• 제목, 요약, 키워드: Green manure

검색결과 293건 처리시간 0.03초

Screen of Green Manure Crops for Cultivation on Agricultural Land with Spring Season in the Central Regions of Korea

  • Cho, Hyeon-Suk;Seo, Myung-Chul;Kim, Jun-Hwan;Sang, Wan-gyu;Shin, Pyeong;Lee, Geon Hwi
    • 한국토양비료학회지
    • /
    • v.48 no.6
    • /
    • pp.689-696
    • /
    • 2015
  • The green manure crops are returned to soil when the plants are still green. The green manure crops play a role in reducing chemical fertilizers, improvement of soil fertility, reduction of soil erosion, weed control, and landscapes effect. Typical green manure crops are barley green manure, hairy vetch, chines milk vetch and clovers. We sowed 49 species of green manure crops in upland soil to increase the usage of green manure crops. We searched the effectiveness of green manure yield, C/N ratio, soil mulching, and landscape effect. The green manure crops that have $5tonha^{-1}$ or more of green manure yield (fresh weight) were 6 gramineous crops, 4 leguminous crops, and 3 others. Green manures yield in a short growth period was higher in gramineous crops than leguminous crops. Among the green manure crops, 3 gramineous crops, 12 leguminous crops, and 3 others were under 25 in C/N ratio. Seven gramineous crops, 8 leguminous crops, and 5 others were over 50% of soil covering rate. Green manure crops that have beautiful flowers were in total 16 kinds, such as 4 gramineous crops, 6 leguminous crops, and 6 others. In result, based on green manure yield and C/N ratio, excellent species in the green manure crops were 4 species (triticale, 2 kinds of hairy vetch, and lupin). Green manure crops that were effective at soil mulching were 20 species, like hairy vetch, oats, sorghum, phacelia, buckwheat, etc. Buckwheat, crotalaria, mustard plant, phacelia, and etc. could be available for landscape crops.

녹비작물 환원에 따른 벼 재배지 인산수지 평가 (Evaluation of Phosphorus Balance in Green Manure-Rice Cropping Systems with Different Incorporation Rate of Green Manure Crops)

  • 김태영;아일린;파리둘;김필주;이용복
    • 한국환경농학회지
    • /
    • v.31 no.4
    • /
    • pp.378-380
    • /
    • 2012
  • BACKGROUND: In Korea, green manure has been cultivated for reducing chemical fertilizer application, maintaining soil fertility, and feeding livestock in winter season. We evaluated the phosphate balance under green manure-rice cultivating system with different removal rates of green manure for maintaining soil fertility. METHODS AND RESULTS: The barley and hairy vetch mixture was selected as the green manure in this study. The barley and hairy vetch was sowed at a rate of 135 and 23 kg/ha, respectively, without fertilizer application. Total aboveground biomass was 12000 (barley: 5400 kg/ha, hairy vetch: 6600 kg/ha) kg/ha, and these green manure were incorporated with different input rates before rice planting. The input rates of green manure in this study were 0 (NPK+0%), 25 (NPK+25%), 50 (NPK+50%), 75 (NPK+75%) and 100 % (NPK+100) and the standard fertilization (NPK) without green manure cultivation. All treatments were applied with standard fertilizer (N-P-K: 90-19.6-48.3 kg/ha) before rice planting. The highest rice yield was observed in NPK+50% which was 20% higher compared with NPK. The phosphate balance with different incorporation rates of green manure was-104.0,-76.8,-52.9,-27.4, and 6.0 kg/ha for NPK+0%, NPK+25%, NPK+50%, NPK+75%, and NPK+100%, respectively. CONCLUSION(S): The use of green manure for livestock feeding in green manure-rice cropping systems could remove a huge amount of phosphate. This cropping system strongly requires phosphate application before green manure seeding for maintaining soil fertility.

Effects of Liquid Pig Manure on Yield and Nutrition Supply of Green Manure Crops in Jeju

  • Kang, Ho-Jun;Yang, Sang-Ho;Kim, Yu-Kyoung;Jwa, Chang-Sook;Moon, Bong-Chun;Moon, Chae-Ran;Ko, Bok-Hee;Jung, Dae-Cheun
    • 한국토양비료학회지
    • /
    • v.48 no.6
    • /
    • pp.731-735
    • /
    • 2015
  • The effects of liquid pig manure (LPM) on the yield and nutrient supply of green manure crops, such as hairy vetch alone and hairy vetch + rye mixture, were investigated. We used three treatments: no-fertilizer (NF); LPM, $4.0t10a^{-1}$ ($N-P_2O_5-K_2O=4.0-0.024-4.0kg10a^{-1}$); and chemical fertilizer (CF; $N-P_2O_5-K_2O=4.0-0-4.0kg10a^{-1}$). The green manure crops, namely, Vicia villosa Roth. (hairy vetch) and Secale cereale L. (rye). were sown on March 11 and harvested on June 24, 2014. Yield of green manure crops significantly increased in hairy vetch + rye mixture plot compared with the hairy vetch alone plot. In hairy vetch alone plot, yield of green manure crops was increased by application of LPM and CF, but there were no significant differences. Yield of green manure crops in hairy vetch + rye fresh mixture plot significantly increased by the LPM and CF treatments, but no difference was noted between the LPM and CF treatments. Nitrogen supply by the green manure crops was higher in hairy vetch + rye mixture plot than hairy vetch alone plot. However, there was no significant difference. Phosphorus and potassium supply significantly increased in hairy vetch + rye mixture plot compared with hairy vetch alone plot. By treating LPM and CF, the nitrogen, phosphorus and potassium supply were higher than those in no fertilizer. In conclusion, LPM could replace CF. When planting green manure crops, the hairy vetch + rye mixture was more effective than hairy vetch alone to effectively use green manure crops.

Changes of Soil Properties and Temperature by Green Manure under Rice-based Cropping System

  • Jeon, Weon-Tai;Kim, Min-Tae;Seong, Ki-Yeong;Lee, Jong-Ki;Oh, In-Seok;Park, Sung-Tae
    • 한국작물학회지
    • /
    • v.53 no.4
    • /
    • pp.413-416
    • /
    • 2008
  • The cultivation of green manure crop is considered as a good management practice by increasing soil organic matter and fertility levels. This experiment was conducted to improve the soil environment under rice-based cropping system at paddy soil (fine loamy, mixed, nonacid, mesic, family of Aeric Fluventic Haplaquepts) in National Institute of Crop Science (NICS), Korea in 2006 to 2007. The variation of soil temperature in green manure plots was lower than without green manure (control) during spring season (April to May). The temperature variation of no tillage plot (broadcast before rice harvest) was the lowest among treatments. After green manure cropping, the soil bulk density and porosity ratio were improved at the top soil. The production of green manure was the highest athairy vetch and barley mixture plot by partial tillage. However, mixture treatment had no improvement on soil organic matter. After rice cropping with green manure application, soil quality was improved such as soil physical properties except mixture treatment. Therefore, we suggest that soil quality should be improved by green manure cultivation under rice-based cropping system.

Assessment of Sustainable Production on Paddy Field Treated with Green Manure Crops Using Sustainability Index

  • Kim, Kwang Seop;Kim, Sook-Jin;Park, Ki Do;Lee, Choon-Woo;Ryu, Jin-Hee;Choi, Jong-Seo;Jeon, Weon-Tai;Kang, Hang-Won;Kim, Min-Tae
    • 한국토양비료학회지
    • /
    • v.47 no.3
    • /
    • pp.165-171
    • /
    • 2014
  • Assessment of sustainable production on a cropland can help to determine the most proper management practices. In this study, we evaluated the sustainable production on paddy field treated with green manure crops using sustainability index which based on nutrient index, microbiological index, and crop index related to nutrient-supplying capacity. Especially choosing appropriate indicators from a minimum data set (MDS) were used the principal components analysis (SI-2) as well as expert opinion (SI-1) usually used in sustainability index. Six treatments including the two tillage treatments and two green manure crops were investigated as follows; (i) moldrotary + rotary tillage without green manure crop (Con), with (ii) hairy vetch (Con-HV), and (iii) hairy vetch + green barely (Con-HV+GB), (iv) rotary tillage without green manure crop (Rot), with (ii) hairy vetch (Rot-HV), and (iii) hairy vetch + green barly (Rot-HV+GB). Con-HV and Rot-HV in SI-1 were maintained sustainability while Rot-HV and Rot-HV+GB in SI-2. Especially, treatments (Con and Rot) without green manure crops were more unsustainable than with green manure crops because of the low value of microbiological and crop index than with green manure crops. Meanwhile, sustainability indices and grain yield had the high correlation values ($R^2=0.756$ and 0.928 in SI-1 and SI-2, respectively). These results meant that application of green manure crops such as hairy vetch could improve both yield and soil quality in paddy.

신규 유기농경지 토양의 유기물 공급이 토양 미생물군집에 미치는 영향 (Effects of Organic Matter Application on Soil Microbial Community in a Newly Reclaimed Soil)

  • 안난희;옥정훈;조정래;신재훈;남홍식;김석철
    • 한국유기농업학회지
    • /
    • v.23 no.4
    • /
    • pp.767-779
    • /
    • 2015
  • 본 연구에서는 신규 개간지 유기농경지에서 가축분퇴비와 녹비작물을 2년간 연용하였을 때 유기물에 의한 밭 토양미생물 군집에 미치는 영향을 평가하고자 수행하였다. 가축분 퇴비와 녹비를 연용한 처리구는 화학비료와 무비 처리구에 비해 유기물 함량이 증가하였다. 세균과 사상균 개체수는 유기물을 연용 할수록 유기물 처리구와 화학비료 그리고 무비 처리구간의 유의적인 차이를 나타내었다. 또한 가축분 퇴비와 녹비 연용으로 토양 미생물체량은 모든 처리구가 증가하였으며 NPK와 무비구에 비해 퇴비, 녹비 처리구에서 높게 나타났다. 유기물 연용에 의한 토양미생물 군집의 기능적 다양성 분석에서 가축분 퇴비, 녹비 처리구가 화학비료나 무비구에 비해 기질 이용도가 유의적으로 증가하였으며 유기물 처리구가 화학비료나 무비구에 비해 높은 종 다양성을 나타냈다. 그리고 주성분 분석에서 제2주성분에 의해 유기물 처리구와 그렇지 않은 화학비료, 무비구로 분리되었다.

Evaluation on Soil Characterization in Paddy Treated with Different Green Manure Crops and Tillage Method by Ordination Technique

  • Kim, Kwang Seop;Park, Ki Do;Kim, Suk-Jin;Choi, Jong-Seo;Lee, Yong Bok;Kim, Min-Tae
    • 한국토양비료학회지
    • /
    • v.48 no.4
    • /
    • pp.285-294
    • /
    • 2015
  • Ordination has been recognized useful method to analyze the effects of multiple environmental factors on dozens of species in vegetation ecology because of summarizing community data by producing a low-dimensional graphics. Main objective of this study was the application of ordination method, especially principal components analysis (PCA), to analyze the soil characterization on paddy treated by different green manure crops and tillage methods. Treatments included the three tillage treatments and two green manure crops as the following; (i) moldrotary + rotary tillage without green manure crop (Con), with (ii) hairy vetch (ConHv), and (iii) hairy vetch + green barely (ConHvGb), (iv) rotary tillage without green manure crop (Rot), with (v) hairy vetch (RotHv), and (vi) hairy vetch + green barly (RotHvGb), and (vii) no-tillage (Notill). Vectorial distance result from PCA of soil properties including physical, chemical, and microbial properties showed the two main difference. Firstly, soil properties among plots without green manure were strongly affected by tillage strength [Vectorial distance: Con-Notil (5.88) > Rot-Notill (4.58)] at PC1 (35.0%) axis. But it was difficult to find the fixed trend among plots when green manure crop was added in plot. Nevertheless, two groups were separated by adding green manure crop at PC2 (29.2%) axis. These results show that PCA ordination methods could be used the research for change of soil characterization.

Cutting Frequency and Liquid Manure Application on Green Manure Production of Rye and Hairy Vetch in Pear Orchard

  • Lee, Seong Eun;Park, Jin Myeon;Noh, Jae Seung;Lim, Tae Jun;Choi, Dong Geun
    • 한국토양비료학회지
    • /
    • v.46 no.5
    • /
    • pp.322-326
    • /
    • 2013
  • Many organic fruit growers adopt cover cropping in their orchards to improve soil properties. A field experiment was conducted to determine the effects of cutting frequency of cover crop (CF) and liquid manure application (LM) on green manure production (GMP) and returnable nutrient content (RNC) in pear orchard. The combined effects of CF and LM were tested at two levels, respectively, with liquid manure ($L_1$) and without liquid manure ($L_0$). After that, cover crops were cut once ($C_1$) and three times ($C_3$) in rye, and twice ($C_2$) and four times ($C_4$) in hairy vetch. The result showed that main factors related to green manure production were different depending on the species. In rye, LM was more effective in increasing the dry weight of cover crop and RNC than CF. In contrast, the parameters were more affected by CF rather than LM in hairy vetch. Thus, it is suggested that different management technique is needed depending on the cover crop species in order to maximize the green manure production in pear orchard.

The effect of liquid swine manure application rate on the production of green manure crops in paddy

  • Choi, Jong-Seo;Kim, Sook-Jin;Kang, Shingu;Park, Jeong Hwa;Yoon, Young-Hwan;Yang, Woonho
    • 한국작물학회:학술대회논문집
    • /
    • /
    • pp.209-209
    • /
    • 2017
  • The application of liquid swine manure to soil has been commonly reported to increase crop productivity by improving plant nutrient availability. This study was conducted to investigate the effect of liquid swine manure (LSM) application on yield of green manure crops in paddy. Three different application rates of LSM equivalent to 25%, 50%, and 75% of standard fertilization rate of P were applied to the paddy field after rice harvest, and two cover crops, hairy vetch (Vicia villosa Roth) and barley (Hordeum vulgare L.), were subsequently mix-seeded and cultivated. Plant height of barley was 7% higher in LSM P25% and LSM P50% compared to control treatment (no LSM application), while no significant difference was observed between LSM P75% and control. However, there were no significant differences in plant height of hairy vetch among treatments. Dry matter (DM) yield of green manure increased with LSM application rate, reaching a maximum at LSM P50% (38 and 17% yield increase over control for hairy vetch and barley, respectively), but it decreased at LSM P75% rate. Nitrogen production by green manure crops was the highest in LSM P50% treatment, where the amount of produced N was 57% higher than the optimum N fertilization level for rice ($90kg\;N\;ha^{-1}$). Excess green manure biomass above an optimum level can be removed and utilized either for incorporation into nearby cropland or for sale as fresh forage. Therefore, it is concluded that the application rate of LSM P50% is recommendable for the maximum biomass and nitrogen production from green manure crops in paddy.

  • PDF

고랭지에서 녹비 생산성 증진을 위한 헤어리베치와 호밀 혼파 재배 효과 (Effect of Mixed Sowing of Hairy Vetch and Rye on Green Manure Yield in Mountainous Highland)

  • 김세원;서영호;최용범;안문섭;강안석
    • 한국토양비료학회지
    • /
    • v.44 no.3
    • /
    • pp.442-447
    • /
    • 2011
  • Co-incorporation of Leguminosae with Gramineae could reduce the risk of nitrogen starvation phenomena caused by appling green manure of Gramineae alone. The objective of the study was to examine the effect of mixed sowing of hairy vetch and rye seeds on soil quality in mountainous highland. Mixed sowing of hairy vetch and rye increased the yield of green manure and nutrients compared with those for sowing of hairy vetch or rye alone. The yield of green manure from row seeding was $5.3Mg\;ha^{-1}$ compared with $4.8Mg\;ha^{-1}$ for broadcast seeding. Incorporation of the two green manure crops increased yield of red-bean by 58~92% as compared with yield for incorporation of rye alone. The results obtained in the study imply that mixed sowing of hairy vetch and rye can solve the problem of low emergence of hairy vetch in spring and high C/N ratio and rough incorporation of rye, in addition to increase in yield of green manure.