회 전량관수에 비하여 N-acetyl-β-D-glucosaminidase의 활성은 증가되었다. 대두박 무투입 조건에서 유기질 비료 시비량이 표준량의 66% 수준에서는 토양 내 산성인 산가수분해효소(Acid phosphatase)의 활성 높았다. 대두박 투입 조건에서는 유기질 비료 시비 량이 증가되면 산성인산가수분해효소(Acid phosphatase)의 활성은 증가되는 경향이었다. 3. 토양 AMF 대두박 무투입 조건에서 유기질 비료의 투입량이 표준시비량의 66%까지 증가되면 토양 의 내생균근균의(AMF) 포자수는 증가되었으나, 유기질 비료 투입량이 표준시비량에서는 근균의 포자수는 감소되었다. 그러나 대두박 투입에서 근균의 포자수는 유기질 비료 투입 량에 따른 유의적인 차이가 없었다. 그리고 내생 근균의 고추 뿌리에 정착률은 대두박 투 입량에 따른 유의적인 차이가 없었으며, 2회 분할 관수도 같은 경향이었다.

두둑을 재활용한 무경운 재배 토양의 고추의 생육량은 관행경운 토양에 비하여 22% 정 도 증가되었고, 무경운 3년차는 12% 정도 증가되었다. 무경운 재배 2년차 토양에서 생산된 풋고추 건물중은 348.4 kg 10-1으로 관행 경운 토양에 비하여 16% 증가되었으나, 무경운 3 년차는 감소되었다. 무경운 2년차 토양의 세균은 관행 경운 토양에 비하여 유의적인 증가를 보였으나, 무경 운 3년차에서는 관행 경운 토양과 유의적인 차이가 없었다. 방선균도 경운 토양에 비하여 무경운 2년차 토양은 유의적인 증가를 보였으나 무경운 3년차는 감소되었다. 곰팡이는 경 운토양에 비하여 무경운 2~3년차 토양에서 1.3~1.7배 정도 증가되었다. 무경운 재배 토양의 CO2 발생량은 경운재배 토양에 비하여 41% 수준으로 발생량이 현저 하게 감소되었다. 고추 생육 초기 관행 경운 토양의 미소동물은 톡토기목과 응애목 2종 6개체가 포획되었 으나, 무경운 1년차 토양에서는 지네강 등 5종 11개체가 포획되었고, 무경운 2년차는 딱정 벌레와 지네강 등 3종 5개체가 포획되었다. 고추 정식 46일 후에 조사한 경운재배 토양은 보라톡토기 등 4종 40개체를 포함 큰집게벌레 등 8종 97개체가 포획되었다. 무경운 재배 토양은 9~10종 101~107개체가 포획되었다. 지표생물로서 환경의 변화의 기준이 되는 자연도 점수는 관행경운양 19점에 비하여 무 경운 토양의 자연도 점수는 33점으로 1.74배 정도 높았다. 따라서 두둑과 고랑을 재활용한 한국형 무경운 농업은 관행 경운토양에 비하여 작물의 생육과 토양 미생물, 토양 곤충을 포함한 토양생물 다양성, 온실가스 발생량 감소에 긍정적 인 역할을 하는 것으로 판단되었다.

The organic farming was begun with principles and values like environmental friendliness, symbiosis, and cooperation and circulation. And there has cut keen market competition, as sales and market size of organic agricultural products have been much larger. Thus producers and consumers have kept up with the market trend making light of the philosophy and principle of organic agriculture. So cases of fraud or false certification have been increased since 2010. Accordingly, not a few consumers have distrusted of the safety of organic agricultural products. And the status of organic agriculture has shown downward trend and market size of organic agricultural products has been reduced since 2012. Thus the income of organic agricultural farmers hasn't been increased. It is thought that present organic agriculture fell into the crisis. Now, organic agricultural farmers should practice farming methods based upon the philosophy and principle of organic agriculture in order to overcome its crisis.

Organic agriculture at Hongdong began with the conscious efforts of farmers who were influenced by Japanese experience and the environmental degradation by conventional agriculture in the mid-1970s. Based on their strong conviction, even though the lack of organic technique and information, those farmers started to implement organic agriculture which was beyond the production increase policy at that time. The solidarity among farmers could establish the foundation of organic agriculture through undergoing trial and error. Substantively interchange and communication between farmers and consumers played a prominent role to strengthen the organic agriculture at Hongdong as well.

The major purpose of this study was analyzing of farmer’s intention in related to organic agriculture by using of the Theory of Planned Behavior (TPB). Farmers of Chungchung Province (n=164) were administered a questionnaire survey that measured TPB constructs. The data and hypotheses were analyzed using multiple regression and confirmatory factor analysis by SPSS 21.0 and AMOS 21.0. Results showed that attitude, subjective norms, and perceived behavior of control were all positively related to farmer’s intention of organic agriculture and explained power of the model was relatively high which was 51 percent. Also the results of the analysis showed that the subjective norm was a key dimension of farmer’s intention in terms of standardized coefficient. The study demonstrated that the reduced theory of planned behavior was fit for factors of farmer’s intention. The meaning of the study and implications for future studies were discussed.