• Title/Summary/Keyword: HORTICULTURAL CROP

Search Result 1,109, Processing Time 0.038 seconds

Cutting Frequency and Liquid Manure Application on Green Manure Production of Rye and Hairy Vetch in Pear Orchard

  • Lee, Seong Eun;Park, Jin Myeon;Noh, Jae Seung;Lim, Tae Jun;Choi, Dong Geun
    • Korean Journal of Soil Science and Fertilizer
    • /
    • v.46 no.5
    • /
    • pp.322-326
    • /
    • 2013

  • Many organic fruit growers adopt cover cropping in their orchards to improve soil properties. A field experiment was conducted to determine the effects of cutting frequency of cover crop (CF) and liquid manure application (LM) on green manure production (GMP) and returnable nutrient content (RNC) in pear orchard. The combined effects of CF and LM were tested at two levels, respectively, with liquid manure ($L_1$) and without liquid manure ($L_0$). After that, cover crops were cut once ($C_1$) and three times ($C_3$) in rye, and twice ($C_2$) and four times ($C_4$) in hairy vetch. The result showed that main factors related to green manure production were different depending on the species. In rye, LM was more effective in increasing the dry weight of cover crop and RNC than CF. In contrast, the parameters were more affected by CF rather than LM in hairy vetch. Thus, it is suggested that different management technique is needed depending on the cover crop species in order to maximize the green manure production in pear orchard.

  • https://doi.org/10.7745/KJSSF.2013.46.5.322 인용 PDF KSCI

A trend analysis of the cultivation status of medicinal crop farmers in Korea

  • Lee, Eun Song;An, Tae Jin;Park, Woo Tae;Jeong, Jin Tae;Lee, Yun Ji;Hur, Mok;Han, Jong Won;Han, Sin Hee;Kim, Young Guk;Park, Chun Geon;Chang, Jae Ki;Kim, Yong Il
    • Korean Journal of Agricultural Science
    • /
    • v.47 no.1
    • /
    • pp.139-161
    • /
    • 2020

  • The aims of this study were to classify the cultivation status of medicinal crop farmers and to obtain basic data on domestic medicinal crops. To this end, 406 medicinal crop farmers participating in farming education programs in 14 cities and counties were surveyed over 10 months. The results were as follows. First, the biggest difficulty farmers faced in the overall production of medicinal crops was a lack of cultivation skills. Second, in a detailed inquiry about each difficulty item, the most difficult problems were injury by continuous cropping of root-using crops, shortage of specific farm machinery, uncertain market prices, and lack of knowledge about pest control or the positive list system (PLS). Third, the profitability of medicinal crops increased with career experience. Among the farmers who earned profits, requests for education and technical guidance were the most important factors for profitability. Fourth, the results of the analysis suggest that to achieve stable cultivation of medicinal crops, the following items need to be addressed: development and supply of basic cultivation technologies, climate response, registration of pest control pesticides, a solution to the injury by continuous cropping, and contracting cultivation expansion. Additionally, to improve profitability, it is necessary to create conditions that enable the same crops to grow for a long time in one region.

  • https://doi.org/10.7744/kjoas.20200007 인용 PDF KSCI

Molecular identification of fungus gnats from shiitake mushroom in Korea (국내 표고버섯 주요 버섯파리의 분자생물학적 종 동정 및 발생양상)

  • Kwon, Sun-Jung;Kim, Hyeong Hwan;Song, Jin Sun;Kim, Dong Hwan;Cho, Myoung Rae;Yang, Chang Yul;Kang, Taek Jun;Ahn, Seung Joon;Jeon, Sung Wook
    • Journal of Mushroom
    • /
    • v.11 no.4
    • /
    • pp.201-207
    • /
    • 2013

  • Fungus gnats are usually found in mushroom farm and have recently become important pest because they can cause severe damage and reduce the production on shiitake mushroom. Usually shiitake mushrooms are cultivated on both oak bed logs and in the artificial sawdust beds in greenhouses. Using yellow sticky trap, the dipteran species in shiitake mushroom farm were collected from May to September in Kyonggi-do and Chungcheong-do in 2013. To identify the main species of fungus gnat on the shiitake farm in Korea, the collected samples were determined the sequence of cytochrome c oxidase subunit I (COI) by DNA barcoding. The phylogeny based on maximum likelihood analyses from COI sequence showed that Bradysia difformis and B. alpicola were main species of shiitake bed log and Scatopsidae sp. and B. difformis were dominant species of sawdust beds.

  • https://doi.org/10.14480/JM.2013.11.4.201 인용 PDF