(1989). 3, pp. The calculation of land equivalent ratio (LER) w. as made with comparing intercropping to the monoculture of soybean and corn with treatment potassium : 0 , 30 , 60, and 90 kg K. 2. /ha), net income (000 Rs. When the agro-system efficiency (AEI) is assessed based on land equivalent ratio, if the AEI (agro-system efficiency index) is higher than 1, the intercropped system is advantageous and leads to "over-yielding"; otherwise, there is no advantage and it leads to "under-yielding" (TEIXEIRA et al., 2005). Assessing the land equivalent ratio (LER) of maize (Zea mays L.) intercropped with Rhizobium inoculated soybean (Glycine max [L.] Merr.) The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture). Tarfa, C. Shinggu and R. Omolehin, 2003. Journal of Central European Agriculture 7, br. Land Equivalent Ratio (LER ) LER is used frequently as index of biological advantage, which places the component crops on a relative and directly comparable basis (Willey,1979). The effect of crop cultivar and crop row arrangement on land equivalent ratio between 2008 and 2010 cropping seasons is presented in Table 2. Land Equivalent Ratios (LER): The ratio of the area needed under sole cropping to the one under intercropping to give equal amounts of yield at the same management level. The total above-ground biomass (DM) and its land equivalent ratio (LER) were highest in the 1 : 1 combination ratio. The FAO defines land equivalent ratio (LER) as: the ratio of the area under sole cropping to the area under intercropping needed to give equal amounts of yield at the same management level. It is the sum of the fractions of the intercropped yields divided by the sole-crop yields. THE LAND EQUIVALENT RATIO CONCEPT Willey and Osiru (1972) pointed out the danger of comparing a combined inter-crop yield with a combined sole crop yield on the basis of the same sown pro-portions, because competition in intercropping usually results in a different proportion of final yields than from sole cropping. The total above-ground biomass (DM) and its land equivalent ratio (LER) were highest in the 1 : 1 combination ratio. SAMSORG -14 had higher (1.19) combined land equivalent ratio relative to SAMSORG -17 (1.12). The FAO defines land equivalent ratio (LER) as: the ratio of the area under sole cropping to the area under intercropping needed to give equal amounts of yield at the same management level. the pure stands. It is the sum of the fractions of the intercropped yields divided by the sole-crop yields. Abbreviation in category - Bae in slang. Land equivalent ratio The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture). In this case, the LER = 1.5. Estimation of land equivalent ratios. Miscellaneous » Unclassified. Land equivalent ratio (LER) LER defined as the ratio of area needed under solid cropping to one of intercropping at the same management level to produce an equivalent yield (Mead and Willey, 1980). the land equivalent ratio (LER) of intercropping cucumber and lettuce as a function of the cucumber population. View Land Equivalent Ratio Research Papers on Academia.edu for free. the Land Equivalent Ratio (LER). Create a garden that showcases a bed of flowers using the ratio 10 roses/2ferns. Solved Example on Equivalent Ratios Ques: A carnival game has 3 winners for every 7 losers.Find two ratios equal to the ratio of winners to losers. Considering that all of mixed treatments had LER more than 1 in this study, it seems that the mixed culture tons per hectare) with what is yielded on one hectare by another (hence the word « ratio » coined into the LER expression). The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture). The effect of intercropped soyabean cultivars showed that TGx 1448-2E (1.14) had Mead, R.; Willey, R.W. Please upvote if ⦠A more efficient use of resources in production systems can reduce costs and environmental impacts. Maximum maize seed yield (6.7 t [ha.sup.-1]) and LER (1.62) was recorded in 90 cm spaced double row strips, maize + soybean intercropping [101]. When compared to the same area of land that was managed in monoculture, intercrops produced 38% more gross energy (mean relative land output of 1.38) and 33% more gross incomes (mean relative land output of 1.33) on average, whilst using 23% less land (mean land equivalent ratio of 1.30). Maize Field Biomass Yield and Land Equivalent Ratio under the Influence of Different Management Practices and Location: Erick Sebetha: Abstract: Background and Objective: The production of maize field biomass and Stover is enhanced by inclusion of legume in cropping system. A low floor area ratio is generally a deterrent to construction. We evaluated the land equivalent ratio (LER) of intercropping cucumber and lettuce as a function of the cucumber population. Land equivalent ratio Originally proposed to help judge the relative performance of a component of a crop combination to sole stands of that species, the term Land Equivalent Ratio is derived from its indication of relative land requirements for intercrops versus monocultures (Mead and Willey, 1980). 16, No. 2011 Land Equivalent Ratio pepper cowpea okra watermelon 0 0.2 0.4 0.6 0.8 1 1.2 1.4 Ipw Spw Ipwo Ipwoc Ipwocr Intercropping Combination 2012 Land Equivalent Ratio ⦠It is often used as an indicator to determine the efficacy of intercropping (Brintha and Seran, 2009). Land equivalent ratio: Land equivalent ratio was influenced by various intercropping patterns (Table 2). Effects of maize and potato populations on tuber and grain yields, net income and land equivalent ratio in potato/maize intercropping. Data analysisData of maize -soybean yields and on land equivalent ratio were subjected to analysis of variance using SAS version 8. Lettuce and cucumber are two important vegetables cultivated in greenhouses. The efficiency of intercropping system can be evaluated by the land equivalent ratio (LER), defined as the total area required under sole cropping to produce the equivalent yields obtained under intercropping. Effective Land Equivalent Ratio (ELER): Mead and Willey (1980) showed that any required ratio could be achieved by growing the intercrop of the land area and one of sole crops the remainder. managing AF plots, the Land Equivalent Ratio (LER). Each zoning district has an FAR which, when multiplied by the lot area of the zoning lot, produces the maximum amount of ⦠Agric., 66: 329-333. The LER is the sum of the fractions of the yields of the intercrops relative to their sole-crop yields. BYJUâS online equivalent ratio calculator tool makes the calculations faster and easier where it displays the value in a fraction of seconds. The LER is the sum of the fractions of the yields of the intercrops relative to their sole-crop yields.
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