• Journal of Korea Water Resources Association
• /
• v.53 no.11
• /
• pp.939-949
• /
• 2020

Currently, the demand for farmland is steadily decreasing due to changes in the agricultural environment and dietary life. In line with this, the government adopted an integrated water management with the enactment of the Framework Act on Water Management on June 2019. Therefore, it is required to take a closer look at agricultural water demand that accounts for 61% of water use for efficient water resources management. In this study, the overal process was evaluated for estimating agricultural water demand. More specifically, agricultural water demand for paddy field, which comprises 67% to 87% of agricultural water demand, was reviewed in detail. The biggest issue in estimating the paddy field water demand is the selection of the method for potential evapotranspiration. FAO recommends Penman-Monteith, but, currently, our criteria suggest a modified Penman equation that shows over estimation. Also, the crop coefficient, which is the main factor in evaluating evapotranspiration, has an issue that does not consider the current climate and crop varieties because it was developed 23 years ago. Comparing the Modified Penman and Penman-Monteith equations using the data from Jeonju National Weather Service, the modified Penman equation showed a big difference compared to the Penman-Monteith equation. When the crop coefficient was applied, the difference between late May and late August increased, where the amount of evapotranspiration was high. The estimation process was applied to four study reservoirs in Gimje. Comparing the estimated water demand with the supplied water record from reservoirs, the results showed that the estimation accuracy depends on not just the potential evapotranspiration, but also the standard water storing level in paddy fields.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.22 no.4
• /
• pp.360-366
• /
• 2021

Garlic is an important crop, accounting for 1.1 trillion won out of 3.7 trillion won for the total production of seasoned vegetables in Korea. On the other hand, the cultivation area and production volume are decreasing continuously due to the shortage of an agricultural labor force, aging, and insufficient mechanization. In particular, the mechanization of garlic sowing is barely performed, resulting in large amounts of labor. Therefore, it is necessary to study the mechanization of planting garlic. Therefore, in this study, to determine the optimal working conditions for mechanical sowing of garlic, an experiment was conducted to compare the yield according to the sowing angle and depth of garlic during sowing. After sowing using a seeding machine set under optimal conditions, the conventional work and yield were compared. The results showed that it is most appropriate to sow garlic with a sowing angle of 45° or 90° and a depth of 2 cm to 4 cm, and there is no difference in the yield between sowing with a sowing machine and conventional work.

• Journal of the Economic Geographical Society of Korea
• /
• v.27 no.1
• /
• pp.1-17
• /
• 2024

The purpose of this study is to identify the role of each party in relation to the contract farming of cabbage which is taking place under the contract between the local trader of agricultural produce that supplies raw cabbage to company "D," a manufacturer of kimchi, and the cabbage farm where the cabbage is grown, and to describe the changes brought by the contract farming to the agriculture of the contract area. As a result of the study, it was discovered that, while the farming of cabbage in the contract area used to be led by farmers, it is now increasingly being controlled by the local traders of agricultural produce. First, as the key player in the decision-making related to the cabbage farming in the main cabbage producing areas, local traders of agricultural produce are replacing the role of farmers by supervising the entire production process and controlling the overall cabbage farming in the contract area. Second, in the main cabbage producing areas, local traders of agricultural produce are becoming a key farming entity by carrying out functions that are comparable to those of farmers and playing a major role in the second half of the agricultural work at the farms in the contract area. This can be considered as the result of the balance between the demands of the local traders of agricultural produce who need to secure contract volume and manage the quality of their produce and the demands of the farmers in key cabbage producing areas who are facing difficulties due to the increase in the number of elderly farmers and a shortage of manpower.

• Korean Journal of Organic Agriculture
• /
• v.6 no.2
• /
• pp.81-106
• /
• 1998

This study aims to point out what is the basic idea and principle of weed control in or-ganic farming. The korean organic agriculture gets a point in dispute on weed control, be-cause 1) they do not practice the Basic Standard of IFOAM and FAO/WHO Codex Guidelines(draft), and 2) Korean organic farming is defined quite differently from internationally recognized core aspects for organic agriculture. Organic farming, in Korea, is taken to mean just the replacement of chemical fertilizer by organic manure and a-voidance of agricultural chemicals without practicing on rotation, cropping system and so on. As a consequence, organic farmers in Korea are suffering from hard labor to control the weed. In the paper it is discussed on organical weed control method which are required in the Basic Standard of IFOAM and guidelined in the Organic Production Principles of FAO/WHO Codex draft, and furthermore the single or combination effect of those method are also discussed. In conclusion it is suggest the necessity, purpose, and effect of the introduction of the basic stan-dard to korean organic agriculture including organical weed control.

• Korean Journal of Organic Agriculture
• /
• v.11 no.1
• /
• pp.21-37
• /
• 2003

In 1992, HyoGo County in Japan itself established a guideline for the environment-friendly agriculture and have been propelling the environment-friendly agriculture as a major agricultural policy together with organic farming. This study focuses on the evaluation of the “organic farms' villages” projected by the County among other projects. The results indicate that the project results in several benefits such as decrease in chemical input use and environmental pollution, and enhancement in farmers' concerns on safety and environment. On the contrary. it shows that no economic benefits are anticipated in the short run with the organic farming. Therefore, it is necessary to consider economic incentives for farmers who adopt the organic practices to sustain farmers' income.

• Korean Journal of Organic Agriculture
• /
• v.15 no.1
• /
• pp.1-23
• /
• 2007

It is hypothesized that changing from conventional to organic production is an investment because specific capital items are necessary for such a step. It is further hypothesized that in view of the limited experience and the very restricted availability of extension materials such investment is particularly prone to risk. The conversion to organic farming has proven to be an economically interesting alternative for a large portion of the converted farms in the past. This contribution will consider the question of which factors influence the success of organic farming. A discussion of the most important consequences for politics and agricultural practice conclude this paper, drawn on the important factors identified in the study.

• Korean Journal of Organic Agriculture
• /
• v.19 no.4
• /
• pp.463-474
• /
• 2011

The objectives of this study were to establish of resource cycling agricultural system focused on farmer's organization. Case is selected as the farming corporation for the regional agriculture considering the amount of sowing by-products and livestock by-products generated. As a result, generation of fertilizer ingredient depend on feces and urine of Korean native cattle is estimated nitrogen 7.7 ton, phosphoric acid 2.9 ton, and potassium 4.9 ton. On the other hand, generation of fertilizer ingredient demand in cultivated acreage is estimated nitrogen 42.4 ton, phosphoric acid 14.3 ton, and potassium 17.0 ton. Therefore, optimum livestock numbers is estimated 1,867 cattle and it means 1,468 cattle can be raise additionally. In order to complete the resource cycling agricultural system, it should be establish nutrient management system at all of organization level and achieve improvements in regional resource supply. Both economic value of organic fertilizer and the resource cycling system linked market system is considered to develop resource cycling level.

• Korean Journal of Organic Agriculture
• /
• v.8 no.2
• /
• pp.53-77
• /
• 2000

This paper aims to point out the problems and solutions of soil fertility enhancement in Korean organic farming which does not harmonize with internationally recognized standard of organic agriculture such as Basic Standard of IFOAM, EU regulations, and guidelines of FAO/WHO codex alimentarius. The necessity of rotation, legume, green manure to enhance the soil fertility or organic farming system was discussed, and the reasons why salt accumulation including nitrate and phosphate in the rooted soil profiles was frequently occurred in Korean organic farmer's field also discussed. Soil testing for correct handling of organic fertilization was introduced to void the salt accumulation just applying the huge amount of organic fertilizer year to year to reach a maximum crop yield. In the conclusion it was suggested for Korean organic agriculture to make an effort to coincide it's regulation with internationally recognized standards for organic farming.

• Korean Journal of Organic Agriculture
• /
• v.29 no.3
• /
• pp.301-315
• /
• 2021

This study investigated the effect of the level of ethics in food manufacturing of agricultural products processing companies on food safety and product trust. In general, a company's food manufacturing ethics is complex, includes social responsibility, and has a potential impact on stakeholders. The main implications summarized based on the analysis results are the expansion of the HACCP application of the agricultural product processing system, the production of safe agri-food that fulfills social responsibilities with an ethical awareness, including entrepreneurial awareness, from raw materials to processing, packaging, and distribution from a long-term perspective. It was found that it was necessary to secure product trust and to provide education, consulting and management on ethical awareness.

• Journal of Digital Contents Society
• /
• v.18 no.1
• /
• pp.149-158
• /
• 2017

Big data have been presenting us with exciting opportunities and challenges in economic development. For instance, in the agriculture sector, mixing up of various agricultural data (e.g., weather data, soil data, etc.), and subsequently analyzing these data deliver valuable and helpful information to farmers and agribusinesses. However, massive data in agriculture are generated in every minute through multiple kinds of devices and services such as sensors and agricultural web markets. It leads to the challenges of big data problem including data collection, data storage, and data analysis. Although some systems have been proposed to address this problem, they are still restricted either in the type of data, the type of storage, or the size of data they can handle. In this paper, we propose a novel design of a platform for collecting and analyzing agricultural big data. The proposed platform supports (1) multiple methods of collecting data from various data sources using Flume and MapReduce; (2) multiple choices of data storage including HDFS, HBase, and Hive; and (3) big data analysis modules with Spark and Hadoop.