• Title/Summary/Keyword: 작물재배

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Effects of Green Manure Crops on Red-pepper Yields and Soil Physico-chemical Properties in the Vinyl House (시설재배지 녹비작물 재배가 고추의 수량과 토양 이화학성에 미치는 영향)

  • Yang, Seung-Koo;Seo, Youn-Won;Lee, You-Seok;Kim, Hyun-Woo;Ma, Kyung-Cheel;Lim, Kyeong-Ho;Kim, Hong-Jae;Kim, Jung-Guen;Jung, Woo-Jin
    • Korean Journal of Organic Agriculture
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    • v.19 no.2
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    • pp.215-228
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    • 2011

  • To establish the organic cultivation of pepper using green manure crops, this work studied the growth characteristics and yield of green manure crops, mineral composition of green manure crops, mineral uptake in shoots of green manure crops, chemical composition in soil of green manure crops, and the growth characteristics and yield of pepper in vinyl house. Shoot dry weight of green manure crops was higher level in Sorghum bicolor and Sorghum than in Crotalaria juncea and Glycine max. Also, the roots were spread deeply into soil in Sorghum bicolor and Sorghum. Density of root-knot nematodes in rhizosphere of green manure crops was significantly more decrease in Crotalaria juncea and Sorghum than in Glycine max and Sorghum bicolor. Total nitrogen and CaO content of green manure crops was significantly higher in Crotalaria juncea and Glycine max than in Sorghum bicolor and Sorghum. $K_2O$ content was significantly higher in Sorghum bicolor and Sorghum than in Crotalaria juncea and Glycine max. MgO content was not significant difference at all green manure crops. Cations content ratio of $K_2O$ : CaO : MgO was 3.4 : 1.4 : 1. Total nitrogen uptake in shoots of green manure crops was high level in Glycine max, Sorghum bicolor and Sorghum compared with in Crotalaria juncea. $K_2O$ and MgO uptake was significantly higher in Sorghum bicolor and Sorghum than in Crotalaria juncea and Glycine max. Value of pH in soil of green manure crops was more increase in Crotalaria juncea and Glycine max than in Sorghum bicolor, Sorghum and control, but after cultivation of pepper pH in soil was recovered with initial soil pH before seeding of green manure crops. EC value in control, green manure crops, and pepper cultivation decreased by 44%, 15~18%, and 38~61% level, respectively, compared with initial soil of green manure crops treatment. K content in soil of control, Crotalaria juncea and Glycine max cultivation was increased by 14%, but the K content in soil of Sorghum bicolor and Sorghum decreased by 24~38%. Cation exchange capacity (CEC) in soil of Crotalaria juncea and Sorghum bicolor decreased by 11%, but CEC in soil of Glycine max, Sorghum and control increased by 11%. Harvest fruit yield was higher in Crotalaria juncea, Glycine max, and Sorghum bicolor cultivation than in control and Sorghum.

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온도에 따른 벼 등숙특성 변화

  • Woon-Ha Hwang;Myeong-Gye Choi;Seo-Young Yang;Jae-Hyeock Jeong;Hyeon-Seok Lee;Chung-Kuen Lee
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2020.11a
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    • pp.67-67
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    • 2020

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