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논문 리스트

2012
배 유기재배에서 녹비작물 재배에 의한 식물양분 환원효과 Nutrient Contribution of Green Manure Crops in an Organic Pear Orchard
한국유기농업학회
논문정보
Publisher
한국유기농업학회지
Issue Date
2012-03-01
Keywords
-
Citation
-
Source
-
Journal Title
-
Volume
20
Number
1
Start Page
37
End Page
48
DOI
ISSN
12293571
Abstract
This study was conducted to evaluate the effects of ground cover treatments on the nutrient contribution in a ‘Niitaka’ pear (Pyrus pyriforia) orchard. Treatments included; 1) sod culture, 2) winter cover crop [ryegrass+hairy vetch], and 3) winter [ryegrass+hairy vetch]+summer [greensolgo (sudan grass (Sorghum bicolor L.))+ nemajanghwang (crotalaria (Crotalaria juncea L.)] cover crops. Ryegrass and hairyvetch were seeded with 6.4 kg/10a and 3.0 kg/10a, respectively, on October 17 of 2008, and greensolgo and nemajanghwang were seeded with 2.0 kg/10a and 3.0 kg/10a, respectively, on June 4 of 2009 at a diligent farmer in Boseong in Chonnam. Winter+summer cover crops provided greater amounts of dry weight, followed by winter cover crop and sod culture. The difference of amounts of dry weight from the ground covers affected to the levels of total N, P, and K contents, which were greater nutrient levels than those of recommended nutrient requirement for satisfying 10- to 12-year-old pear tree growth. Greater amounts of dry weight from the ground covers increased organic matter and concentrations of K and Mg in soil. Foliar nutrient concentrations, as an indicator of nutrient status of a tree, were not affected by application of ground cover treatments.

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