보고서 정보
주관연구기관 |
국립식량과학원 National Institute of Crop Science |
보고서유형 | 최종보고서 |
발행국가 | 대한민국 |
언어 |
한국어
|
발행년월 | 2014-02 |
과제시작연도 |
2009 |
주관부처 |
농촌진흥청 Rural Development Administration(RDA) |
등록번호 |
TRKO201400010985 |
과제고유번호 |
1395018850 |
사업명 |
작물시험연구 |
DB 구축일자 |
2014-07-05
|
DOI |
https://doi.org/10.23000/TRKO201400010985 |
초록
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Ⅳ. 연구개발결과
1. 답리작 녹비작물 안전재배 및 이용기술 개발
○ 녹비 환원기의 파종방법별 biomass는 최소경운과 무경운 파종에서 높았고 질소생산성도 10a 당 0.2∼0.7 kg 높았음
○ 벼 수량은 최소경운파종과 무경운 파종구에서 관행(498.1 kg/10a)에 비하여 5 ∼ 5.8% 증수되었음
○ 헤어리베치 이용 친환경 벼 재배지에서 녹비생산량 부족 시 혼합유박의 시용량은 헤어리베치와 혼합유박의 총 질소함량이 N 검정시비량(1N) 기준으로 1.0N ~1.2N 수준이 되도록 혼합유박 시용하는 것이 적
Ⅳ. 연구개발결과
1. 답리작 녹비작물 안전재배 및 이용기술 개발
○ 녹비 환원기의 파종방법별 biomass는 최소경운과 무경운 파종에서 높았고 질소생산성도 10a 당 0.2∼0.7 kg 높았음
○ 벼 수량은 최소경운파종과 무경운 파종구에서 관행(498.1 kg/10a)에 비하여 5 ∼ 5.8% 증수되었음
○ 헤어리베치 이용 친환경 벼 재배지에서 녹비생산량 부족 시 혼합유박의 시용량은 헤어리베치와 혼합유박의 총 질소함량이 N 검정시비량(1N) 기준으로 1.0N ~1.2N 수준이 되도록 혼합유박 시용하는 것이 적정한 것으로 나타남
2. 녹비작물을 이용한 벼 무경운 재배기술 개발
○ 녹비작물 피복 벼 무경운 직파재배에서 키다리병 발생이 줄어드는 경향이었음
○ 벼 최소경운 건답직파 파종기 개발 완료 및 재배체계 확립
○ 벼 무경운재배 시 자생두과녹비작물 얼치기완두 및 새완두는 1회만 파종하여도 재입모가 가능하여 재투입 없이 자연비료 공급이 가능힘
○ 동계 둑새풀을 피복하면 무피복에 비해 토양수분이 높아지고 초기 벼 입모에 도움을 주며 특히 종자소독을 하지 않아도 키다리병 발생이 거의 없었음
○ 벼 무경운 파종골 내는 아이디어 창출 및 파종기 개발 중
3. 두과 녹비작물을 이용한 옥수수 화학비료 절감 연구
○ 경사지에서 옥수수 재배시 콩과녹비작물 리빙멀치로 유거수(헤어리베치 76.7%, 크림손클로버 86.8%) 및 토양유실량(헤어리베치 97.7%, 크림손클로버 98.8%)을 경감시킴
○ 무경운 옥수수 재배시 헤어리베치와 크림손클로버 리빙멀치로 옥수수 생육 중기 잡초의 건물생산량을 약 72∼80% 억제할 수 있었음
○ 두과녹비작물을 5년간 연속 환원한 무경운 재배지의 옥수수 수량은 헤어리베치 피복시 모든 처리구에서 관행시비구 이상의 수량성을 나타내었으며, 크림손클로버 피복시 질소 50% 처리구에서 관행 대비 95%의 수량성을 보였음
4. 녹비작물을 이용한 고구마 친환경 생산기술 개발
○ 녹비작물을 이용하여 친환경적으로 고구마를 생산 하고자 시험한 결과, 녹비작물의 생육량은 헤어리베치>호밀>보리의 순이었으며, 혼파를 할 경우도 같은 경향을 보였음
○ 고구마의 수량은 화학비료 시용에 비하여 녹비작물 투입 시 증가 되었으며, 특히 헤어리베치를 단독 투입 하거나 헤어리베치와 보리를 혼합 투입 시 현저하게 증가되는 경향을 보였음
○ 고구마의 황산화 성분 함량을 보면 화학비료 처리 비하여 녹비를 처리한 구가 양호하고 특히 헤어리베치 단독처리에서 폴리페놀과 플라보노이드 성분이 화학비료 시용보다 높게 나타나는 경향을 보였음
5. 질소고정이 높은 콩을 활용한 친환경 작부체계 개발
○ 초다근류 콩 재배 시 파종 후 일수에 따른 토양 내 총 질소 함량은 일반콩 대비 11~20%가 증가함
○ 초다근류 콩 재배 후 무비 처리한 청보리 재배시 수량은 관행시비에 비하여 차이가 없었으며, 사료가치 또한 유의적 차이가 없는 것으로 나타났음
6. 녹비작물 재배지에 적합한 벼 품종 선발
○ 고품질 벼 65품종을 대상으로 시험한 결과, 전체 품종들의 출수기 및 작물학적 특성에서는 헤어리베치 환원구와 화학비료 시용구 간에는 큰 차이가 없었음
○ 등숙율 및 쌀 수량에서는 화학비료 시용구에서 약 3% 정도 높거나 증수되었음
○ 쌀 외관 특성에서는 심백이나 복백에서는 거의 같았으나 유백미 및 청치량이 헤어리베치 투입구가 약간 많았음
○ 공시품종 중 남평, 다미, 보라미 등의 품종이 헤어리베치 투입구에서 미질이 다소 낮았으나 전체 품종에서는 쌀 외관의 차이는 미미하였음
○ 헤어리베치 환원구 재배지에 적합한 품종으로 강백, 동진2호, 만풍, 삼덕, 삼평, 새추청, 석정, 수라, 진수미, 청아, 청안, 추청, 풍미, 해찬물결, 화봉, 화영 등 다수 품종을 작물학적 제특성 및 쌀 품위 등을 고려하여 선발하였음
7. 자운영 이용 Green Rice 생산기술 개발 ○ 녹비작물의 월동율은 자운영과 헤어리베치의 각각 78.2%, 80.2%로 높았으나 크림손클로버는 23.4%로 낮았음
○ 녹비 건물생산량은 녹비작물 모두 5월 10일경에 가장 높았으며 헤어리베치>자운영>크림손클로버 순으로 높았음
○ 수확시기별 녹비종자의 발아율은 종자 성숙이 진전 될수록 낮았고 6월 4일 발아율은 9~21%이었음
○ 반면 종자성숙시기별 종자 활력은 자운영과 크림손클로버는 5월 25일에 수확해도 90% 이상으로 높았으나 헤어리베치는 종자활력이 33%(5월25일)~79%(6월4일)로 낮았음
○ 10a 당 쌀 수량은 개화기 토양환원시 50% 추가로 시비할 경우 관행 쌀 수량 578kg과 비슷하였고 결실기 토양환원시 25% 추가시비할 경우 관행과 비슷하였음
8. Self-reseeding 녹비작물을 이용한 콩 재배 연구
○ 콩을 5월28일 적기 파종할 경우, 콩생육기 잡초방제 효과가 양호하고, 콩 수확 후 들묵새의 재입모도 양호하였음
○ 피복작물 들묵새 이용 콩 재배 1년차는 문제 잡초발생이 없으나, 2년차는 망초, 바랭이, 클로버 등이 우점하였음
9. 녹비작물이용 원예작물 화학비료 절감 연구
○ 시설 엽채류 재배지에서 여름 휴작기간에 두과인 네마장황 및 세스바니아는 후작물 상추 재배 시에 화학비료 무시비가 수단그라스는 화학비료 50% 절감 가능
○ 시설 딸기재배에서 여름 휴작기에 네마장황 재배로 화학비료 사용량 50% 절감
○ 시설 수박재배에서 겨울 휴작기에 호밀 및 헤어리베치의 재배로 무시비 가능
Abstract
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1. Development of cultivation and utilizing technologies of green manure crops in rice-based cropping system
The cultivation of green manure crops plays an important role in soil quality and the sustainability of agricultural systems. Field experiments were conducted at Sinheung series (fine loam
1. Development of cultivation and utilizing technologies of green manure crops in rice-based cropping system
The cultivation of green manure crops plays an important role in soil quality and the sustainability of agricultural systems. Field experiments were conducted at Sinheung series (fine loamy, mixed, nonacid, mesic family of Fluvaquentic Endoaquepts) to develop utilizing technologies of green manure crops in rice-based cropping system. In field experiment to set up optimum seeding rate, the optimum seeding rate of hairy vetch(HV) was 6㎏/10a. In seed mixing experiment the biomass of green manure was the highest at Rye+HV(Rye+HV > Barly+HV > Rye > HV > Barly). Barly+HV showed more biomass and rice yield than crimson clover+HV. Other experiment was conducted from Oct. 2008 to Dec. 2012 to evaluate the effects of different seeding methods on the biomass, N production of green manure crops and rice yield. Seeding methods of hairy vetch consisted of Broadcasting Before Rice Harvesting (BBRH), Partial Tillage Seeding (PTS), Minimum Tillage Seeding (MTS), No Tillage Seeding (NTS), and Drill Seeding (DS). The biomass of hairy vetch was the highest both MTS and NTS among seeding methods. The rice yield of MTS and NTS increased significantly compared to convention fertilization (CF). Also soil chemical and physical properties were a little bit improved such as OM, bulk density by incorporation hairy vetch. But in 2013, the biomass of hairy vetch was very insufficient for rice cultivation because of cold damage of hairy vetch. When the yield of hairy vetch is insufficient for rice cultivation, oil cake is usually used as a alternative fertilizer in eco-friendly rice cultivation area. So another experiment was conducted to identify the proper amount of oil cake application as affected by hairy vetch yields in hairy vetch-rice cropping system. The biomass amounts of hairy vetch applied to experimental plots were 500, 1,000, 1,500kg/10a and in each plot oil cake was applied at the level of total N of hairy vetch and oil cake 1.0N(N amount by soil analysis), 1.2N(increased N by 20%) and 1.4N(increased N by 40%) respectively. Also there were experimental plot fertilized with N, P, K by soil analysis and the plot where no fertilizer was added. The results of this experiment showed that there were no significant difference among rice yields as affected by total N fertilization level of hairy vetch and oil cake in all experimental plots. Also there were no significant difference of rice yield between experimental plot fertilized by soil analysis and the experimental plots incorporated with green manure and oil cake. So, we could conclude that when the yield of hairy vetch is insufficient for rice cultivation, the proper application amount of oil cake is the amount that the total N of hairy vetch and oil cake is between 1.0N and 1.2N.
2. Development of No-tillage cultivation technologies of rice utilizing green manure crops
No-tillage cultivation has so far not been used practically. The reason was due to sowing on the surface of paddy fields. Thus, no-tillage and minimum tillage machine sown under dry paddy soils was developed. And new direct seeding method of rice was developed accordingly. A very large difference between the conventional method is that water-foxtail is used as a resource. Rice was sown at May 5 and then herbicides was treated at 12 days after sowing or just before emergence of rice. Herbicides were mixed and sprayed with glyphosate(300ml/10a), butachlor(200ml/10a) and urea(1kg/10a). Intermitted irrigation for 7 days from 20 days after sowing is necessary for a good seedlings. And then flooding is carried out after a good seedlings. Flooding and then spray the young seedlings’s herbicide. All other cultivation is the same as the conventional method.
3. Development of cultivation technologies for reduction of chemical fertilizer used in corn cultivation utilizing leguminous green manure crops
The use of winter cover crops in no-tillage corn production system can improve sustainability of production by reducing soil erosion and nutrient leaching, conserving soil moisture, suppressing weed growth and improving soil fertility. A field experiment was conducted at the test site of National Institute of Crop Science, Suwon, from 2009 through 2013 to evaluate the effectiveness of leguminous green manure crops on crop yield and soil fertility in a no-till corn cultivation. The effects of cover crops on weed control and soil conservation were also investigated. Two legume cover crops, hairy vetch(Vicia Villosa Roth) and crimson clover(Trifolium incarnuturn L.) were use as cover crop during winter period. The emergence of corn sown delayed several days compared to conventional, while the survival rate of corn was lower than that of conventional. At growing season, amount of runoff by rainfall in no-till corn field decreased by 77 to 87% in cover crop fields, so that the amount of soil erosion by rainfall runoff in no-till corn field decreased by 98 to 99%. At vegetative stage of corn, occurred weeds in hairy vetch and crimson clover fields were four and five species, respectively, while the weed wes occurred with nine species in conventional. Also, the dry weight od weed was decreased by 82 to 76% in hairy vetch and crimson clover fields compared to conventional. Fertilization resulted in significant yield increases in the crimson clover cover plots, possibly due to insufficient nitrogen supply by the cover crop. On the other hands, the effect of fertilization was not significant in the hairy vetch cover plots, which indicates that the cover crop can provide most of the nitrogen requirement of the corn in no-tillage system. The grain yield was positively correlated with increase in plant N uptake. Soil total nitrogen after harvest was slightly higher in crimson clover cover treatments than in other treatments, but the difference was small. Plant residues on the soil surface in all cover crop plots have substantial amounts of nitrogen even after harvest, ranging from 56 to 116 kg N ha-1. The C/N ratio of surface residue was low(C/N=16.77), which indicates organic residues on soil surface can be easily mineralized and contribute to soil nitrogen accumulation.
4. Development of eco-friendly cultivation technologies of sweet potato utilizing green manure crops
This study evaluated the effects of green manure on productivity and quality of sweet potato in upland soil. Green manure was sowed by sole or mixture application of hairy vetch, rye, and barely. Green manure grew well and growth status ordered hairy vetch, rye, and barely, irrespective of sowing types. The sweet potato yields and quality were compared with the NPK application by applying whole input of green manure in each plots. Input of green manure affected the improvements of yield and quality in sweet potato cultivation. The yield of sweet potato in NPK was 1600 kg/10a, but those of in green manure improved about 5-7% compared to the yield of NPK, which decreased the order following as hairy vetch, rye, and barely. Green manure was not affected sugar content of sweet potato irrespective of green manure and sowing types, except rye. However, the antioxidant and flavonoid of sweet potato were increased by input of hairy sole and the mixture of hairy vetch and barely. These results suggested that hairy vetch application could be alternative strategy to improve the productivity and quality of sweet potato in cropping systems.
5. Development of cultivation technologies for reduction of chemical fertilizer used in cultivation of horticultural crops utilizing green manure
Green manure crops (GMC) have several benefits, such as improving soil physical and chemical properties and utilizing excessive greenhouse nutrients that they have a potential to be a water pollutant source. The objective of this study was to investigate nitrogen (N) supplying capabilities of green manure crops for vegetables grown under greenhouse conditions. Vegetables with lettuce for leaf vegetable and strawberry and watermelon for fruit vegetable were tested. Two leguminous manures (Crotalaria juncea (Cr)) and Sesbania exaltata (Se)) and two graminaceous manures (Sorghum bicolor; Haussolgo (Ha) and Sudangrass (Sg)) can sow for un-cultivation period in summer, Rye (Secale cereale) and Hairy vetch (Vicia villosa) can used in winter. Green manure crops in the greenhouse were grown, cut, and incorporated into the greenhouse soil before planting. Firstly, Lettuce and Chinese cabbage were grown after incorporated green manure crops such as Cr., Se., Ha., and Sg. into the greenhouse soil. There was no significant difference in lettuce and Chinese cabbage yields under N treatments except control (0 kg/ha). Nitrogen use efficiency (NUE) was from 44% to 73% and the highest NUE was under Se. treatment. Secondly, The growth and yield of strawberry after soil incorporation of Cr are no significant different between Cr + Urea 0.5N and Urea 1.0N. Nitrate nitrogen on soil during strawberry cultivation is also similar between Cr + Urea 0.5N and Urea 1.0N. Thirdly, the growth and yield of watermelon after soil incorporation of green manure crops such as rye and hairy vetch are no significant different among GMC, GMC+Urea 0.5N, GMC+Urea 0.75N and Urea 1.0N because there are over 180 mg/kg nitrate nitrogen on soil before watermelon planting. However it is recommend to additional N supply plus GMC in watermelon cultivation because the weight of watermelon supplied only GMC is lighter than additional N supply plus GMC. These results suggest that incorporating green manure crops into soil or adding 0.5 N after incorporation of them can be beneficial in many ways in that it increases economic return because of yield increase, reduces the use of chemical N, and decreases the negative environmental impact on water quality because excessive N in the greenhouse soil can be used by green manure crops during the fallow.
6. Development of eco-friendly cropping system utilizing super-nodulating soybean
This study was aimed to establishment of environment-friendly cropping system with barley using super-nodulating soybean. The result of evaluation of super-nodulating soybean line was lower 100-seed weight and No. of branch than Taekwang, but higher No. of pod than Taekwang. That results indicated that super-nodulating soybean is necessary to high-density planting for higher yield than conventional planting density. In nodule formation according to days to after plant date, super-nodulating soybean was higher root nodule dry weight and fixation of total nitrogen(11∼20%) than check variety Taekwang. After cultivation of super-noculating soybean, total fresh weight of barley was 5,340kg 10a-1 in conventional fertilizer and 5,193kg 10a-1 in non fertilizer. The difference of total fresh yield between conventional and non fertilizer was 3%, but that was not significant in 5% DMRT. The feed value of barley parts was no significant in TDN, NDF and ADF. But crude protein content of barley leaf was higher than conventional fertilizer treatment. That resuts indicated that non-fertilized barley cultivation after hyper-nodule soybean harvest is praticable due to the fact that effect of nitrogen fixation by hyper-nodule soybean.
7. Selection of rice cutivars suitable for paddy field utilizing green manure
Experiments were conducted to select rice cultivars suitable for paddy field utilizing green manure. The results of the experiments were as follows. All cultivars show no differences for heading date and crop characteristics between hairy vetch and chemical fertilizer plot. Ratio of ripened grains and rice yield was higher about 3% in chemical fertilizer plot. The appearance characteristics of rice were simillar for the white belly rice and white core, but chalky kernel and green kernel was somewhat higher in hairy vetch plot. Cultivars of the Nampyeong, Dami, Borami showed lower rice quality in hairy vetch plot, but all varieties showed very slight difference in appearance of rice. Rice varieties suitable for rice cultivation area utilizing green manure crop were Gangbaek, Dongjin 2, Manpung, Samduk, Sampyeong, Saechucheong, Seokjeong, Sura, Jinsumi, Cheonga, Cheongan, Chucheong, Pungmi, Haechanmulkeol, Hwabong, Hwayoung.
8. Development of production technology of Green Rice utilizing milk vetch Winter survival rate, seed maturity, biomass production, and natural reseeding stand in fall of three green manures like Chinese milk vetch (CMV), crimson clover, and mamecho(the early mature hairy vetch cultivar), were evaluated in 2008/2009 to select most suitable green manure for natural reseeding in southern Korea. In the second experiment, the long term green manure effect of soil incorporation time of flowering stage and seed mature stages of CMV plants with different nitrogen rates were also investigated.
Winter survival rate was generally high in CMV and Mamecho with 78.2and 80.2%, respectively, while it was low in crimson clover with only 23.4%. Dry matter production was highest in mamecho followed by CMV and the crimson clover was least. Amount of nitrogen production pattern of the three green manures was similar trend to the dry matter production. Seeds of CMV and crimson clover were matured as early as May 25 showing above 90% viability based on the seed viability and 1,000-seed weight. However, mamecho showed low viability of 79% even at June 4 seed harvest time. Matured CMV and mamecho seeds were strongly dormant because of high hardseedness but mamecho seed has low hard seed probably due to high immature seed. Freshly harvested three green manure seeds germinated only 8% while clipping the seed coat completely overcome the innate dormancy, which indicates inhibition of germination of the seed is mainly due to seed coat(87%). Insufficient reseeding stand of three green manure in fall was regenerated because of frequent rainfall in fall.
To evaluate an appropriate nitrogen application rate in the early and late soil incorporation of CMV plant method for high quality rice production in Chinese milk vetch(CMV) grown rice field, in case of the low CMV plant biomass production of 1.5ton/10a, additional nitrogen application of 4.5ton/10a was needed to obtain a similar rice yield to the conventional rice mono cropping. The basal nitrogen application of the additional nitrogen gave the higher yield than that of tillering stage due to greater panicle number per square meter. Rice growth such as plant height was shorter and tiller numbers were lower in CMV grown rice field than the conventional rice mono cropping at early stage during the CMV decomposition period but they were similar at heading panicle initiation stage.
On the other hand, when the CMV plant biomass production was greater than 2.5ton/10a, additional nitrogen application was not necessary due to high insect incidence and field lodging caused by nitrogen surplus by CMV until later stage of rice. The ripened grain ratio was generally similar to that in the 1.5ton/10a CMV plant biomass production but it was low in 4.5ton/10a biomass production.
Growth, milled rice yield and quality of rice in naturally reseeded Chinese milk vetch(CMV)-rice cropping system was compared with that those in rice mono cropping on silty loam soil in Milyang from 2006-2008. Practicing natural reseeding technology recorded high CMV reseeding stand ranging from 565-805 plants m-2 and resulting in the production of 13.0-17.0 kg N/10a from the CMV plant biomass which is greater than the recommendation rate of 9kgN/10a. The plant height of rice plant grown in natural reseeding field is shorter at tillering stage but it was similar to the rice mono cropping at later stage. Dry matter production had similar trend to plant height. On the other hand, the leaf color in naturally reseeded CMV-rice cropping system was similar to the rice mono cropping up to panicle heading stage but it was high at mature stage, indicating that the nitrogen was provided by the CMV decomposition until later stage of rice. The yield components such as culm number m-2 was greater and 1,000-brown rice weight was heavier than those of rice mono cropping but the ripened grain ratio was lower in naturally reseeded CMV-rice cropping system. Milled rice yield of naturally reseeded CMV-rice cropping system was similar to that of rice mono cropping. However, head rice percentage of milled rice was lower due to low ripened grain ratio. This result indicates that natural CMV reseeding technology can completely replace chemical fertilizer in CMV-rice cropping system
9. Development of cultivation technology of soybean utilizing self-reseeding green manure crops
Rotary tillage on or about October 1 each year promoted the self-reseeding of rattail fescue. The effect of weed control in soybean cultivation using cover crop rattail fescue was very excellent. And growth and yield of soybean was good.
목차 Contents
- 표지 ... 1
- 제 출 문 ... 2
- 요 약 문 ... 3
- SUMMARY ... 8
- 목차 ... 14
- 제 1 장 서 론 ... 15
- 제 1 절 답리작 녹비작물 안전 재배 및 이용 기술 개발 ... 15
- 제 2 절 녹비작물을 이용한 벼 무경운 재배기술 개발 ... 15
- 제 3 절 두과 녹비작물을 이용한 화학비료 절감 연구 ... 16
- 제 4 절 녹비작물을 이용한 고구마 친환경 생산기술 개발 ... 17
- 제 5 절 질소고정이 높은 콩을 활용한 친환경 작부체계 개발 ... 17
- 제 6 절 녹비작물 재배지에 적합한 벼 품종 개발 ... 18
- 제 7 절 자운영 이용 Green Rice 생산기술 개발 ... 18
- 제 8 절 Self-reseeding 녹비작물을 이용한 콩 재배 연구 ... 20
- 제 9 절 녹비작물을 이용 원예작물 화학비료 절감 연구 ... 20
- 제 2 장 국내외 기술개발 현황 ... 21
- 제 1 절 답리작 녹비작물 안전재배 및 이용기술 개발 ... 21
- 제 2 절 녹비작물을 이용한 벼 무경운 재배기술 개발 ... 22
- 제 3 절 두과 녹비작물을 이용한 화학비료 절감 연구 ... 22
- 제 4 절 녹비작물을 이용한 고구마 친환경 생산기술 개발 ... 23
- 제 5 절 질소고정이 높은 콩을 활용한 친환경 작부체계 개발 ... 23
- 제 6 절 녹비작물 재배지에 적합한 벼 품종 개발 ... 23
- 제 7 절 자운영 이용 Green Rice 생산기술 개발 ... 23
- 제 8 절 Self-reseeding 녹비작물을 이용한 콩 재배 연구 ... 24
- 제 9 절 녹비작물을 이용 원예작물 화학비료 절감 연구 ... 24
- 제 3 장 연구개발 수행 내용 및 결과 ... 25
- 제 1 절 답리작 녹비작물 안전재배 및 이용기술 개발 ... 25
- 제 2 절 녹비작물을 이용한 벼 무경운 재배기술 개발 ... 42
- 제 3 절 두과 녹비작물을 이용한 옥수수 화학비료 절감 연구 ... 60
- 제 4 절 녹비작물을 이용한 고구마 친환경 생산기술 개발 ... 85
- 제 5 절 질소고정이 높은 콩을 활용한 친환경 작부체계 개발 ... 91
- 제 6 절 녹비작물 재배지에 적합한 벼 품종 개발 ... 97
- 제 7 절 자운영 이용 Green Rice 생산기술 개발 ... 102
- 제 8 절 Self-reseeding 녹비작물을 이용한 콩 재배 연구 ... 111
- 제 9 절 녹비작물을 이용 원예작물 화학비료 절감 연구 ... 114
- 제 4 장 연구개발 목표 달성도 및 대외 기여도 ... 124
- 제 1 절 목표대비 대외 달성도 ... 124
- 제 2 절 정량적 성과 ... 127
- 제 5 장 연구개발결과의 활용계획 ... 135
- 제 6 장 연구개발과정에서 수집한 해외과학기술정보 ... 136
- 제 7 장 기타 중요 변동사항 ... 136
- 제 8 장 국가과학기술종합정보시스템에 등록한 연구장비 현황 ... 136
- 제 9 장 참고문헌 ... 137
- 끝페이지 ... 143
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