Agronomic performance and economic profitability of lettuce fertilized with Calotropis procera as a green manure in a single crop

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.

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Comportamiento agronómico de variedades de avena (Avena sativa L.), con niveles de hoja de coca (Erythroxylum coca) molida como abono verde en Kallutaca, La Paz

Revista de Investigación e Innovación Agropecuaria y de Recursos Naturales ◽

10.53287/iwow6036su98o ◽

2021 ◽

Vol 8 (1) ◽

pp. 17-24

Author(s):

Eddy Diego Gutiérrez Gonzales ◽

Octavio Mártir Coria Garcia ◽

Verónica Elisa Condori Murga

Keyword(s):

Plant Height ◽

Avena Sativa ◽

Green Manure ◽

Dry Matter ◽

Block Design ◽

Agronomic Performance ◽

Dry Matter Yield ◽

La Paz ◽

Differential Behavior ◽

Randomized Block Design

In the Central Altiplano of Bolivia, the production of forage oats is important for the feeding of herbivorous livestock; however, the yields obtained at the producer level register low averages in dry matter. The objective was to evaluate the agronomic performance of three oat varieties, with levels of ground coca leaf as green manure, at the Kallutaca Experimental Center in the department of La Paz. A randomized block design was applied with a divided plot arrangement with four replications. The factors were oat varieties (Aguila, Gaviota and Texas) and levels of ground coca (0, 30 and 60 t ha-1), with variables days to emergence, number of tillers, plant height and dry matter yield. The results at days to emergence show differences in time 60 and 0 t ha-1 with 14 and 11 days. In relation to the number of tillers per plant, in varieties the behavior is similar with an average of 7 tillers; in relation to interaction, the values show significance. In plant height, the means recorded for the Texas variety were 137.10 cm, in the interaction the values were equal. In dry matter, there were significant differences in 60 and 30 t ha-1 with 16 427.27 and 15 281.82 kgDM ha-1, the Gaviota variety with 14 706.06 kgDM ha-1. The treatments influenced the agronomic behavior of the variables studied, the levels of green manure affected oat yield, mainly the number of tillers, which in turn affected the dry matter yield, finally the oat varieties have a differential behavior with the change in the levels of green manure.

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Organic cabbage growth using green manure in pre-cultivation and organic top dressing fertilization

Horticultura Brasileira ◽

10.1590/s0102-053620180415 ◽

2018 ◽

Vol 36 (4) ◽

pp. 515-520

Author(s):

Ana Amélia S Cordeiro ◽

Marinete B Rodrigues ◽

Murilo Gonçalves Júnior ◽

José Antônio A Espíndola ◽

Ednaldo da S Araújo ◽

...

Keyword(s):

Green Manure ◽

Block Design ◽

Dry Mass ◽

Agronomic Performance ◽

Maize Population ◽

Maize Populations ◽

Randomized Block Design ◽

Corn Productivity ◽

Shoot Mass ◽

Organic Compost

ABSTRACT The experiment was conducted in (Integrated Agroecological Production System in Seropedica-RJ) Sistema Integrado de Produção Agroecológica (SIPA), Seropédica-RJ, to evaluate the effect of two maize populations in relation to baby corn productivity and shoot mass, to determine the contribution of pre-cultivated maize, green velvet and organic topdressing fertilization in the agronomic performance of cabbage (Brassica oleracea var. capitata). The experimental design consisted of randomized blocks with three treatments (maize population of 100,000 and 200,000 plants ha-1 and green velvet at 100,000 plants ha-1) and eight replicates. After that, cabbage was transplanted in the straw of these species, adopting a randomized block design allocated in split plots, totalizing six treatments, being three pre-cultivation practices and two organic topdressing fertilization doses (with or without 50 g fermented organic compost per planting hole). Considering “baby corn” productivity, no differences were observed compared to maize populations, with an average productivity of 822.5 kg ha-1. Green velvet pre-cultivation obtained the highest shoot dry mass (8.4 t ha-1). Cabbage crop was improved by green velvet pre-cultivation, reaching 60.7 t ha-1 and organic topdressing fertilization, reaching 60.4 t ha-1; however, in the presence of green velvet straw, topdressing fertilization did not promote additional yield benefit of this crop. Thus, we noticed that green manure using green velvet increased cabbage productivity, submitted to organic management, when compared to maize pre-cultivation, making it able to replace organic topdressing fertilization.

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Agronomic performance in radish fertilised with Calotropis procera (Ait.) R. Br. in two growing seasons

Revista Ciência Agronômica ◽

10.5935/1806-6690.20170038 ◽

2017 ◽

Vol 48 (2) ◽

Author(s):

Antonia Francilene Alves da Silva ◽

Ênio Gomes Flôr Souza ◽

Aurélio Paes Barros Júnior ◽

Francisco Bezerra Neto ◽

Lindomar Maria da Silveira

Keyword(s):

Calotropis Procera ◽

Agronomic Performance ◽

Growing Seasons

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

Ciência e Agrotecnologia ◽

10.1590/1413-70542017415013417 ◽

2017 ◽

Vol 41 (5) ◽

pp. 533-542 ◽

Cited By ~ 1

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.

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Agronomic performance of carrot fertilized with roostertree [Calotropis procera (Ait.) R. BR.] in two growing seasons

Bioscience Journal ◽

10.14393//bj-v33n6a2017-37556 ◽

2017 ◽

pp. 1401-1411

Author(s):

Almir Rogério Evangelista de Souza ◽

Ênio Gomes Flôr Souza ◽

Manoel Galdino dos Santos ◽

Euvaldo Pereira de Cerqueira Júnior ◽

Rafaela Félix França ◽

...

Keyword(s):

Calotropis Procera ◽

Agronomic Performance ◽

Growing Seasons

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ECONOMIC EVALUATION OF LETTUCE FERTILIZED WITH BIOMASS OF Calotropis procera IN TWO GROWING SEASONS

Revista Caatinga ◽

10.1590/1983-21252019v32n104rc ◽

2019 ◽

Vol 32 (1) ◽

pp. 27-40

Author(s):

Ênio Gomes Flôr Souza ◽

Falkner Michael de Sousa Santana ◽

Bruno Novaes Menezes Martins ◽

Ygor Henrique Leal ◽

Aurélio Paes Barros Júnior ◽

...

Keyword(s):

Green Manure ◽

Production Systems ◽

Organic Production ◽

Production Costs ◽

Calotropis Procera ◽

Vegetable Production ◽

Growing Seasons ◽

Yield Production ◽

Green Mass Yield ◽

Intensive Land Use

ABSTRACT Vegetable production is an impactful activity, characterized by intensive land use, high input demand, and it requires strategic management adoption, especially in sustainable production systems, where the pillars of sustainability (environmental, social and economic) must be respected. In this sense, the objective of this work was to evaluate economic indicators of lettuce production using Caatinga spontaneous species (Calotropis procera: rooster tree) as fertilizer and cultivated in two seasons (spring and fall-winter) in the municipality of Serra Talhada, PE. The experimental design was in randomized blocks, arranged in a 4 x 4 factorial scheme, with three replications. The first factor was the biomass amounts of green manure (5.4, 8.8, 12.2 and 15.6 t ha-1 on a dry basis); and the second was their incorporation times in the soil (0, 10, 20 and 30 days before lettuce transplanting). The green mass yield, production costs, rate of return, and net profit margin were determined. The amount 15.6 t ha-1 of C. procera allowed higher profitability to the organic production of lettuce, and it is considered ideal to incorporate the green manure 11 (spring) and 15 (fall-winter) days before transplanting the vegetable. The spring crop promoted a superior economic return to the fall-winter planting, demonstrating economic viability even in the smallest amount of C. procera.

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PRODUCTION OF LETTUCE UNDER GREEN MANURING WITH Calotropis procera IN TWO CULTIVATION SEASONS

Revista Caatinga ◽

10.1590/1983-21252017v30n214rc ◽

2017 ◽

Vol 30 (2) ◽

pp. 391-400 ◽

Cited By ~ 3

Author(s):

ÊNIO GOMES FLÔR SOUZA ◽

EDSON FERREIRA DE LIMA ◽

AURÉLIO PAES BARROS JÚNIOR ◽

LINDOMAR MARIA DA SILVEIRA ◽

FRANCISCO BEZERRA NETO ◽

...

Keyword(s):

Land Use ◽

Green Manure ◽

Ecological Approach ◽

Calotropis Procera ◽

Vegetable Crops ◽

High Input ◽

Number Of Leaves ◽

Cropping Seasons ◽

Shoot Mass ◽

Intensive Land Use

ABSTRACT The production of vegetable crops is characterized by intensive land use, high input demands and the requirement of strategic management adoption with an agro-ecological approach. In this study, agronomic indicators were evaluated in lettuce fertilized with different amounts of roostertree biomass; fertilizer was incorporated into the soil at distinct times and seedlings were planted in two cropping seasons (spring and autumn-winter) in Serra Talhada, Pernambuco state, Brazil. The experimental design consisted of randomized complete blocks with three replications and treatments arranged in a 4 x 4 factorial scheme. The first factor was the amounts of roostertree biomass (5.4, 8.8, 12.2, and 15.6 t ha -1 on a dry basis) and the second the manure incorporation times (0, 10, 20, and 30 days before lettuce transplanting). The variables evaluated in the lettuce crop were: plant height and diameter, number of leaves per plant, productivity of green mass, and dry shoot mass. Maximum productivity and dry shoot mass were obtained using fertilization with 15.6 t ha -1. A synchrony between supply of nutrients by green manure and the period of maximum demand by lettuce was observed in the incorporation times of 10 (spring) and 20 (autumn-winter) days before transplanting. Cultivation in the spring resulted in higher vegetative growth.

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