• Title/Summary/Keyword: 소식재배

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Occurrence of Tiller and Its Effects on Grain Yield of Barley under Different Plant Densities. (대맥의 파종밀도가 분얼발생 및 각얼자의 특성과 수량에 미치는 영향)

  • 신만균;맹돈재;하용웅
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.32 no.3
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    • pp.294-301
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    • 1987

  • This experiment was carried out to investigate the occurrence of tiller and its proportion to grain yield under 5 different plant densities. Plant density 5 x 5cm was more favorable for increasing the number of spikes per unit area, where leads to improve grain yield. Effective tillers showed only main stem, M$_1$-axil and M$_2$-axil, indication more effective tillers in M$_1$ rather than main stem. Every tillers held at least 6 leaves to bear spikes, indicating that main stem has 12 -13 leaves. Leaves attached on main stem M$\sub$0/ and M$_1$ were very important as main source of photosynthesis, especially under more compart plant densities while leaves of M$_1$ occupied 66.8% in a plant. The proportion of grain yield of each tiller to total grain yield per plant was high in main stem under conpact plant density, in M$_1$ stems under less compact plant density, and in M$_2$ -stems under wide plant density, indicating same result on multiple regression analysis.

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On-Farm Study of the System of Rice Intensification (SRI) of Rainfed Lowland in Southern Cambodia (캄보디아 남부 천수답지역의 벼 집약관리재배 시스템(SRI)에 대한 현장 연구)

  • Lee, Yun-Ho;Seo, Myung-Chul;Cho, Jung-Il;Cho, Hyeoun-Suk;Kim, Jun-Hwan;Shin, Pyong;Baek, Jae-Kyeong;Sang, Wan-Gyu
    • Journal of the Korean Society of International Agriculture
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    • v.30 no.4
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    • pp.285-291
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    • 2018

  • The System of Rice Intensification (SRI) has been spread very quickly in southern Cambodia. To understand the motivation of farmers in adapting SRI, and its benefits, we conducted an on-farm study at Popel commune, Tramkak district, Takeo province in southern Cambodia, during the 2012 and 2013 wet season. We noticed a significant difference between SRI and conventional farmers' practices (FP) in rainfed lowland rice ecosystem. Despite of low nitrogen input, without chemical fertilizers, high grain yield was achieved in SRI 1 (6.0 t ha) and SRI2-Bottom ($7.2t\;ha^{-1}$) in 2013. SRI 1 and SRI 2 of panicle and number of panicle were high than SR 3, FP 2, and FP 3 due to early transplant. Relationships between total number of spikelet and plant nitrogen were ($r^2=0.95$) highly positive at harvest. SRI fields were, most of them achieving highly superior yield and number of panicle compared to their FP fields. The results indicated that SRI practices of planting younger seedling, with organic material and topography of paddy, lead to increased grain yield.

  • https://doi.org/10.12719/KSIA.2018.30.4.285 인용 KSCI

Relation between Crop Stand and Yield in White Ginseng Cultivation Area. (백삼산지에서 작황과 수량과의 관계)

  • 박훈;이명구;변정수;이종율
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.32 no.3
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    • pp.369-374
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    • 1987

  • Relationships among root yield, planting density (PD), missing plant rate (MR), leaf area index (LAI) , leaf area per plant(LAP), root weight(RW), number of harvested root(RN) and leaf fall plant rate (LFP) were investigated by survey of white ginseng plantations in Pungi and Geumsan area. In Geumsan PD was about twice than in Pungi but yield was low with high rates of MR and LFP. Yield depended on RN in high PD cultivation while on RW in low PD. The effect of MR on yield was prominent in high PD cultivation. PD showed insignificant negative correlation with yield and no clear relation with MR. RN depended on PD and was especially limited by MR, Yield depended on LAI at harvest time and especially at maximum growth time. LAI was not different between high and low PD area but depended only on RN in high PD and only on LAP in low PD area, and limited by MR in both PD. LAP depended highly on RW and this fact seems to be the very reason that LAI could not increase with the increase of PD. All fields showed the suboptimum LAI.

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협회소식

  • Korea Dairy and Beef Farmers Association
    • 월간낙농육우
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    • v.26 no.4 s.288
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    • pp.100-103
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    • 2006

  • 협회사업 소식- 한 · 미 FTA 대응활동, 미국산쇠고기 수입재개 대응활동, 출산환경 분쟁사례 조사 실시, 제2회 회장단회의 개최, 우수축산물브랜드 육우부문 인증사업 추진, 식품안전처 신설 대응활동, 농림부 규제심사위원회 참석, 방역 담당책임자 간담회 참석, 우수농업경영체 추천, 축산현장 애로사항 모니터링 대상농가 추천, 구제역 특별방역대책기간 중 예방수칙 준수철저 요청, 에버케어 · 교보생명 업무협약 체결, 건전경마추진위원회활동/ 도지회 · 낙우회 소식 - 강원도지회 정기총회 개최, 연세우유연합회 총회 개최, 나주시지회 이취임식 및 낙농가족 한마음 축제 개최/ 총무사업부 소식 - 2006년도 봄재배용 목초 및 사료작물 종자 공급, 2006년도 가을재배용 목초 및 사료작물 종자 신청접수중, 조사료 공급, 송아지 지사제 공급

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