scholarly journals Keragaan Agronomis dan Kelayakan Usahatani Kedelai yang Dibudidayakan Secara Monokultur dan Polikultur di Sumatera Selatan

2019 ◽  
Vol 8 (2) ◽  
pp. 159-172
Author(s):  
Renny Utami Somantri ◽  
Syahri Syahri ◽  
Tumarlan Thamrin
Keyword(s):  
Economic Analysis ◽  
Limiting Factors ◽  
Agronomic Performance ◽  
Land Equivalent Ratio ◽  
Soybean Yield ◽  
Equivalent Ratio ◽  
Two Systems ◽  
Planting Distance ◽  
Better Than

Somantri RU, Syahri S, Thamrin T. 2019. Agronomic and economic analysis of soybeans which is grew by monoculture and polyculture systems in South Sumatra. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):159-172.  The presence of shade and other limiting factors in the crops of plantation plants will certainly affect the growth and soybean yield were compared by monoculture. The objective of the research was to know of agronomic performance and farming feasibility of soybeans which are cultivated by polyculture and monoculture systems. Soybeans were planted in two systems namely monoculture (soybean) and polyculture (soybean are intercropped with 3 years of rubber trees).  Both of Dena 1 and Anjasmoro varieties were cropped in those systems. Soybeans are cropped by using planting machine (ATBJ) which has planting distance 20 cm x 40 cm (1-2 seeds per hole). Plants were fertilized with 50 kg Urea per ha, 150 kg TSP per ha, 150 kg KCl per ha, manure 2,000 kg per ha, and dolomite 1,000 kg per ha. Mower were used for harvesting. The results showed that the growth and soybean yield in monoculture system was better than the polyculture. Yield of Anjasmoro in monoculture was 15.35 ku per ha, whereas the polyculture was 4.72 ku per ha. Meanwhile, the productivity of Dena 1 was 14.80 ku per ha and 7.38 ku per ha in polyculture system. The polyculture had a higher value of the land equivalent ratio than monoculture of rubber trees. Economically, the two planting systems that were examined also deserve to be done by farmers, where the value R/C > 1

scholarly journals Pertumbuhan dan Produktivitas Lahan Tumpang Sari Tanaman Pinang (Areca catechu L.) dan Kopi (Coffea sp.)

2018 ◽  
Vol 3 (2) ◽  
pp. 61
Author(s):  
Nasamsir Nasamsir ◽  
Harianto Harianto
Keyword(s):  
Survey Method ◽  
Land Productivity ◽  
Stem Height ◽  
Land Equivalent Ratio ◽  
Equivalent Ratio ◽  
Effective Combination ◽  
Areca Catechu ◽  
Coffee Plants ◽  
Planting Distance ◽  
Descriptive Method

ABSTRAKTumpang sari tanaman pinang dengan tanaman kopi merupakan sebuah kombinasi efektif untuk pemanfaatan lahan. Penanaman kopi dapat dilakukan di antara barisan pinang, sehingga menghasilkan pertumbuhan tanaman dan produktivitas lahan yang optimal. Penelitian dilakukan di Desa Parit Tomo, Kecamatan Betara Kabupaten Tanjung Jabung Barat, dengan kondisi lahan gambut, dilaksanakan pada bulan April sampai Mei 2018. Penelitian ini bertujuan untuk menentukan nilai nisbah kesetaraan lahan (NKL) pada tanaman tumpang sari pinang dengan kopi serta menentukan model tanam tumpang sari pinang dengan kopi. Penelitian ini menggunakan metode survey pada lahan-lahan petani yang ditanami pinang dan kopi monokultur dan pinang ditumpangsarikan dengan kopi. Lokasi penelitian dipilih secara sengaja karena pada lokasi-lokasi tersebut terdapat budidaya tumpang sari pinang dengan kopi. Peubah yang diamati yaitu; jarak tanam (m), tinggi batang (m), lingkar batang (cm), ketebalan daun (mm), warna daun, intensitas cahaya (fc), suhu (0C), dan produktivitas lahan (ton ha-1). Untuk menjawab hipotesis yang diajukan, data yang diperoleh di lapangan dilakukan analisis statistika dengan metode deskriptif dalam bentuk tabulasi dan analisis inferensi dengan uji Z berpasangan dengan taraf ? 0,05%. Hasil penelitian menunjukkan, nilai nisbah kesetaraan lahan (NKL) > 1 (1,84), menggambarkan bahwa sistem tumpang sari pinang dan kopi lebih menguntungkan dibandingkan sistem tunggal dan model pola tanam tumpang sari yang baik menurut penulis adalah model 2 .Kata kunci :, tumpang sari, jarak tanam, nisbah kesetaraan lahan ABSTRACTIntercropping areca plants with coffee plants is an effective combination for land use. Coffee planting can be done between rows of areca plants, resulting in optimal plants growth and productivity of the land. The research will be conducted in Parit Tomo, Betara, Tanjung Jabung Barat, with the condition of peatland. This research will be conducted from April to Mei 2018. This study aims to determine the value of land equivalent ratio (LER) in the intercropping of areca plants with coffee plants and determine the model of cultivation intercropping of areca plants with coffee plants. This research used survey method on farmers' land planted monoculture and intercropping with areca plants and coffee plant. The location of this study was chosen intentionally because at these locations there is a cultivation of intercropping with areca plants and coffee plants. The observed variables are; planting distance (m), stem height (m), stem circumference (cm), leaf thickness (mm), leaf color, light intencity (fc), temperature (0C), and land productivity (ton ha-1). To answer the proposed hypothesis, the data obtained in the field is done statistical analysis with descriptive method in the form of tabulation and inference analysis with paired sample Z-test ? 0,05%. The results showed that land equivalent ratio (LER) was > 1 (2,39), illustrating that the areca plants with coffee plants intercropping system was more profitable than a monocropping system and intercropping model which was good according to the authors was model 2.Keywords : intercropping, planting distance, land equivalent ratio

scholarly journals POLIKULTUR TANAMAN KELAPA SAWIT (Elaeis quineensis Jacq.) DENGAN TANAMAN JELUTUNG (Dyera polyphylla)

2019 ◽  
Vol 4 (2) ◽  
pp. 52
Author(s):  
Nasamsir Nasamsir ◽  
Usman Usman
Keyword(s):  
Oil Palm ◽  
Optimal Growth ◽  
Survey Method ◽  
Land Productivity ◽  
Stem Height ◽  
Leaf Color ◽  
Land Equivalent Ratio ◽  
Equivalent Ratio ◽  
Planting Distance ◽  
Descriptive Method

Oil palm planting can be done between rows of jelutung plants, resulting in optimal growth and productivity of the land. The research will be conducted in Betara and Bram Itam Kanan , Tanjung Jabung Barat, with the condition of peatland will be conducted from Mei to Juny 2019. This study aims to determine the value of land equivalent ratio (LER) in the intercropping of oil palm with jelutung plants. This research used survey method on farmers' land planted monoculture and intercropping with oil palm and jelutung plant. The location of this study was chosen intentionally because at these locations there is a cultivation of intercropping with oil palm and jelutung plants. The observed variables are; planting distance (m), stem height (m), stem circumference (cm), leaf color, age of production (years), productivity of the oil palm and jelutung plants in intercropping (ton), and land productivity. To answer the proposed hypothesis, the data obtained in the field is done statistical analysis with Z test and descriptive method in the form of tabulation. The results showed that the production of oil palm and Jelutung monoculture system cropping were more than polyculture system cropping, but based on the calculation of the value of land equivalent ratio (LER), that value was > 1 (1.4).

scholarly journals Intercropping Twice of Corn with Cassava to Supply the Feed of Biomass in Eastern Mount Kawi of Malang Indonesia

2019 ◽  
Vol 42 (337) ◽  
pp. 26-31
Author(s):  
Yudi Widodo ◽  
Sri Wahyuningsih ◽  
Made Jana Mejaya ◽  
Yuliantoro Baliadi
Keyword(s):  
Dairy Cattle ◽  
Dry Season ◽  
Cattle Manure ◽  
Land Equivalent Ratio ◽  
Fresh Biomass ◽  
Equivalent Ratio ◽  
Sole Cropping ◽  
Planting Distance

Abstract Three treatments were tested with four replications at RCBD, namely cassava monoculture, corn twice under cassava intercropping, and corn with corn monoculture where the second corn was planted 5 days after harvested. Planting distance of cassava in monoculture was 100x100 cm, and in intercropping was 200x50 cm, by which corn was planted in 50x30 cm, 1 seed per hole. All plots received dairy cattle manure 5 t ha-1. Fertilizer applied for cassava was Urea 100 kg ha−1, Ponska 200 kg ha−1 and KCl 100 kg ha−1 split into two applications two weeks after cassava planting, then when first of corn was harvested. Corn fertilization was Ponska 150 kg ha−1 + Urea 100 kg ha−1 every 3 months and split into two applications: 1 week and 4 weeks after corn was planted. Cassava and twice corn fertilization was Urea 300 kg ha−1 + Phonska 400 kg ha−1 + KCl 100 kg ha−1. Results showed that cassava monoculture can be improved by inserting of twice corn in between rows. Under sole cropping cassava, the B/C ratio was the highest 1.61, however with incorporating twice of corn the B/C ratio was 1.58. Intercropping cassava and twice of corn resulted in the Land Equivalent Ratio 2.146. By intercropping cassava with corn twice at the end of dry season, there was an opportunity to find corn biomass for dairy cattle. Under intercropping, cassava was able to produce 21.5 t ha−1 of fresh roots, while first and second of corn produced fresh biomass of 34 t ha−1 and 28 t ha−1 respectively.

scholarly journals Suitability of Maize-legume intercrops with optimum row ratio in mid hills of eastern Himalaya, India

2015 ◽  
Vol 12 (2) ◽  
pp. 52-62 ◽  
Author(s):  
VK Choudhary
Keyword(s):  
Production Efficiency ◽  
Zea Mays L ◽  
Eastern Himalaya ◽  
Arunachal Pradesh ◽  
Phaseolus Vulgaris L ◽  
Land Equivalent Ratio ◽  
Equivalent Ratio ◽  
Planting Geometry ◽  
Legume Crops ◽  
Stover Yield

Maize (Zea mays L.) being a widely space crop were tried with different combinations of legumes cowpea (Vigna unguiculata L. Walp), frenchbean (Phaseolus vulgaris L.) and blackgram (Vigna mungo L.) as intercrops at different planting geometry to find out their suitability during 2009, 2010 and 2011 at eastern Himalayan, Arunachal Pradesh, India. Three experiments were carried out in sequence to identify suitable planting geometry to accommodate intercrops, screening best legume crops and subsequently best performed row ratio of maize and legume crops were intercropped in third experiment with 1:1, 1:2 and 1:5 row proportions. Sole maize gave the maximum grain yield with 4571.1 kg ha-1, whereas, stover yield was highest with maize-cowpea intercrop at 1:2 row ratios (8013.4 kg ha-1) and 57.1 kg ha-1 day-1 production efficiency followed by frenchbean and least with blackgram. Competition indices like land equivalent ratio (LER) was highest with 1:2 row ratio of maize-frenchbean (1.66), land equivalent coefficient (0.67). But, highest area time equivalent ratio (ATER) noticed with 1:2 row ratio of maizeblackgram (1.47). Relative crowding coefficient (K) and competition ratio were noticed higher with 1:2 row ratio of maize-cowpea, whereas, cowpea combinations has better crowding coefficient and blackgram combinations registered better competitiveness. Monetary advantage index (MAI) was 6433.2 with 1:2 row ratio of maize-blackgram followed by maize-cowpea and lowest with maize-frenchbean with the trend of 1:2>1:5>1:1 row ratios. DOI: http://dx.doi.org/10.3329/sja.v12i2.21916 SAARC J. Agri., 12(2): 52-62 (2014)

scholarly journals The Land Equivalent Ratio and Its Mutualistic Implications: Computational Approach

2014 ◽  
Vol 10 (4) ◽  
pp. 82-85
Author(s):  
E.N. Ekaka-A ◽  
◽  
N.E.S Lale ◽  
C.C Wokocha
Keyword(s):  
Computational Approach ◽  
Land Equivalent Ratio ◽  
Equivalent Ratio

scholarly journals Studies on Yield, Land Equivalent Ratio and Crop Performance Rate in Maize-Mungbean Intercropping

10.5109/24355 ◽  
2000 ◽  
Vol 45 (1) ◽  
pp. 39-48
Author(s):  
Faruque Ahmed ◽  
Osamu Hirota ◽  
You Yamada ◽  
Tomokazu Haraguchi ◽  
Masaru Matsumoto ◽  
...  
Keyword(s):  
Land Equivalent Ratio ◽  
Equivalent Ratio ◽  
Crop Performance ◽  
Performance Rate

Green Fodder Yield and Land Equivalent Ratio of Sorghum-Legume Association

1999 ◽  
Vol 3 (1) ◽  
pp. 175-176
Author(s):  
Iqtidar Hussain ◽  
Shakeel Ahmad Jatoi . ◽  
Obaidullah Sayal . ◽  
Muhammad Safdar Balo .
Keyword(s):  
Land Equivalent Ratio ◽  
Equivalent Ratio ◽  
Green Fodder ◽  
Fodder Yield

Trade-Off between Energy Wood and Grain Production in Temperate Alley-Cropping Systems: An Empirical and Simulation-Based Derivation of Land Equivalent Ratio

Agriculture ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 147 ◽  
Author(s):  
Diana-Maria Seserman ◽  
Dirk Freese ◽  
Anita Swieter ◽  
Maren Langhof ◽  
Maik Veste
Keyword(s):  
Land Use ◽  
Alley Cropping ◽  
Cropping Systems ◽  
Energy Yield ◽  
Land Area ◽  
Land Equivalent Ratio ◽  
Equivalent Ratio ◽  
Land Use Efficiency ◽  
Gross Energy ◽  
Use Efficiency

The alley-cropping systems (ACSs), which integrate parallel tree strips at varying distances on an agricultural field can result, complementarity of resource use, in an increased land-use efficiency. Practitioners’ concerns have been directed towards the productivity of such systems given a reduced area covered by agricultural crops. The land equivalent ratio (LER) serves as a valuable productivity indicator of yield performance and land-use efficiency in ACSs, as it compares the yields achieved in monocultures to those from ACSs. Consequently, the objective of this combined experimental and simulation study was to assess the tree- and crop-yields and to derive the LER and gross energy yield for two temperate ACSs in Germany under different design scenarios, i.e., tree arrangements (lee- or wind-ward) and ratios of tree area to crop area. Both LER and gross energy yields resulted in a convex curve where the maximum values were achieved when either the tree or crop component was dominant (>75% of the land area) and minimum when these components shared similar proportions of land area. The implications of several design scenarios have been discussed in order to improve the decision-making, optimization, and adaptation of the design of ACSs with respect to site-specific characteristics.

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