scholarly journals Agro-biological and economic efficiency in a beetroot (Beta vulgaris L.) production system fertilized with hairy woodrose (Merremia aegyptia (L.) Urb.) as green manure

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 395-402
Author(s):  
Italo Nunes Silva ◽  
Francisco Bezerra Neto ◽  
Aurélio Paes Barros Júnior ◽  
Jailma Suerda Silva de Lima ◽  
Aridênia Peixoto Chaves ◽  
...  
Keyword(s):  
Beta Vulgaris ◽  
Economic Efficiency ◽  
Production System ◽  
Green Manure ◽  
Arid Environment ◽  
Dry Mass ◽  
Biological Efficiency ◽  
Net Income ◽  
Caatinga Biome ◽  
Semi Arid

Beetroot (Beta vulgaris L.) is a tuberous vegetable that is under experimentation in the vegetable production system in Rio Grande do Norte state (Brazil). It is quite demanding, in nutritional terms. One of the alternatives to meet this need is green manuring using spontaneous species of the Caatinga biome. The aim of the present work was to optimize the agro-biological performance and economic profitability of the beetroot 'Early Wonder', fertilized with different doses of hairy woodrose (Merremia aegyptia (L.) Urb.) in this semi-arid environment. Hairy woodrose is a spontaneous species of the Caatinga biome that is widely distributed, being found in forests, fences, forest clearings and fields, growing in soils of different textures, producing biomass with a high content of macronutrients. This material was collected from spontaneous vegetation, native to the region, and used as green manure.The experimental design was a randomized complete block, with four treatments and five replicates. The treatments consisted of four amounts of hairy woodrose biomass incorporated into the soil (10, 25, 40 and 55 t ha-1 of dry matter). The following agronomic characteristics were evaluated in each beetroot treatment: plant height, fresh mass of shoots, number of leaves per plant, dry mass of shoots and dry mass of roots, total and commercial root productivity, and root productivity classified into scrap and extra roots, extra A roots, extra AA and great roots. Apart from these characteristics, the following economic indicators were also determined for each treatment: gross income, net income, rate of return and profit margin. The maximum agro-biological efficiency of beet root productivity (22.68 t ha-1) was obtained from 44.92 t ha-1 of hairy woodrose biomass added to the soil. The maximum economic efficiency of the yield of beet roots was achieved as a net income of AU$2,491.00 (R$6,406.36) ha-1, provided by the production of 22.04 t ha-1 of commercial roots, using 37.03 t ha-1 of hairy woodrose biomass incorporated into the soil. The use of hairy woodrose as green manure presents agro-economic feasibility in beet cultivation in this semi-arid environment.

scholarly journals TECHNICAL-ECONOMIC EFFICIENCY OF THE YIELD OF GREEN GRAINS OF COWPEA FERTILIZED WITH ROOSTERTREE

2018 ◽  
Vol 31 (2) ◽  
pp. 504-510 ◽  
Author(s):  
FLAVIANA DE ANDRADE VIEIRA ◽  
FRANCISCO BEZERRA NETO ◽  
MAIELE LEANDRO DA SILVA ◽  
JAILMA SUERDA SILVA DE LIMA ◽  
AURÉLIO PAES BARROS JÚNIOR ◽  
...  
Keyword(s):  
Economic Efficiency ◽  
Block Design ◽  
Maximum Yield ◽  
Rio Grande ◽  
Dry Mass ◽  
Economic Feasibility ◽  
Calotropis Procera ◽  
Net Income ◽  
Agronomic Efficiency ◽  
Semi Arid

ABSTRACT This study aimed to determine the doses of maximum agronomic and economic efficiency as a function of different amounts of roostertree [Calotropis procera (Ait.) R.Br.] biomass added to the soil, that results in the maximum yield of green grains of cowpea in the semi-arid of Rio Grande do Norte state, Brazil. The experiment was conducted at the “Rafael Fernandes” Experimental Farm of the Universidade Federal Rural do Semi-Árido (UFERSA), Alagoinha, RN, from August to November 2013. In the experiment was used a randomized completely block design with 5 replicates. The treatments consisted of 20, 35, 50, and 65 t ha-1 (on a dry matter basis) of roostertree biomass added to the soil. The evaluated characteristics were: number of green pods per m2, productivity and dry mass of green pods, number of green grains per pod, weight of 100 green grains, and dry mass of green grains. The following economic indicators were determined: gross and net incomes, production operational costs, rate of return, and profit margin. The maximum agronomic efficiency of the yield of cowpea green grain was reached at the yield of 3.05 t ha-1, using 61.0 t ha-1 of roostertree biomass in the soil. The maximum economic efficiency yielded a net income of R$ 8,701.42, at the production of 3.02 t ha-1 green grains with 53.57 t ha-1 of roostertree biomass added to the soil. The use of roostertree as a green manure presents technical-economic feasibility in cowpea cultivation for green grains in the semi-arid conditions of Rio Grande do Norte.

scholarly journals The Right-Sized Cow for Emerging and Commercial Beef Farmers in Semi-Arid South Africa: Connecting Biological and Economic Efficiency

2021 ◽  
Vol 11 (1) ◽  
pp. 79-104
Author(s):  
Venter T.M ◽  
Antwi M.A ◽  
Oduniyi O.S
Keyword(s):  
South Africa ◽  
Economic Efficiency ◽  
Feed Intake ◽  
Growth Rates ◽  
Production System ◽  
Biological Efficiency ◽  
Resource Base ◽  
The Right ◽  
Stock Flow ◽  
Semi Arid

The study investigates the right size of cow in terms of both biological and economic efficiency under a typical production system in semi-arid South Africa. Cow size influences biological efficiency of individual animals, which influences herd composition and stock flow on a predetermined resource base. This in turn influences the economic efficiency of the herd. Individual cows were classified as either small, medium, or large and their individual biological efficiency determined. When similar reproduction and growth rates were assumed, large cows were the most biologically efficient, followed by medium and small cows. Income from the herd of small cattle was the lowest, as fewer kilograms of beef were available to sell. Allocated costs for the herd of small cattle were the highest, due to a large number of expenses being charged per head of cattle. Subsequently, when economic efficiency was calculated, the herd of large cattle was more profitable than its smaller counterparts. The herd of large and medium cattle would become less profitable than the herd of small cattle at lower reproduction rates, and these reproduction rates were calculated. Smaller cattle have a faster maturity rate than larger cattle. A faster maturity rate provides the opportunity for early breeding. The effect of limiting feed intake of small, medium, and large cattle was compared and yielded varying results. The study concluded that cattle size influences biological efficiency, biological efficiency influences economic efficiency however there are many more variables that influence biological and economic efficiency other than size, such as reproduction rates.

scholarly journals EFFECT OF GREEN MANURING WITH MERREMIA AEGYPTIA ON AGRO-ECONOMIC EFFICIENCY OF RADISH PRODUCTION

2020 ◽  
Vol 33 (4) ◽  
pp. 964-973
Author(s):  
RENATO LEANDRO COSTA NUNES ◽  
FRANCISCO BEZERRA NETO ◽  
JAILMA SUERDA SILVA DE LIMA ◽  
ARIDÊNIA PEIXOTO CHAVES ◽  
JOSIMAR NOGUEORA DA SILVA ◽  
...  
Keyword(s):  
Economic Efficiency ◽  
Green Manure ◽  
Dry Mass ◽  
Root Diameter ◽  
Northeastern Brazil ◽  
Net Income ◽  
Green Manuring ◽  
New Crops ◽  
Family Farmers ◽  
Semi Arid Region

ABSTRACT The introduction of new crops in northeastern Brazil, associated with the use of the green manure, can become an alternative for family farmers. Thus, the objective of this work was to determine the effect of green manuring with M. aegyptia L. on the agro-economic efficiency of radish production. The experimental design was a randomised complete block with four treatments and five replicates; the treatments were composed of four doses of M. aegyptia (20, 35, 50 and 65 t ha-1 on a dry basis) incorporated into the soil in three cropping periods. In radish plants, we evaluated plant height, fresh and dry mass of shoots, total and commercial productivity of roots, productivity of scrap roots, dry mass of roots and root diameter. The economic indicators gross income, net income, rate of return and profit margin were used to evaluate the agro-economic efficiency of the system. The maximum agronomic efficiency was reached with a commercial root productivity of 7.86 t ha-1 and the addition of 49.29 t ha-1 of green manure. The maximum economic efficiency was obtained with a net income of 11,955.46 R$ ha-1 when a green manure dose of 46.00 t ha-1 was added. The use of M. aegyptia as green manure is economically viable in the production of radish in the semi-arid region of Northeast Brazil.

scholarly journals Agro-economic efficiency dynamics in vegetable cowpea and radish cultivar combinations in strip-intercropping systems

2021 ◽  
Vol 42 (3Supl1) ◽  
pp. 1453-1472
Author(s):  
Iara Beatriz Silva Azevedo ◽  
◽  
Francisco Bezerra Neto ◽  
Jailma Suerda Silva de Lima ◽  
Renato Leandro Costa Nunes ◽  
...  
Keyword(s):  
Economic Efficiency ◽  
Arid Environment ◽  
Net Income ◽  
Land Equivalent Ratio ◽  
Cowpea Cultivars ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
Actual Yield ◽  
Strip Intercropping ◽  
Semi Arid

This work aimed to evaluate the dynamics of agro-economic efficiency in combinations of vegetable cowpea and radish cultivars in strip-intercropping systems through agronomic, economic and competition indices tested by the Hsu test in a semi-arid environment. The experimental design was a completely randomised block with eight treatments and four replications. The treatments consisted of combinations of four cowpea cultivars, BRS Tumucumaque, BRS Cauamé, BRS Guariba, and BRS Itaim, with two radish cultivars, Crimson Gigante and Zapp. In each block, individual plots of these cultivars in single cultivation were planted as additional treatments to obtain the system indices. The indices of agronomic and economic efficiency and of competition evaluated were land equivalent ratio (LER), actual yield loss (AYL), land use efficiency (LUE%), score of the canonical variable (Z), gross income (GI), net income (NI), rate of return (RR), corrected monetary advantage (CMA), competitive ratio (CR) and the aggressivity of radish over cowpea (Ar) and cowpea over radish (Avc). The cowpea cultivar BRS Tumucumaque, when combined with the radish cultivar Zapp, provided the highest agro-economic efficiency of the intercropped system in a semi-arid environment. The complementarity and sustainability of the intercropping systems of cowpea and radish were observed in the results of the Hsu test applied to the indices of agro-economic efficiency and of competition. Radish was the dominant crop.

Intercropping forage cactus and sorghum in a semi-arid environment improves biological efficiency and competitive ability through interspecific complementarity

2021 ◽  
Vol 188 ◽  
pp. 104464 ◽  
Author(s):  
Alexandre Maniçoba da Rosa Ferraz Jardim ◽  
Thieres George Freire da Silva ◽  
Luciana Sandra Bastos de Souza ◽  
George do Nascimento Araújo Júnior ◽  
Hygor Kristoph Muniz Nunes Alves ◽  
...  
Keyword(s):  
Competitive Ability ◽  
Arid Environment ◽  
Biological Efficiency ◽  
Semi Arid

scholarly journals Evaluation of biological and economic efficiency of the All Heifer, No Cow beef production system using a system dynamics model based on 6 yr of demonstration herd data

2020 ◽  
Author(s):  
M A Harrison ◽  
J J Sheehan ◽  
G E Seidel Jr ◽  
D F Mooney ◽  
R D Rhoades ◽  
...  
Keyword(s):  
Economic Efficiency ◽  
Production System ◽  
Management Strategies ◽  
Biological Efficiency ◽  
Variable Cost ◽  
Cost Ratio ◽  
Beef Production ◽  
Benefit Cost Ratio ◽  
Female Sex ◽  
Model Animal

Abstract Alternative management strategies with no cows and all heifers may improve biological and economic efficiency of beef production. The All Heifer, No Cow (AHNC) beef production system involves insemination of nulliparous heifers with female sex selected semen to produce primarily female calves that are early-weaned at 3 mo of age. Dams are finished on a high concentrate diet and harvested before 30 mo of age. The objectives of this research were to: 1) build a dynamic model of an AHNC beef production system to quantify system biological and economic efficiency; 2) compare effects of utilizing female sex-selected semen vs. conventional semen on biological and economic efficiency; 3) evaluate what-if scenarios to determine the effects on biological and economic efficiency of changing variables ±5 ,10, 15, and 20% from initial observed values; and 4) evaluate the effects on biological and economic efficiency of changing variables ±10% from initial observed values. A model was built over a 21-yr horizon using Stella Architect©. Biological parameter values in the model were based on 6 years of data collected from the management of an AHNC demonstration herd. In the model animal total digestible nutrients (TDN) intake, hot carcass weight (HCW), and age at harvest were randomized. Feed, animal and carcass prices included in the model were based on 10 yr of historical U.S. price data. Key response variables were biological and economic efficiency (mean ± SD). Biological efficiency was defined as the ratio of output (kg of HCW produced) to input (lifetime kg of feed TDN consumed), and economic efficiency was measured using a benefit-cost ratio (BCR) and unit variable cost (UVC). Over 40 simulation runs, predicted mean biological efficiency was 0.0714 ± 0.0008. Economic efficiency was 0.95 ± 0.02 and $445.41 ± 0.06 for BCR and UVC, respectively. Biological and economic efficiency was improved in the conventional semen scenario; biological efficiency was 0.0738 ± 0.0008, and BCR and UVC were 0.99 ± 0.04 and $407.24 ± 0.006, respectively. Under this parameterization and market conditions, the AHNC beef production system failed to achieve profitability under any scenario that was evaluated. However, this review did not account for the potential increased genetic benefit from a decreased generation interval and the reduction in feed energy in comparison to a conventional cow/calf system.

scholarly journals Eficiência econômica de cultivares de coentro consorciado com rabanete adubado com jitirana mais esterco bovino

2015 ◽  
Vol 10 (3) ◽  
pp. 23
Author(s):  
Bárbara Bruna Maniçoba Pereira ◽  
Paulo César Ferreira Linhares ◽  
Jéssyca Duarte de Oliveira ◽  
Brenna Rafaella Veríssimo dos Santos ◽  
Patrício Borges Maracajá
Keyword(s):  
Economic Efficiency ◽  
Economic Performance ◽  
Production System ◽  
Organic Production ◽  
Cattle Manure ◽  
Economic Indicators ◽  
Rate Of Return ◽  
Net Income ◽  
Short Cycle ◽  
Gross Income

<p>Dentre as hortaliças cultivadas em sistema consorciado nas áreas de produção familiar, encontra-se o coentro e o rabanete, espécies de ciclo curto (de 30 a 35 dias para o coentro) e (de 25 a 30 dias para o rabanete). Essas espécies são cultivadas na região de Mossoró/RN em sistema orgânico de produção onde se utiliza esterco bovino como adubo. Assim, um experimento foi conduzido na Fazenda Experimental Rafael Fernandes, Mossoró-RN, no período de agosto a outubro de 2014, com o objetivo de avaliar a eficiência econômica de cultivares de coentro consorciado com rabanete adubado com jitirana mais esterco bovino. O trabalho foi conduzido no delineamento de blocos completos casualizados em esquema fatorial 2 x 5, com três repetições. O primeiro fator foi constituído de duas cultivares de coentro (verdão e tabocas) consorciado com rabanete, cultivar Crimsom gigante e o segundo fator pelas doses de jitirana mais esterco bovino (0,0; 1,0; 2,0; 3,0 e 4,0 kg m-<sup>2</sup> de canteiro). Utilizou-se a proporção de 1:1, ou seja, uma parte de jitirana para uma parte de esterco bovino. O espaçamento utilizado para o rabanete foi de 0,10 x 0,10 m com uma planta por cova-1. Já no coentro, o espaçamento utilizado foi de 0,10 x 0,05 m com cinco plantas cova-1, correspondendo a 1000 plantas m-<sup>2</sup> de canteiro. As características avaliadas para os indicadores econômicos foram: renda bruta e renda líquida, taxa de retorno e índice de lucratividade. O melhor desempenho econômico do sistema foi obtido na dose de 4,0 kg m-<sup>2</sup> de canteiro, com renda bruta de R$ 19.825,00, renda líquida de R$ 16.519,00, taxa de retorno de R$ 6,00 e índice de lucratividade de 78,7%.</p><p align="center"><strong><em>Economic efficiency of intercropping coriander and radish cultivars fertilized with manure bovine jitirana</em></strong></p><pre><strong>Abstract: </strong>Among the vegetables grown in intercropping system in the areas of family production, is the cilantro and radish, short-cycle species (30-35 days to coriander) and (25-30 days for radish). These species are grown in the region of Mossoró / RN in organic production system which uses cattle manure as fertilizer. Thus, an experiment was conducted at the Experimental Farm Rafael Fernandes, Mossoro-RN, in the period from August to October 2014, aiming to assess the economic efficiency of intercropping coriander and radish cultivars fertilized with manure jitirana beef. The work was conducted in a randomized complete block in a factorial 2 x 5, with three replications. The first factor consisted of two coriander cultivars (verdão and tabocas) intercropped with radish, cultivate Crimsom giant and the second factor by more jitirana doses of cattle manure (0.0, 1.0, 2.0, 3.0 and 4.0 kg m-2 site). We used the ratio of 1: 1, or a part of jitirana for a part of manure. The spacing used for the radish was 0.10 x 0.10 m with a plant per hill-1. You coriander, the spacing used was 0.10 x 0.05 m with five plants pit-1, corresponding to 1000 m 2 plants site. The characteristics evaluated for the economic indicators were gross income and net income, rate of return and profitability index. The better economic performance of the system was obtained at a dose of 4.0 kg m-2 site, with gross income of R $ 19,825.00, net income of R $ 16,519.00, return fee of $ 6.00 and 78.7% profitability index.</pre>

scholarly journals Agro-economic performance of the association of beet with green cowpea in different amounts of hairy woodrose

2018 ◽  
Vol 22 (3) ◽  
pp. 194-199 ◽  
Author(s):  
Daciano M. de Sousa ◽  
Francisco Bezerra Neto ◽  
Jailma S. S. de Lima ◽  
Grace K. L. de Lima ◽  
Aridênia P. Chaves ◽  
...  
Keyword(s):  
Economic Performance ◽  
Green Manure ◽  
Arid Region ◽  
Block Design ◽  
Arid Conditions ◽  
Randomized Complete Block Design ◽  
Caatinga Biome ◽  
Semi Arid Region ◽  
Brazilian Northeast ◽  
Semi Arid

ABSTRACT Intercropping systems of beet and green cowpea are beginning to be implemented in the northeastern semi-arid region in Brazil. The great challenge is to know if there is agro-economic efficiency in these systems when fertilized with organic matter produced by spontaneous species of the Caatinga biome. Thus, the objective of this research was to evaluate the effect of green manuring using different amounts of hairy woodrose (Merremia aegyptia) in the association of beet with green cowpea under the semi-arid conditions. The experiment was carried out at the Rafael Fernandes Experimental Farm, rural area of Mossoró, RN, Brazil, in the period of September-December 2015, in a randomized complete block design with four treatments and five replicates. The treatments consisted of hairy woodrose amounts incorporated into the soil (10, 25, 40, 55 t ha-1 on a dry basis). The cultivars of beet and green cowpea planted were ‘Early Wonder’ and ‘BRS Itaim’, recommended for the semi-arid conditions of the Brazilian Northeast. The best agro-economic performance for intercropping system of beet and green cowpea was obtained with 55 t ha-1 of hairy woodrose incorporated in the soil. The use of the hairy woodrose species as green manure is agronomically viable in intercropped systems with beet and green cowpea.

scholarly journals Beetroot and radish production under different doses of green manures

2021 ◽  
Vol 10 (16) ◽  
pp. e66101623205
Author(s):  
Vitor Abel da Silva Lino ◽  
Francisco Bezerra Neto ◽  
Jailma Suerda Silva de Lima ◽  
Elizangela Cabral dos Santos ◽  
Renato Leandro da Costa Nunes ◽  
...  
Keyword(s):  
Experimental Design ◽  
Economic Efficiency ◽  
Production System ◽  
Calotropis Procera ◽  
Green Manures ◽  
Agronomic Efficiency ◽  
Green Manuring ◽  
Caatinga Biome ◽  
Cropping Seasons ◽  
Different Doses

Green manuring with spontaneous species from Caatinga biome has become an important strategy in production vegetables. One of the great challenges in tuberous vegetables production is to define an optimized quantity that provides a high productive yield with economic efficiency of production system. The objective of this study was to optimize agronomically and economically the production and its components of tuberous crops of beetroot and radish when manured with different amounts of green manures biomass, Merremia aegyptia and Calotropis procera from Caatinga biome, in two cropping seasons. The experimental design was a randomized complete block with five treatments and five replications. Treatments consisted of green manures amounts (16, 26, 36, 46, 56 t ha-1). The maximum agronomic efficiency of beetroot and radish was obtained with incorporation of 49.87 and 39.43 t ha-1 of M. aegyptia and C. procera, respectively, and the production maximum economic efficiency was reached when 36.14 and 36.48 t ha-1, respectively, of biomass of these green manures were added to the soil. The returns rate obtained in beetroot and radish cultivation using the manures optimized amounts were 1.42 and 1.32 reais obtained for each real invested in the production of these tuberous.

scholarly journals Taxonomical study on a sample of pulmonates from Santa Maria da Vitória, Bahia, Brazil, with description of a new genus and four new species (Mollusca: Orthalicidae and Megalobulimidae)

2012 ◽  
Vol 52 (36) ◽  
pp. 431-439 ◽  
Author(s):  
Luiz Ricardo L. Simone
Keyword(s):  
New Genus ◽  
Arid Environment ◽  
Middle Level ◽  
Interior Region ◽  
Caatinga Biome ◽  
Brazilian Northeast ◽  
Santa Maria ◽  
Taxonomical Study ◽  
Semi Arid ◽  
Shell Axis

A sample of Pulmonata collected in Santa Maria da Vitória, interior of Bahia, Brazil, in Caatinga semi-arid environment, is studied taxonomically. From the five species, four are revealed as new, including a new genus. The new taxa are the Bulimulidae (1) Kora corallina gen. et sp. n. characterized by the elongated shell with aperture somewhat dislocated from the shell axis, and an oblique tooth in middle level of inner lip; (2) Spixia coltrorum, mainly characterized by an uneven spire, delicate sculpture and peristome with 4 equidistant teeth; (3) Anostoma tessa, mainly characterized by a broad spire and well-developed anal canal; and the Megalobulimidae (4) Megalobulimus amandus, mainly characterized by pointed protoconch sculptured by dense quantity of axial cords. Rhinus suturalis is the only previously known species, but its geographic distribution is expanded southwards to Bahia state. A discussion with respect to necessity for improving the study on the malacofauna from the interior region of the Brazilian Northeast and the importance for preservation of the Caatinga biome is also provided.

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