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李赫浩,鄭連圭 順天大學校 1990 論文集 Vol.9 No.1
草地造成用 2種 複合肥料를 開發코자 京畿化學의 試製品(N.P₂O??.K₂O-MgO.B₂O₃:8-25-7.3-0.2)을 一般單肥와 供試하여 겉뿌림 混播草地의 造成肥料로써의 肥效를 究明하였다. 本1報에서는 土壤의 化學性, 牧草의 初期生育狀에 미치는 影響을 檢討하였으며 그 結果는 다음과 같다. 1.草地 造成后 牧草의 出現 및 初期生育狀은 3要素施用區에 比해서 無肥區 및 無燐酸區가 매우 不良하였고, 3要素 施用區에서 肥種間의 差異는 耕微하였다. 2.充分한 燐酸施用과 더불어 3要素의 均衡施肥는 가을 播種后 및 次年度 越冬直后 牧草의 初期生育을 크게 增進시켜 牧草의 定着, 收量 및 牧草率을 提高시키고, 雜草를 抑壓시켰다. 3.草地造成時 MgO 3kg/10a(複肥中 3% 含有) 施用量은 土壤 및 牧草中 Mg 適正含量과 比較할때 매우 不足하였다. 따라서 造成時 增量施用 및 (또는) 管理肥料의 施用時 Mg 施肥가 要求된다. 또한 造成時 石灰肥料로써 苦土一石灰 肥料의 施用이 바람직하다. 4.草地造成時 P₂O??基準量의 施用에도 造成次年度 土攘中 有效 P₂O??含量이 不足하므로, 次年度 越冬直后 管理肥料料써 P₂O??施用이 必要하다. ㅁThis field experiment was undertaken to assess the effectiveness of magnesium-and boron-enriched complex fertilizer (8-25-7-3-0.2;N-P₂O??-K₂-MgO-B₂O₃)compared with some straight fertilizers on the hilly pasture establishment. This first part was concerned with the changes in the soil chemical properties and vigour of oversown forages at early growth in a mixed grass-clover sward. The results from a two-year experiment are summarized as follows: 1.The emergence and vigour of forage plants at early growth were consistently worsened by the teatments of whole control and only P-control(NK-plot),but no differences between them. The above two characteristics were, however, enhanced by the normal NPK applications without significant differences among the kinds of fertilizers used. 2.The normal NPK applications at pasture establishment led to the favorable establishment of forage plants, yield increment, and percent botanical composition of oversown forages. These results had been consistently affected by the enhancement of forage vigour at early grouth after the oversowing and the first wintering. Consequently, the botanical composition of weeds was consistently depressed during a period of the following harvesting years. 3.The application rate of 30kg MgO/ha with the complex fertilizer seemed to be insufficient, compared with the desirable contents of Mg in soils and mixed forages.Therefore, the applications of slaked magnesium lime at pasture establishment Mg fertilizer in the following years are desirably to be carried out. 4.In spite of the P-application at establishment, the content of P in soil was so in sufficient that the P-application after the first wintering was to be carried out.
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초지관리용 복합비료(14-10-12-3-0,2)의 비효시험 I. 토양의 화학성 및 무기염기의 상호균형에 미치는 영향
정연규,이혁호 한국초지조사료학회 1991 한국초지조사료학회지 Vol.11 No.4
초지의 유지관리용 2종 복합비료를 개발코자 경기화학(주)의 시제품(N-P$_2$O$_{5}$-K$_2$O-MgO-B$_2$O$_3$: 14-10-12-3-0.2)을 일반단비와 공시하여 겉뿌림 혼파초지에서 유지관리용 비료로서 비효를 구명하였다. 본 시험에서 토양화학성 및 무기염기의 상호균형(I보), 수량, 식생구성비율 및 목초의 영양성분(II보)에 미치는 영향을 검토하였다. 1. 시험후 토양화학성 변화를 보면 복비구가 단비구보다 Mg함량이 약간 높고 Ca함량은 낮은 경향을 보였으나 적정함량에는 모두 미달하였다. 초지적성등급수준과 비교하면 K함량을 제외하고는 CEC, Ca, Mg 수준이 매우 낮았다. 그러나 유효 P$_2$O$_{5}$ 함량은 단비 및 복비구의 보비수준에서 적정함량(200ppm)에 달하였다. 2. 토양중 치환성 Mg함량은 K보다 낮은 수준이었다. 복비보비구만 일반작물의 critical level(0.29 me Mg/100g)에 달하였으나 목초 및 방목우를 위한 critical level(0.41 me Mg/100g)에는 전시험구가 크게 미달하였다. 3. 염기포화도에서 Ca 및 Mg함량이 바람직한 수준에 크게 미흡하였으나 상대적으로 복비구는 Mg비가높았다. 또한 Mg/K, Ca/Mg, Ca : Mg : K당량비, %Mg of CEC는 바람직한 수준에 대체로 미흡하였으나 복비구가 단비구보다 상대적으로 양호한 특성을 보였다. 4. 본 토양화학성과 연관하여 볼때 초지조성시 석회일약토 비료(토양개량제)의 시용으로 Ca 및 Mg의 기본함량의 제고가 필요하였다. This study was undertaken to assess the effectiveness of magnesium-and boron-enriched complex fertilizer(CF, N-P$_2$O$_{5}$-K$_2$O-MgO-B$_2$O$_3$: 14-10-12-3-0.2) on the maintenance and management of hilly pasture. The effectiveness of CF was compared to those of some straight fertilizers (SF). This first part of the study was concerned with the soil chemical properties and the mutural balances of mineral nutrients in the soils of a mixed grass-clover and a pure grass swards. The results of a two-year field experiment are summarized as follows: 1. The Mg contents in the soils of the CF plots were higher than those of the SF plots. On the other hand, the Ca contents were higher in the SF plots than in the CF plots. The contents of Mg and Ca, and CEC, except K, in both the CF and SF plots were considerably below the optimum levels. At the normal application rate of NPK, the contents of available P$_2$O$_{5}$ were close to the optimum level in both the CF and SF plots. 2. The contents of exchangeable Mg were lower than the K contents in soils of all the plots. At the normal application rate of NPK, the Mg contents in the CF plots, but not in the SF plots, were close to the critical level for general crops (0.29me Mg/100g soil). The Mg contents in soils of all the plots, however, were considerably below the critical level for pasture forages and grazing cows (0.41me/100g). 3. Considering the desirable base saturation level of soil, the saturation levels of Ca and Mg were insufficient in both the CF and SF plots. The saturation levels of Mg in the CF plots, however, were relatively good compared with the SF plots. The equivalent ratios or Mg/K, Ca/Mg. Ca:Mg:K, and %Mg of CEC in soils were generally unfavorable in all the plots. These ratios of the CF plots, however, were relatively better than those of the SF plots. 4. Considering the contents of exchangeable Ca and Mg in soils, it is suggested that the application of slaked magnesium lime as a soil amelioration might be desirable for the fundamental increment of those contents at pasture establishment.
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산지초지에 의한 유기질복합비료의 시용에 관한 연구 I. 유기질 복합비료의 시용이 혼파목초의 건물수량과 식생변화에 미치는 영향
박근제,이혁호,신재순,이종열 한국초지조사료학회 1988 한국초지조사료학회지 Vol.8 No.3
山地초지에 고토와 함유된 有機質複合비료의 施用이 목장의 건물수량, 수량구성요소 및 식생변화에 마치는 影響을 究明코자 비종과 시비수준을 달리한 5處理를 亂塊法 3反復으로 團場配置하여 1984年 9月부터 1986年 10月까지 水原 근교의 신 개척지에서 本 試餘을 수행하였던 바 그 결과를 요약하면 다음과 같다. 1. 목장의 耐冬性, 生育勢 및 被覆率 等 初期生 育狀態는 有機質複함포료 施用區가 단비시용에 比해 良好하였다. 2. 2年평균 목장의 乾物收量은 시비水準間에는 有意差있는 增收했果가 있었으며, 少肥施用水準에서 단비구의 乾物수량 7,930.6kg/ha에 比해 有機質 複合비료 施用區는 8,693.1kg/ha로서10%, 普肥施 用水準에서는 單肥區의 11,122.6kg/ha에 比해 有機 質複合肥料 施用區는 12,758.7kg/ha를 生産하여 15% 회수되었으나 有意性은 없었다. 3. 植牛別 건물수량은 未本科 救草의 경우 施肥量이 많아짐에 따라 有意差있게 증가하였으며 (P<0.01), 荳科救草의 收量은 無肥區는 施肥區(少肥, 普肥)에 比해 顧著히 회수되었으나(P< 0.01), 少肥와 普肥施用水準 問에는 有意性이 없었다. 한편 肥種問에서는 有機質複合肥料 施用區가 單肥에 比해 未本科 목초는 8-14%, 荳科는 26-29% 增收되었으나 有意性은 없었다. 4.. 植生構成比率은 草地管理時에 施肥 하지 않은 곳은 荳科의 優古現象이 나타났으나, 3要素 施用區는 植生比率 및 목초율이 적합하였으며, 유기質複合비료 施用區의 荳科比率은 單肥施用區에 比해 漸次 增加되는 碩向이였다. 5. 試嚴後 士壞의 化學成分은 試餘前에比해 顯 著히 높아졌으나 施肥水準을 平均하여 볼때 有機質 複合nE料 施用區는 單肥에 比해 有機物과 有郊憐嚴含量은 높았고, pH 및 置換性 醒基는 若千 낮은 碩向이었다. With a purpose of finding out the effects of magnesium and boron enriched organic-compound fertilizer application on the dry matter yield, yield components and changes in the botanical composition on the hilly pasture, a field experiment was arranged with five different treatments as a randomized block design and lasted from September, 1984 to the end of growing season in 1986. The results obtained are summarized as follows : 1. As a early plant growth and development, winter hardiness, growth vigour and coverage of grasses at the plots with organic-compound fertilizer application were better comparing to single dressing. 2. Average dry matter yields for two years were shown significantly high due to increasing amount of fertilizer. This trend was same both single and organic-compound fertilizer. And dry matter yields with organic-compound fertilizer application of low (8, 693.1 kg/ha) and conventional level (12, 758.7 kg/ha) were appeared to increase by 10 and 15% than those of single dressing of Low (7, 930.6 kg/ha) and conventional level (11, 122.6 kg/ha), respectively. But it was not significant difference. 3. Dry matter yield of grasses was significantly gained by increasing amount of fertilizer. The yield of legumes at the plot without fertilization was significant higher comparing to fertilizing plots, but it was not different between low and conventional dressing levels. However, at the plots with organic-compound fertilizer application the yields of grasses were a little more increased by 8-14%, and legumes were much more gained by 26-29% than those of the same species groups with single dressing, but it was not significant between the different kinds of fertilizer in the same fertilizing level. 4. At the grassland management, the rate of legumes tended to dominate at the plot without fertilization gradually. On the other hand, the botanical compositions and the rates of grasses were much better maintained at the plots with fertilization. But the rates of legumes with organic-compound fertilizer application tended to increase a little more than those of single dressing gradually.
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초지관리용 복합비료(14-10-12-3-0.2)의 비효시험 II. 총건물수량, 수량구성요소 및 목초의 영양성분에 미치는 영향
정연규,이혁호 한국초지조사료학회 1991 한국초지조사료학회지 Vol.11 No.4
초지관리용 2종 복합비료를 개발토자 시제품(N-P$_2$O$_{5}$-K$_2$O-MgO-B$_2$O$_3$: 14-10-12-3-0.2)을 일반단비와 공시하여 비효를 비교검토하였다. 대상초지로는 새로 조성된 겉뿌림 혼파초지(orchardgrass, tall fescue, Kentucky bluegrass 및 ladino clover) 및 기존의 겉뿌림 단파초지(orchardgrass 우점초지)를 공시장소로하여 2년간 시험을 수행하였다. 1보에서는 토양화학성 및 무기염기의 상호균형, II보(본보)에서는 수량성 및 목초의 영양성분에 미치는 영향을 검토하였으며 이에 얻어진 주요결과는 아래와 같다. 1. 2년평균 건물수량은 혼파 및 단파초지 모두 동일시용수준에서 복비구가 단비구보다 월등히 높았다. 복비구의 수량증수효과를 초종별로 보면, 혼파초지에서 총수량은 소비수준에서 10.8% 보비수준에서 14.5% 증수되었다. 그러고 구성초종중 화본과목초의 수량은 소.보비수준 공히 11% 내외 증수되었고, 두과목초의 수량은 소비수준에서 21.5%, 보비수준에서 31.0% 증수되었다. 그러나 잡초수량은 거의 차이가 없었다. 화본과 단파초지의 수량은 소비수준에서 7.0%, 보비수준에서 21.8% 증수되었다. 2. 복비구가 단비구 보다 뚜렷한 증수효과를 보였으나, 시용수준과 혼.단파 및 구성초종의 특성들에 따라서 수량 증수율에 차리를 보였고, 소비보다 보비수준에서 그리고 화본과목초보다 두과목초에서 상대적으로 더 높은 증수효과를 보였다. 3. 일반성분의 함량차이를 보면, 조섬유, 조지방 및 NFE는 처리간에 뚜렷한 차이를 보이지 않았다. 그러나 조단백질 및 조지방 함량은 혼.단파 초지에서 공히 보비수준의 복비구가 다른 처리구보다 다소 높은 경향을 보였다. 4. 무기양분의 함량처리를 보면 단.복비구간 처리된 차이를 보이지 않았다 Mg가 첨가된 복비시용에서도 초지토양 및 목초중 Mg함량이 적정수준에 미흡하였다.다. In a two-year's field experiment, the effectiveness of magnesium-and boron-enriched complex fertilizer (CF, N-P$_2$O$_{5}$-K$_2$O-MgO-B$_2$O$_3$: 14-10-12-3-0.2) on the maintenance and management of hilly pasture was studied. The effects of CF and some straight fertilizers (SF) on forage yields, yield components, and chemical compositions were compared in a mixed grass-clover (orchardgrass, tall fescue, kentucky bluegrass, and ladino clover) and a pure grass (orchardgrass) swards. The results are summarized as follows: 1. Considerably higher average dry matter yields were obtained in the CF plots than in the SF plots. In the mixed sward, the yields of whole mixed forages were inclosed by 10.8-14.5%, grasses by 11%, and legume by 21.5-31.0% by the use of the CF over the use of SF. In the pure grass sward, the yield of grasses was increased by 7.0-21.8%. 2. The rates of yield increase due to the application of CF were dependent on such factors as types of sward (pure or mixed), application rates of NPK, and forage species. The increase of forage yields due to the CF was greater at the normal rate of NPK application than at lower application rate, and in legume forage than in grass forage. 3. The crude fiber, crude fat and NFE contents of forages were not significantly changed by different treatments. However, the forage of CF plot at the normal application rate of NPK contained relatively higher amount of crude protein and crude fat compared with the forages of other plots. 4. There were no significant differences in the contents of mineral nutrients in forages among the different treatments. In spite of the application of Mg-enriched CF, the contents of Mg in soils and forages were below the optimum level.
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정연규,이혁호 한국초지조사료학회 1998 한국초지조사료학회지 Vol.18 No.3
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