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 AGRO-ECONOMIC EFFICIENCY OF THE INTERCROPPING OF CARROT X COWPEA-VEGETABLE UNDER DIFFERENT SPATIAL ARRANGEMENTS AND POPULATION DENSITIES

2017 ◽  
Vol 30 (4) ◽  
pp. 847-854
Author(s):  
GIORGIO MENDES RIBEIRO ◽  
FRANCISCO BEZERRA NETO ◽  
JAILMA SUERDA SILVA DE LIMA ◽  
MAIELE LEANDRO DA SILVA ◽  
AURÉLIO PAES BARROS JÚNIOR ◽  
...  
Keyword(s):  
Economic Efficiency ◽  
Efficiency Index ◽  
Productive Efficiency ◽  
Calotropis Procera ◽  
Net Income ◽  
Population Densities ◽  
Agronomic Efficiency ◽  
Land Equivalent Ratio ◽  
Sole Crop ◽  
Brazilian Northeast

ABSTRACT The objective of this study was to evaluate the agro-economic efficiency of the intercropping of carrot with cowpea-vegetable under different spatial arrangements and population densities in the semi-arid conditions of the Brazilian Northeast. The study was conducted at the "Rafael Fernandes" Experimental Farm of the Universidade Federal Rural do Semi-Árido (UFERSA) during the period July 2013 to February 2014. The experimental design was of randomized complete blocks with four replications and treatments arranged in a 3 × 4 factorial scheme, where the first factor consisted of spatial arrangements (2:2; 3:3 and 4:4) and the second factor by population densities of cowpea-vegetables (100, 80, 60 and 40% of the recommended population in sole crop [RPSC]). All treatments were fertilized with roostertree (Calotropis procera [Ait.] R.Br.), which is a spontaneous species of the Caatinga biome. The indices of agronomic efficiency of the intercropping systems assessed were: land equivalent ratio, productive efficiency index and score of the canonical variable. The following economic indicators were also evaluated: gross income, net income, rate of return and profit margin. The agro-economic efficiency of the intercropping system of carrot with cowpea- vegetable was influenced by the spatial arrangements, with the 2:2 arrangements standing out from the others. The greatest agro-economic efficiency of the intercropping of carrot with cowpea-vegetable was obtained in the population density of 100% of the RPSC when the value of the productive efficiency index was 0.75.

scholarly journals PRODUCTIVE VIABILITY AND PROFITABILITY OF CARROT-COWPEA INTERCROPPING USING DIFFERENT AMOUNTS OF Calotropis procera

2019 ◽  
Vol 32 (1) ◽  
pp. 62-71
Author(s):  
Francisco Bezerra Neto ◽  
Maiele Leandro da Silva ◽  
Jailma Suerda Silva de Lima ◽  
Aurélio Paes Barros Júnior ◽  
Italo Nunes Silva ◽  
...  
Keyword(s):  
Calotropis Procera ◽  
Net Income ◽  
Productive Performance ◽  
Agronomic Efficiency ◽  
Land Equivalent Ratio ◽  
Net Profit ◽  
Alternative Farming ◽  
Gross Income ◽  
Semi Arid Region ◽  
Semi Arid

ABSTRACT Intercropping system and the use of green manure with spontaneous species has been an alternative farming method applied to the productive sector of vegetables in the northeastern semi-arid region. The objective of this work was to determine which amount of Calotropis procera must be incorporated into the soil to provide the highest productive performance of the component crops and increase the profitability of the carrot and cowpea intercropping. The experimental design used was randomized complete blocks with five replicates. The treatments consisted of four amounts of C. procera incorporated into the soil: 10, 25, 40 and 55 t ha-1 on a dry basis. The characteristics evaluated in this intercropping system were: commercial productivity of carrot roots, yield of cowpea green grains, land equivalent ratios for component crops and for the intercropped system, score of the canonical variable of the association, and the economic indicators of gross income, net income, rate of return, and net profit margin. The maximum agronomic efficiency of the carrot x cowpea intercropping was reached at the land equivalent ratio of 1.12, using 43.39 t ha-1 of C. procera biomass incorporated in the soil, while the maximum economic efficiency of the carrot and cowpea crops association was obtained at the net income of R$ 17,856.43 ha-1, in the amount of 40.60 t ha-1 of C. procera biomass added to the soil.

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 AGRONOMIC EFFICIENCY OF THE INTERCROPPING OF ARUGULA WITH CARROT UNDER DIFFERENT POPULATION COMBINATIONS

2016 ◽  
Vol 29 (1) ◽  
pp. 76-84 ◽  
Author(s):  
THAÍZA MABELLE DE VASCONCELOS BATISTA ◽  
FRANCISCO BEZERRA NETO ◽  
ÍTALO NUNES SILVA ◽  
MAIELE LEANDRO DA SILVA ◽  
ELIANE QUEIROGA DE OLIVEIRA ◽  
...  
Keyword(s):  
Experimental Design ◽  
Maximum Yield ◽  
Population Densities ◽  
Agronomic Efficiency ◽  
Green Mass ◽  
Sole Crop ◽  
Arid Conditions ◽  
Caatinga Biome ◽  
Brazilian Northeast ◽  
Semi Arid

ABSTRACT: The objective of this study was to evaluate the agronomic efficiency of intercropping combinations of carrot and arugula at different population densities in bicropping in the semi-arid conditions of the Brazilian Northeast. The study was conducted at the "Rafael Fernandes" Experimental Farm of the Universidade Federal Rural do Semi-Árido (UFERSA) during the period September 2011 to February 2012. The experimental design was of randomized complete blocks with treatments arranged in a 4 x 4 factorial scheme with four replications. The combinations were four population densities of carrot (40, 60, 80 and 100% of the recommended population in sole crop - RPSC) with four population densities of arugula (40, 60, 80 and 100% of the RPSC). The recommended population densities for sole crops of carrot and arugula are 500,000 and 1,000,000 plants per hectare, respectively. All treatments were fertilized with hairy woodrose (Merremia aegyptia L.), a spontaneous species of the Caatinga biome. The highest agronomic efficiency of carrot intercropped with arugula in bicropping was achieved in the combination of 40% of RPSC for the carrot and 100% of RPSC for the arugula. The commercial maximum yield (33.74 t ha-1) of carrot roots and the maximum yields of arugula green mass (8.06 and 2.67 t ha-1) in both cultivations were also obtained in the combination of population densities of 40% of RPSC for carrot and 100% of RPSC for arugula.

scholarly journals Productivity of potato seed submitted to different doses of potassium in hydroponic system

2019 ◽  
pp. 555
Author(s):  
Camila B.A. Tufik
Keyword(s):  
Seed Potato ◽  
Block Design ◽  
Maximum Yield ◽  
Dry Mass ◽  
Potato Seed ◽  
Design Data ◽  
Fresh Matter ◽  
Hydroponic System ◽  
Randomized Block Design ◽  
Different Doses

The potato is one of the most economically important crops in Brazil, and among the items that most cost the production is seed potatoes. The deficiency of one nutrient can interfere with the absorption and accumulation of the others in plants. The aim of this work was to quantify the optimal potassium (K) dose for minituber basic seed potato yield in hydroponic system. The experiment was installed in a greenhouse with the Agata cultivar minitubers. The treatments consisted of five doses of K (0.0; 2.5; 5.0; 7.5 e 10.0 mmol L-1) with four repetitions. The experimental design was a randomized block design. Data were submitted to analysis of variance and regression. The number of tubers, fresh mass, classification and dry mass were measured. The content of K and content other nutrients in the seed potato tubers were also evaluated. In the hydroponic systems, the maximum yield per plant was 48.41 tubers obtained with 6.15 mmol L-1 of K and maximum mass of fresh matter was 646.6 g.

CRESCIMENTO E PRODUÇÃO DA PRIMEIRA REBROTA DE CULTIVARES DE SORGO SOB DIFERENTES LÂMINAS DE IRRIGAÇÃO

2017 ◽  
Vol 16 (3) ◽  
pp. 449
Author(s):  
JOÃO PAULO NUNES COSTA ◽  
JOSÉ FRANCISMAR MEDEIROS ◽  
RAFAELA MENDES DE ANDRADE NUNES ◽  
EDMILSON GOMES CAVALCANTE JÚNIOR ◽  
JOSÉ FLAVIANO BARBOSA LIRA
Keyword(s):  
Sorghum Bicolor ◽  
Arid Region ◽  
Block Design ◽  
Dry Mass ◽  
Climatic Data ◽  
Forage Sorghum ◽  
Tukey Test ◽  
Randomized Complete Block Design ◽  
Semi Arid Region ◽  
Semi Arid

RESUMO - Avaliou-se comportamento da rebrota de cultivares do sorgo sacarino e forrageiro no semiárido potiguar sob diferentes lâminas de irrigação. O ensaio foi realizado em março de 2015, nas condições de campo, em um argissolo no município de Upanema-RN, região Nordeste do Brasil. O experimento foi conduzido com delineamento experimental em blocos casualizados completos, em esquema de parcelas subdivididas 4 x (5 x 2), com quatro repetições, sendo quatro lâminas de irrigação (50, 75, 100 e 125% da ETc), e cinco cultivares (duas cultivares sacarinas, BRS 506 e BRS 511, e três forrageiras IPA 467-4-2, IPA SF-15 e BRS Ponta Negra) combinadas com duas densidade de plantio nas subparcelas. As variáveis avaliadas foram as produtividades de massa fresca e seca. Verificou-se que a lâmina de irrigação repondo 100% da ETc proporcionou maior rendimento de biomassa e que as cultivares sacarinas apresentaram baixa capacidade de rebrota, sendo as variedades IPA SF 15, IPA 467-4-2 e a BRS Ponta Negra as mais produtivas.Palavras-chave: Sorghum bicolor, semiárido, estresse hídrico. GROWTH AND PRODUCTION OF THE FIRST REGROWTH OF SORGO CULTIVARS UNDER DIFFERENT IRRIGATION BLADES  ABSTRACT - Behavior of re-growth of saccharin sorghum and forage sorghum cultivars in the semi-arid region of the State of Rio Grande do Norte (RN), Brazil, under different irrigation blades was evaluated. The experiment was carried out in March 2015 under field conditions in an argisol in the municipality of Upanema-RN, northeast region of Brazil. The experiment was carried out in a complete randomized complete block design with four replications (4 x 5 x 2), four irrigation blades (50, 75, 100 and 125% of ETc estimated from climatic data of Mossoró-RN) and five cultivars (two saccharin cultivars, BRS 506 and BRS 511, and three forage cultivars, IPA 467-4-2, IPA SF-15 and BRS Ponta Negra) combined with two planting densities in the subplots. Fresh and dry mass productivities were evaluated. The results were submitted to analysis of variance (F test) and the means were compared by the Tukey test at the 5% probability level, using the SAEG 8.1 software. It was verified that the irrigation blade replacing 100% of the ETc provided a higher yield of biomass and that the saccharin cultivars presented a low sprout capacity, with the varieties IPA SF 15, IPA 467-4-2 and BRS Ponta Negra being the most productive. Keywords: Sorghum bicolor, semiarid, water stress. 

scholarly journals Green manuring with Calotropis procera for the production of coriander in two growing seasons

2017 ◽  
Vol 41 (5) ◽  
pp. 533-542 ◽  
Author(s):  
Ênio Gomes Flôr Souza ◽  
Almir Rogerio Evangelista de Souza ◽  
Enielson Bezerra Soares ◽  
Aurélio Paes Barros Júnior ◽  
Lindomar Maria da Silveira ◽  
...  
Keyword(s):  
Arid Region ◽  
Dry Mass ◽  
Calotropis Procera ◽  
Agronomic Performance ◽  
Vegetable Crops ◽  
Productive Performance ◽  
Growing Seasons ◽  
Number Of Stems ◽  
Semi Arid Region ◽  
Semi Arid

ABSTRACT The use of spontaneous species of the Caatinga biome can contribute significantly to the nutritional demand of vegetable crops, thereby providing an agroecological and sustainable form of production. The objective of this research was to determine the effects of different biomasses of Calotropis procera (rooster tree) and times of incorporation into the soil of green manure during two growing seasons on the agronomic performance of coriander cv. Verdão produced in Serra Talhada, a semi-arid region of Pernambuco, Brazil. The experimental design was randomized blocks with three replications. The treatments were arranged in a 4 x 4 factorial scheme, with the first factor consisting of biomass amounts of C. procera (5.4, 8.8, 12.2 and 15.6 t ha-1 on a dry basis) and the second by the incorporation times into the soil (0, 10, 20 and 30 days before coriander planting). The evaluated characteristics were plant height, number of stems per plant, yield of green mass and dry mass of shoot. The best productive performance of coriander was observed in amounts of 12.2 (spring) and 8.8 (autumn-winter) t ha-1 C. procera added to the soil, with an ideal incorporation time of 13 (spring) and 23 (autumn-winter) days before sowing of the crop and with larger accumulations of green and dry mass of the shoot being obtained in autumn-winter.

scholarly journals Economic efficiency of innovation in the restoration of soil resources in organic agricultural production

2020 ◽  
Vol 210 ◽  
pp. 04004
Author(s):  
Ludmila Kachanova ◽  
Anatoly Bondarenko
Keyword(s):  
Economic Efficiency ◽  
Agricultural Production ◽  
Agricultural Sector ◽  
Animal Husbandry ◽  
Economic Feasibility ◽  
Innovative Approach ◽  
Practical Implementation ◽  
Net Income ◽  
Soil Resources ◽  
High Yields

The intensification of the use of the main means of agricultural production dictates the need to restore and increase soil fertility. The purpose of the study is to develop a methodological basis for calculating the economic efficiency of innovation in the restoration of soil resources in organic agricultural production with an assessment of its practical implementation in the conditions of arid agriculture in the south of Russia. To prevent the loss of a significant part of soil resources, their restoration, an innovative approach to organotransformation in the restoration of soil resources has been developed. The proposed approach allows integrating organic farming and animal husbandry with the processes of restoration of soil resources for the implementation of organotransformation of soil formers in degraded soil resources. In the methodology for determining the economic efficiency of the innovative approach of organotransformation, five modifications are proposed. The implementation of the recommended modification provides for the lowest costs for the restoration of soil resources, a sufficient level of fertility for obtaining high yields, the net income is about 27 thousand rubles/ha or 454 rubles/c. The application of the developed approach confirms the economic feasibility of innovation in the agricultural sector of the economy in organic agriculture.

scholarly journals Growth and yield of potato genotypes in the Brazilian Midwest

2020 ◽  
Vol 50 ◽  
Author(s):  
Gabriel Emiliano Pereira ◽  
Carlos Francisco Ragassi ◽  
Agnaldo Donizete Ferreira de Carvalho ◽  
Giovani Olegário da Silva ◽  
Michelle Sousa Vilela
Keyword(s):  
Growth Curve ◽  
Block Design ◽  
Maximum Yield ◽  
Federal District ◽  
Dry Mass ◽  
Climatic Conditions ◽  
Growth And Yield ◽  
Yield Potential ◽  
Area Index ◽  
Experimental Block

ABSTRACT The knowledge of the plant growth pattern under specific climatic conditions (growth curve) is the basis for exploiting the maximum yield potential of potato genotypes. This study aimed to establish the growth curve, as well as to evaluate the agronomic characteristics, yield and specific gravity of tubers of three potato cultivars and one elite clone, thus providing basic information on the productive characteristics of these genotypes in the Brazilian Midwest. A randomized experimental block design, with three replications, was used. The dry mass accumulated by the tubers varied from 6.28 (Agata) to 9.75 t ha-1 [F183-08-01 (F183)]; the total mass of tubers from 35.33 (BRSIPR Bel) to 58.60 t ha-1 (F183); the mass of marketable tubers from 23.46 (Asterix) to 48.24 t ha-1 (F183); and the leaf area index from 2.86 (Agata) to 10.60 (F183). F183 showed a good adaptation to the cultivation conditions of the Federal District, being strongly recommended for this region.

scholarly journals Agro-economic responsiveness of radish associations with cowpea in the presence of different amounts of Calotropis procera, spatial arrangements and agricultural crops

2018 ◽  
Vol 42 (4) ◽  
pp. 350-363 ◽  
Author(s):  
Renato Leandro Costa Nunes ◽  
Francisco Bezerra Neto ◽  
Jailma Suerda Silva de Lima ◽  
Aurélio Paes Barros Júnior ◽  
Aridênia Peixoto Chaves ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Food Security ◽  
Block Design ◽  
Dry Mass ◽  
Calotropis Procera ◽  
Income Generation ◽  
Agricultural Crops ◽  
Randomized Block Design ◽  
The Media ◽  
Cropping Seasons

ABSTRACT The integration of research emphasizing sustainable development, employment, income generation and food security has been highlighted in the media. The objective of this research was to evaluate the agro-economic responsiveness of radish associations with cowpea in the presence of different amounts of roostertree, spatial arrangements and agricultural crops. The experimental design was a randomized block design with four replications, with treatments arranged in a 4 x 3 factorial scheme, where the first factor consisted of four amounts of C. procera incorporated in the soil (20, 35, 50 and 65 t ha-1 on a dry basis) and the second factor of three spatial arrangements (2:2, 3:3, and 4:4) in two cropping seasons. Radish samples were evaluated for plant height, dry mass of shoots, total and commercial productivity of roots, productivity of scrap roots, and dry mass of roots, while in cowpea, vegetation was assessed for length of green pods, number of pods per square meter, productivity and dry mass of green pods, number of green grains per pod, weight of 100 green grains, and yield and dry mass of green grains. The economic indicators of monetary advantage and modified monetary advantage were used in the evaluation of efficiency. A greater agro-economic responsiveness of the intercropping of radish and cowpea crops was obtained with the incorporation of 56.44 t ha-1 of C. procera. The spatial arrangements of 3:3 and 4:4 had better agronomic and economic responsiveness. The association between radish and cowpea is feasible when the crops are fertilized with C. procera.

Sign in / Sign up

Export Citation Format

Share Document