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 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 EFFECT OF ROOSTER TREE GREEN MANURE ON CARROT AND LETTUCE INTERCROPPING SYSTEM

2018 ◽  
Vol 31 (3) ◽  
pp. 551-559 ◽  
Author(s):  
RICARDO CARLOS PEREIRA DA SILVA ◽  
FRANCISCO BEZERRA NETO ◽  
MAIELE LEANDRO DA SILVA ◽  
AURÉLIO PAES BARROS JÚNIOR ◽  
ANTÔNIO EWERTON DA SILVA ALMEIDA ◽  
...  
Keyword(s):  
Experimental Design ◽  
Green Manure ◽  
Cropping System ◽  
Agronomic Performance ◽  
Productive Performance ◽  
Tree Biomass ◽  
Agronomic Efficiency ◽  
Green Manuring ◽  
Increase Productivity

ABSTRACT Intercropping is a cropping system that involves cultivating two or more crops in the same area with different cycles and vegetative architectures. One of the ways to increase productivity and efficiency in this cropping system is through green manuring and by properly considering crop combinations, cultivation timing, and planting configuration of the component crops. Thus, the aim of this study was to evaluate the productive performance of carrot and lettuce intercropping systems under different amounts of rooster tree biomass incorporated into the soil and under different spatial arrangements. The study was conducted at the experimental farm Rafael Fernandes, RN, Brazil, in the period from September 2012 to January 2013, in an experimental design of randomized complete blocks in a 4 x 3 factorial scheme, with twelve treatments and 3 replicates. The treatments consisted of the combination of four rooster tree biomass amounts incorporated into the soil (10, 25, 40 and 55 t ha-1 on a dry basis) with three predetermined spatial arrangements between the component crops (2:2, 3:3 and 4:4), which correspond to the rows of carrot alternating with the rows of lettuce. The agronomic performance of the carrot and lettuce intercropping system was optimized in the amount of approximately 46.36 t ha-1 of rooster tree incorporated into the soil. There was no influence of the spatial arrangements on the agronomic efficiency of the carrot and lettuce intercropping. The use of rooster tree as green manure is agronomically viable in intercropped systems of carrot and lettuce.

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 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-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 PRODUCTIVE PERFORMANCE OF CARROT AND COWPEA INTERCROPPING SYSTEM UNDER DIFFERENT SPATIAL ARRANGEMENTS AND POPULATION DENSITIES

2018 ◽  
Vol 31 (1) ◽  
pp. 19-27 ◽  
Author(s):  
GIORGIO MENDES RIBEIRO ◽  
FRANCISCO BEZERRA NETO ◽  
JAILMA SUERDA SILVA DE LIMA ◽  
MAIELE LEANDRO DA SILVA ◽  
AURÉLIO PAES BARROS JÚNIOR ◽  
...  
Keyword(s):  
Experimental Design ◽  
Population Density ◽  
Economic Performance ◽  
Crop Yields ◽  
Spatial Arrangement ◽  
Root Production ◽  
Calotropis Procera ◽  
Productive Performance ◽  
Population Densities ◽  
Caatinga Biome

ABSTRACT Spatial arrangement and population density of component cultures, when well structured, may contribute to increased crop yields relative to monocultures. Thus, the objective of this work was to evaluate the productive performance of carrot and cowpea in an intercropping system under different spatial arrangements and population densities. This research was conducted on the “Rafael Fernandes” experimental farm of the Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, RN, Brazil. The experimental design was a randomized complete block with four replicates, where the treatments were arranged in a 3 × 4 factorial scheme, in which the first factor was three spatial arrangements (2:2, 3:3, and 4:4) and the second factor was four different population densities of cowpea (100%, 80%, 60%, and 40% of the recommended population in the single crop [RPSC]). Rooster tree Calotropis procera (Ait.) R.Br., a spontaneous species of the „Caatinga‟ biome, was used as fertilizer. The characteristics evaluated in carrot were as follows: total and commercial productivity of roots and classified root production. The following characteristics were evaluated for cowpea: number of pods per square meter, length and yield of green pods, number of grains per pod, 100grain weight, and yield of green grains. The modified monetary advantage was used to evaluate the feasibility of the intercropped systems. Spatial arrangements between the component cultures did not influence the agroeconomic performance of the carrot-cowpea intercropping system. The highest agro-economic performance of the carrot-cowpea intercropping was obtained in the population of cowpea, which was 42% of the RPSC.

scholarly journals Water Use Efficiencies of Different Maturity Group Soybean Cultivars in the Humid Mississippi Delta

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1496
Author(s):  
Srinivasa R. Pinnamaneni ◽  
Saseendran S. Anapalli ◽  
Daniel K. Fisher ◽  
Krishna N. Reddy
Keyword(s):  
Glycine Max ◽  
Water Resources ◽  
Experimental Design ◽  
Grain Yield ◽  
Water Use ◽  
Production System ◽  
Mississippi Delta ◽  
Maturity Group ◽  
Glycine Max L ◽  
Water Use Efficiencies

Introducing alternative cultivars with enhanced water use efficiencies can help alleviate pressure on groundwater for crop irrigations in Mississippi (MS) Delta. A two-year field study was conducted in 2019–2020 to compare the water use efficiencies (WUE) of recently released and pre-released soybean {Glycine max (L.) Merr.} cultivars in maturity group (MG) III (‘P37A78’, ‘LG03-4561-14’), IV (‘Dyna-gro 4516x’, ‘DS25-1, DT97-4290’), and V (‘S12-1362’, ‘S14-16306’) in the MS Delta. The experimental design was a split-plot with cultivar as the first factor and the second factor was water variant irrigation (IR) and no irrigation (RF, rainfed), replicated three times. The MG IV cultivar Dyna-gro 4516x recorded the highest grain yield and WUE: grain yields were 4.58 Mg ha−1 and 3.89 Mg ha−1 under IR and RF, respectively in 2019, and 4.74 Mg ha−1 and 4.35 Mg ha−1 in 2020. The WUE were 7.2 and 6.9 kg ha−1 mm−1, respectively, in 2019 under IR and RF, and 13.4 and 16.9 kg ha−1 mm−1 in 2020. The data reveals that ‘Dyna-gro 4516x’ (MG IV), ‘LG03-4561-14’ (MG III), and ‘P37A78’ (MG III) are best adapted to the early soybean production system (ESPS) in MS Delta region for sustainable production for conserving water resources.

scholarly journals EFFECT OF DIFFERENT DOSES OF VERMICOMPOST ON THE GROWTH OF APULEIA LEIOCARPA (VOG) MACBR. SEEDLINGS

2005 ◽  
Vol 3 (2) ◽  
pp. 11 ◽  
Author(s):  
Marcos Vinicius Winckler Caldeira ◽  
Peter Spathelf ◽  
Leonir Rodrigues Barichello ◽  
Hamilton Luiz Munari Vogel ◽  
Mauro Valdir Schumacher
Keyword(s):  
Experimental Design ◽  
Biomass Production ◽  
Dry Matter ◽  
Growth Response ◽  
Diameter Growth ◽  
Seedling Production ◽  
Seedling Germination ◽  
Different Doses

The objective of this study was to determine the best vermicompost dose for seedling production of Apuleia leiocarpa. The experiment consisted of five treatments, which were conducted in a greenhouse. The following doses of vermicompost were tested: control (without vermicompost); 10% vermicompost; 20% vermicompost; 30% vermicompost and 40% vermicompost of the total container volume (185 cm3). The experimental design was entirely randomised. The substratum used was bark of Pinus sp., which was triturated and composted. A hundred days after seedling germination, the following variables were analysed: height and diameter growth, above ground dry matter, root dry matter and total dry matter. The 30% vermicompost doses showed to be optimum in growth response and biomass production of Apuleia leiocarpa seedlings.

scholarly journals Doses and times of nitrogen application via leaf in the production of corn for silage in the Southern Amazon

2021 ◽  
Vol 38 (2) ◽  
pp. 21-260
Author(s):  
Fellipe Lemes da Rosa ◽  
Oscar Mitsuo Yamashita ◽  
Marco Camillo de Carvalho ◽  
Rivanildo Dallacort ◽  
Adriano Maltezo da Rocha ◽  
...  
Keyword(s):  
Experimental Design ◽  
Foliar Application ◽  
Brazilian Amazon ◽  
Nitrogen Application ◽  
Soil Fertilization ◽  
Foliar Nitrogen ◽  
Production Factors ◽  
N Rates ◽  
Leaf Fertilizer ◽  
Different Doses

The objective was to evaluate the application of foliar nitrogen in different doses and times, as a complement to soil fertilization. The work was conducted in a rural area of the municipality of Terra Nova do Norte – MT, located in the southern of brazilian Amazon. The treatments were a combination of foliar applications of nitrogen at doses of 0, 250, 500 and 750 mL.ha-1, and two application times with different intervals: 15 and 40 days after emergence; and 25 and 40 days after the emergency. The experimental design was a randomized block with four replications, in a factorial 4 x 2, totaling eight treatments. It was found that the variables green mass productivity and dried plant and ear and ear length responded positively as the N rates and application times. It was also observed that the foliar application of nitrogen increased the productivity of corn for silage, and better results are obtained from 750 mL.ha-1 of the studied leaf fertilizer. There was no increase in production factors when the foliar application of nitrogen was split.

scholarly journals Time of introducing component crop influences productivity of intercropping system

2020 ◽  
Vol 55 (2) ◽  
pp. 10-25
Author(s):  
M. O. Iwuagwu ◽  
D. A. Okpara ◽  
C. O. Muoneke
Keyword(s):  
Experimental Design ◽  
Field Experiment ◽  
The Other ◽  
Growth And Yield ◽  
Pod Yield ◽  
South Eastern ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Cropping Seasons ◽  
Horticultural Research

Field experiment was conducted at National Horticultural Research Institute (NIHORT), Mbato Sub-station, Okigwe, Imo State, South-eastern Nigeria in the 2012 and 2013 cropping seasons to establish the most appropriate time to introduce component crops in cocoyam/cowpea mixture. Five different planting schemes (two and four weeks before, two and four weeks after and same day) and two cowpea genotypes (climbing Akidienu and erect IT97K-499-35) were used. The component crops were grown in monocultures to assess the productivity of the systems. The experimental design used was a completely randomized design with three replicates. Growth and yield of cocoyam and the cowpea genotypes increased significantly (P<0.05) when either of the component crops was planted earlier than the other. Intercropping reduced significantly (P<0.05) cocoyam yield by 0.7 − 74% in IT97K-499-35 and 22 − 80% in Akidienu. Sowing the cowpea genotypes the same day or before cocoyam resulted in over-yielding of cowpea, whereas sowing Akidienu and IT97K-499-35 after cocoyam caused pod yield reductions of 64% − 73% and 32% − 59% on average, respectively. Cocoyam planted two weeks before IT97K-499-35 produced more satisfactory yields of the intercrops than the other planting schedules with LER, LEC and ATER of 2.15, 1.03 and 1.57, respectively.

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