• Title, Summary, Keyword: Cropping system

Search Result 504, Processing Time 0.133 seconds

Yield and Nitrogen Uptake under Reduced Nitrogen Fertilizer during Early Growth of Rice in the Rice-Barley Double Cropping System

  • Seo, Jong-Ho;Cho, Hyeon-Suk;Kim, Chung-Guk;Lee, Jin-Mo;Park, Seong-Ho
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.49 no.1
    • /
    • pp.1-6
    • /
    • 2004
  • N fertilizer required by rice could be reduced greatly in the rice-barley double cropping system than in the rice single cropping system. This study was conducted to investigate how much of the N fertilizer during the early stage of rice in the rice-barley double cropping system, could be saved compared to that in the rice single cropping system. This experiment was carried out at the paddy field of the National Crop Experiment Station in Suwon, Korea during three years from 1999 to 2001. Amounts of soil mineral nitrogen (SMN) and SPAD values of rice leaf during rice growing season in the rice-barley double cropping system were higher than those in the rice single cropping system under the same amount of N application during two years. Yield and N uptakes of rice at harvesting time were also higher in the rice-barley double cropping system than in the rice single cropping system during two years. Yield and N uptake of rice in the rice single cropping system were decreased when basal N fertilizer was omitted, but those reductions were not found by either omitting basal N fertilizer or omitting N fertilizer at tillering stage in the rice-barley double cropping system during 2000 and 2001. But yield and N uptakes of rice were decreased by 70 kg/10a and 2kgN/10a by the omission of both N application at basal and tillering stages in the rice-barley double cropping system in 2002. It was concluded that N fertilizer as much as tillering N fertilizer could be saved in the rice-barley double cropping system.

Survey of major cropping system using paddy field in Korea

  • Choi, Weon Young;Hwang, Chung Dong;Seo, Jong Ho;Kim, Sang Yeol;Oh, Myung Kyu;Yoo, Sueng Oh
    • Proceedings of the Korean Society of Crop Science Conference
    • /
    • /
    • pp.343-343
    • /
    • 2017
  • This study was conducted to investigate cropping system using paddy field in 152 cities and counties of Korea. Out of the 152 cities and counties, 106 regions responded(70%). The number of cultivated crops in 2 and 3 cropping system using paddy field was 48 crops. Among these, 35 crops were cultivated in winter and spring, 27 crops were cultivated in summer and fall. There were 33 crops in paddy field after cultivating rice. Among these, 11 crops were cultivated in spring and 26 crops were in fall-winter. There were 44 crops in paddy field without cultivating rice. Among these, 19 crops were cultivated in spring, 27 crops were in summer, 15 crops were in fall. Total cropping systems in Korea were 138 types, 2 cropping system were 119, among them outdoor crops were 77, using facility crops were 42, and 3 cropping system crops were 19. Cropping system of Jeonbuk province was 45 types and it was the most in Korea. Cropping systems of southern area were more various than those of middle-northern area in Korea.

  • PDF

Income Analysis on upland cropping system in Southern part (남부권 전작목(田作目)의 작부유형별 소득분석)

  • Kim, Chung-Sil;Lee, Hyun-Keun
    • Current Research on Agriculture and Life Sciences
    • /
    • v.26
    • /
    • pp.1-5
    • /
    • 2008
  • The purpose of this study is to describe some common upland cropping system in Youngnam and Honam region and to analyze it's income by the system. The main results are as follows; First, there are common cropping systems consisting of "sweet potato+barely", "corn+barely" and "bean+barely". Second, the highest earning system in Youngnam region is a "sweet potato+barely" (934,544won/10a) and that in Honam region is a "sweet potato+barely"(1,210,523won/10a) respectively. Third, in the differences of the cropping system's income level between Youngnam and Honam region, the former is higher than the latter in "corn+barely" and "bean+barely" respectively.

  • PDF

An Analysis on Regional Farm System - A Case of Kyung-Ju Area - (지역영농체계 분석 사례연구 - 경주지역을 중심으로 -)

  • Kim, Chung Sil
    • Current Research on Agriculture and Life Sciences
    • /
    • v.13
    • /
    • pp.71-83
    • /
    • 1995
  • The purposes of this study are to classify farm area and to develop farm system by region. The factor analysis was used as a main analysing tool to approach these purposes in this study. The farming of Kyung-Ju area in cropping sector is classified into 11 cropping systems. The distribution of specialized regions is very distinctive by the cropping systems. The specialized regions resulted from this analysis are different by factor. An efficient means to raise agricultural competitive power is to realize farm specialization by region according to productivity factor.

  • PDF

Studies on the Cropping System of Sesame(Sesamum indicum L.) of Korea (전.후작물 도입에 의한 참깨 작부체계에 관한 연구)

  • 남상영;김인재;김민자;이철희;김태수;방진기
    • Korean Journal of Plant Resources
    • /
    • v.17 no.2
    • /
    • pp.147-152
    • /
    • 2004
  • To increase the utilization of farming lard and the income of farmers four cropping systems by introducing two crops in the cultivation of sesame and perilla were tested from May, 2001 to June, 2002. Weed occurrence was observed abunantly at the in barley+sesame cropping system. Among cropping systems, weed in barley+sesame was greater in post-crop than in pre-crop, but other cropping systems were in pre-crop. Pre- or post-crops at the barley+sesame, sesame+chinese cabbage showed good growth. The income of cropping system containing sesame was higher 21% and 61% in barley+sesame and sesame+chinese cabbage, than in sesame and perilla mono-crop systems respectively. The sesame+chinese cabbage was labor-saying and cost down cropping system, because polyethylene film of pre-crop was reused in post-crop. But when perilla was introduced as post-crop of sesame, the delayed seed time resulted in decreased growth and grain yield. Soil physical properties were improved at the sesame+chinese cabbage and barley+sesame cropping systems.

Nitrogen Balance and Biological Nitrogen Fixation of Soybean in Soybean-Barley Cropping System

  • Park Sei Joon;Kim Wook Han;Lee Jae Eun;Kwon Young Up;Shin Jin Chul;Ryu Yong Hwan;Seong Rak Chun
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.50 no.1
    • /
    • pp.1-4
    • /
    • 2005
  • This experiment was conducted to investigate the soil nitrogen credit of biological nitrogen fixation (BNF) and the nitrogen balance of soybean in soybean-barley cropping systems. Soybean cultivar, Shinpaldalkong2 and barley cultivar, Olbori, were used in soybean mono-cropping (SM), barley monocropping (BM), and barley­soybean double cropping system. The barley-soybean double cropping system was treated with two different levels of nitrogen fertilizers, 0 nitrogen fertilizer (BS-F0), and standard nitrogen fertilizer (BS-F1). Nitrogen and organic matter concentrations in soil of BS-F1 plot on October, 2001 were increased $4.8\%\;and\;5.9\%$, respectively, compared with those on October, 2000. The ranges of BNF rate in soybean were $69.1\~ 88.2\%$ in two years, and the rate was the highest in BS-F0 plot and the lowest in SM plot. The ranges of nitrogen harvest index (NHI) in all treatments were $83.9\~86.7\%$. The yield was 270 kg/10a in BS­F1 plot and 215 kg/10a in BS-F0 plot. However, the nitrogen balances were +0.6 kg/10a of gain of soil nitrogen in BS-F0 plot and -0.4 kg/10a of loss of soil nitrogen in BS-F1 plot. In comparisons of SM and BS-F1 plots, although the seed yields were similar in two plots, the loss of soil nitrogen was higher in SM than BS-F1 plot. Overall, our results suggest that barley-soybean double cropping system was more effective in respect to seed productivity and soil nitrogen conservation than soybean monocropping system, and the N credit to following crops by soybean cultivation was identified in soybean double cropping system.

Studies on the Cropping System of Perilla in Middle Provinces of Korea (전.후작물 도입에 의한 중부지역 들깨 작부체계에 관한 연구)

  • 남상영;김인재;김민자;이철희;김태수;박충범
    • Korean Journal of Plant Resources
    • /
    • v.16 no.2
    • /
    • pp.134-140
    • /
    • 2003
  • To increase self-sufficiency ratio and agricultural income, six cropping systems by introducing several crops in perilla were tested from 2001 and 2002. Weed occurrence was high in barley+perilla and safflower+perilla cropping system. Pre-and post-crops in barley+perilla and safflower+perilla showed good growth. Safflower+perilla cropping system was labor-saying and cost down because polyethylene film of pre-crop was reused in post-crop. But when perilla was introduced as post-crop of sesame, delayed seed date resulted in decreased growth and grain yield. The income in barley+perilla and safflower+perilla was greater 4.1fold and 5.2fold, respectively than in perilla mono-crop system. Soil physical properties were improved in order of safflower+perilla, barley+perilla cropping system.

Studies on cropping system for year-round forage crops production

  • Kang, Heonil;Lee, Donghyun;Han, Sangcheol;Choi, Insoo;Yun, Eulsoo;Lee, Jongki
    • Proceedings of the Korean Society of Crop Science Conference
    • /
    • /
    • pp.333-333
    • /
    • 2017
  • This study was conducted to establish of cropping system for year-round forage crops production in east-southern part of Korea and investigated their productivity and feed values. Cropping systems were tested in experiment using oat (cv. Highspeed and Darkhorse) in spring and autumn season, corn (cv. Kwangpyeongok) and sorghum (ss-450) in summer season and rye (cv. Gogu) and triticale (cv. Joseong) in winter season. Considering the forage productivity and feed value such as acid detergent fiber (ADF), neutral detergent fiber (NDF) and total digestive nutrients (TDN), this result suggest that three cropping system for year-round forage crops production. The combinations with triticale (winter), corn or sorghum (summer) and oat (autumn) were would be suitable ones. And also the combinations with rye (winter), corn or sorghum (summer) and oat (autumn) were would be suitable. If forage crops cultivation was started in spring season, the combinations with oat (spring), oat (autumn), triticale or rye (winter), corn or sorghum (summer) and oat (autumn) were would be appropriable. For the more suitable cropping system, we are proceeding on verification experiment of year-round forage crops.

  • PDF

Changes in Profitability of a Double Cropping using the Carbon Fixation Method (탄소고정방식을 활용한 농작물 이모작의 수익성 변화)

  • Mo, Tae-Jun;Kim, Brian H.S.
    • Journal of Korean Society of Rural Planning
    • /
    • v.26 no.2
    • /
    • pp.61-70
    • /
    • 2020
  • The purpose of this study is to calculate the annual carbon reduction of crops according to the carbon fixation method of agricultural land, therefore to analyze whether the economic inducement of farmers to switch from single cropping to double cropping if the amount of carbon reduction were traded on the Korea Exchange. The analysis targets were Gyeonggi Province, which was divided into four areas to compare the difference between agricultural income and carbon income by crop and cropping system. Agricultural profit was estimated by multiplying the prior data of 2012 by the change rate of the consumer price index, and carbon income was calculated through the carbon reduction for each crop and the average transaction price of KAU19 traded on the Korea Exchange. According to the analysis, the profit rate of double cropping in all areas is -110.4% to 23% compared to single cropping, when only agricultural profit is taken into account, with no economic inducement for farmers to change the cropping system. However, when carbon income is taken into account together, the profit rate of double cropping rises significantly from 122.5% to 238.9% over a single operation in all areas, resulting in an economic inducement to switch the cropping system. This research is meaningful in that farming households could raise their income by additional carbon income, and that carbon credits could be supplied at Korea Exchange to further boost the carbon emission exchange.

Simple Self Trap Cropping System to Control Tukra Mealy Bug (Maconellicoccus hirsutus Green) Incidence on Mulberry (Morus spp.)

  • Latha, K. Lavanya;Rao, T.V.S.S.;Rao, J. V. Krishna;Jayaraj, S.;Reddy, N. Sivarami;Naik, S. Sankar
    • International Journal of Industrial Entomology
    • /
    • v.17 no.2
    • /
    • pp.201-203
    • /
    • 2008
  • A field study on self trap cropping system in controlling tukra mealy bug Maconellicoccus hirsutus Green) incidence on mulberry (Morus spp.; V-1 variety; $3'{\times}3'$ spacing) gardens was undertaken in selected sericulture farmers' mulberry gardens of Pydeti village (Parigi Mandal, Anantapur District, Andhra Pradesh, India). The study was conducted for three years (2004, 2005 and 2006). Four treatments (T0; control/no treatment, T1; self trap cropping rows with 10 row interval, T2; self trap cropping rows with 10 row interval and treating these rows only with 0.5% neem oil emulsion and T3; self trap cropping rows with 10 rows intervals and treating all the mulberry rows including self trap cropping rows with 0.5% neem oil emulsion) were considered. The results indicated that the incidence increased in T0 and T1 while the same suppressed in T2 and T3. The suppression (%) of tukra incidence between T2 and T3 was not significant. Hence, T2 only was recommended to farmers as its economical viable practice. The results are discussed based on the importance of tukra, its suppression and cost of treatment.