scholarly journals Intercropping period between species of green manures and organically-fertilized coffee plantation

2018 ◽  
Vol 13 (1) ◽  
pp. 9 ◽  
Author(s):  
Rosileyde Golçalves Siqueira Cardoso ◽  
Adriene Woods Pedrosa ◽  
Mateus Cupertino Rodrigues ◽  
Ricardo Henrique Silva Santos ◽  
Hermínia Emília Prieto Martinez ◽  
...  
Keyword(s):  
Nitrogen Nutrition ◽  
Recommended Dose ◽  
Initial Growth ◽  
Green Manures ◽  
Organic Fertilization ◽  
Coffee Plantation ◽  
Node Number ◽  
Jack Bean ◽  
Bean Yield ◽  
Hyacinth Bean

The adequate supply of nitrogen to coffee plantation is one of the main challenges of organic agriculture. The aim of the present study was to evaluate the effect of organic fertilization with two legume species in different intercropping periods on nitrogen nutrition, initial growth and productivity of coffee plantation. The experimental design was in randomized blocks, in 2x4 split-plot factorial design, being that the plot consisted of two intercrops (coffee+jack bean and coffee+hyacinth bean) and the four intercropping periods (30, 60, 90 and 120 days after sowing of the legume), and the subplot by 50% and 100% of fertilization for the coffee plantation. The increase in the intercropping period between legumes and coffee plantation favored a greater increase in height and node number of coffee trees, besides showing higher heights when fertilized with 50% of the recommended dose and intercropped with hyacinth bean. The intercropping with the hyacinth bean resulted in a larger crown diameter of coffee trees in 2010 and a larger diameter accumulated in the two evaluated years. Higher N contents were found in coffee trees fertilized with 100% of the recommended dose. The legumes supplied the nutritional requirements of the coffee harvest fertilized with 50% of the dose. The bean yield of the processed coffee is not affected by the intercropping with the green manures of jack bean or hyacinth bean.

Decomposition and nitrogen mineralization from green manures intercropped with coffee tree

2018 ◽  
Vol 13 (1) ◽  
pp. 23
Author(s):  
Rosileyde Golçalves Siqueira Cardoso ◽  
Adriene Woods Pedrosa ◽  
Mateus Cupertino Rodrigues ◽  
Ricardo Henrique Silva Santos ◽  
Paulo Roberto Cecon ◽  
...  
Keyword(s):  
Nitrogen Mineralization ◽  
N Mineralization ◽  
Dry Matter ◽  
Nitrogen Concentration ◽  
Growth Time ◽  
Dry Matter Content ◽  
Green Manures ◽  
Coffee Tree ◽  
Jack Bean ◽  
Hyacinth Bean

The knowledge about the rate of decomposition and nitrogen mineralization of green manures provides synchronization with the higher absorption stage by the coffee tree. The rate of decomposition and nitrogen mineralization varies according to the species of green manure and with the environmental factors. The aim of the present study was to evaluate the decomposition and nitrogen mineralization of two green manures intercropped with coffee trees for three different periods. The experiment was divided into two designs for statistical analysis, one referring to the characterization of plant material (fresh mass, dry matter, dry matter content, nitrogen concentration and accumulation in the jack bean (Canavalia ensiformis) and hyacinth bean (Dolichos lablab) and another to evaluate the rate of decomposition and N mineralization of these species. The decomposition rate decreased in both species as their growth time increased in the field. The decomposition was influenced by the phenology of green manures. Nitrogen mineralization of the jack bean decreased as the growth period in the field increased and was faster than hyacinth bean only when cut at 60 days. The N mineralization was slower than mass decomposition in both species.

scholarly journals Production and Nutrient Accumulation of Common Bean Cultivars under Competition with Weed

2019 ◽  
Vol 37 ◽  
Author(s):  
C.G. COELHO ◽  
L.P. DALVI ◽  
L.S.G. OLIVEIRA ◽  
F.L. OLIVEIRA
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Chlorophyll Content ◽  
Nutritional Quality ◽  
Initial Growth ◽  
Nutrient Accumulation ◽  
Randomized Design ◽  
Crop Cycle ◽  
Bean Yield ◽  
Completely Randomized Design

ABSTRACT: Improper management of weeds is one of the causes of low bean yield, as it is very susceptible to interference due to their slow initial growth. This study aimed to evaluate the influence of dayflower on grain yield and nutrient accumulation of bean cultivars. The experiment was carried out in a screened house, in 5 L pots, in a 2 x 4 factorial scheme. Factor 1 corresponded to the presence or absence of weeds, and factor 2 bean cultivars: BRS Pontal, BRS Agreste, BRS Ametista and BRS Estilo. The experiment was arranged in a completely randomized design with five replications. The coexistence of bean and weed was maintained throughout the crop cycle. Chlorophyll content, number of pods per plant, number of grains per plant, nutrients contents (N - nitrogen, P - phosphorus, K - potassium, Ca - calcium, Mg - magnesium, Mn - manganese, Fe - iron and Zn - zinc) in grains were evaluated. Competition with weeds negatively influenced chlorophyll content, number of pods, yield and N content in grains. The interaction was significant to P, Mg and Fe contents in grains, demonstrating that competition with weeds may impair allocation of these nutrients, resulting in grains of inferior nutritional quality. The cultivar BRS Agreste was more efficient to accumulate P and Mg in grains in competition with dayflower.

scholarly journals GROWTH RESPONSE OF Bauhinia Variegata L. TO INOCULATION AND ORGANIC FERTILIZATION

2019 ◽  
Vol 43 (1) ◽  
Author(s):  
Caliane da Silva Braulio ◽  
Rafaela Simão Abrahão Nóbrega ◽  
Flávia Melo Moreira ◽  
Ângela Santos de Jesus Cavalcante dos Anjos ◽  
Janildes de Jesus da Silva ◽  
...  
Keyword(s):  
Dry Mass ◽  
Additional Treatment ◽  
Initial Growth ◽  
Stem Height ◽  
Organic Fertilization ◽  
Aerial Portion ◽  
Chemical Fertilization ◽  
Number Of Leaves ◽  
Bauhinia Variegata ◽  
Organic Compost

ABSTRACT The objective of this work was to evaluate the initial growth of Bauhinia variegata L. when inoculated and fertilized with different proportions of organic compost. The experiment was performed in greenhouse in a completely random factorial (2 x 5) + 1 design, with 9 replicates, constituted by the presence or absence of inoculation, five proportions of organic compost:soil (0:100, 20:40, 40:60, 60:40 and 80:20; v/v) and one additional treatment with chemical fertilization without inoculation. Ninety days after sowing, the plant height, stem diameter, number of leaves, radicular length, dry mass of the aerial portion, dry mass of roots, total dry mass, Dicksosn's quality index (IQD), contents of nitrogen and carbon and the C/N ratio of the dry mass of the aerial portion, were evaluated. The inoculation with diazotrophic bacteria stimulated growth in height, stem height/diameter ratio, dry mass of the aerial portion, dry mass of roots, total dry mass and the foliar contents of nitrogen and carbon in seedlings of B. variegata L. Seedlings grown using organic compost showed better development when compared to seedlings grown only in soil with or without chemical fertilization. Seedlings grown with formulated substrate at a proportion of 16:84 (organic compost:soil + inoculation) exhibited higher IQD, therefore, this constitutes the recommended proportion for production of B.variegata L. seedlings.

scholarly journals DESENVOLVIMENTO DE Agave sisalana Perrine SOB DIFERENTES MANEJOS DE ADUBAÇÃO E CONSÓRCIO

2018 ◽  
Vol 14 (4) ◽  
pp. 39-46
Author(s):  
Ana Beatriz Torres Melo de Freitas ◽  
Annie Maia Batista Santos ◽  
João Paulo de Oliveira Santos ◽  
Jardel da Silva Souza ◽  
Fábio Mielezrski
Keyword(s):  
Common Bean ◽  
Technology Use ◽  
Production Systems ◽  
Block Design ◽  
Organic Chemical ◽  
Initial Growth ◽  
Organic Fertilization ◽  
Initial Development ◽  
Semi Arid Region ◽  
Agave Sisalana

The Sisal (Agave sisalana Perrine) is a crop very important for the semi-arid region of Brazil, constituting an important source of income in regions that lack options that help in their development. However, studies regarding the development of this crop are scarce, reflecting on the low technology use and ancient practices used in the production systems. Theobject of this studywas to evaluated the initial growth development of plants of Sisal (Agave sisalana Perrine) under different sources of chemical and organic fertilization and presence and absence of intercropping with common bean (Phaseolus vulgaris), in the city of Areia, Paraíba. The experiment was carried out in a randomized complete block design (RCBD), in a 2x3 factorial scheme, composed of two cultivation systems (alone or intercropped) and three fertilizationtypes (organic, chemical and no fertilization), totaling 24 treatments with four replications in an area of 25 m² each. The results showed an influence effect of the source of fertilization and the intercroppingon the initial development of the crop, and the best results obtained were with the organic fertilization and the intercropping with common bean.

scholarly journals Crescimento inicial de Erythrina velutina em diferentes substratos com adubação orgânica

2016 ◽  
Vol 11 (5) ◽  
pp. 30
Author(s):  
Mychelle Karla Teixeira de Oliveira ◽  
Jeferson Luiz Dallabona Dombroski ◽  
Rita De Cássia Araújo de Medeiros ◽  
Valmor Elias Tomczak ◽  
Raul Martins de Farias
Keyword(s):  
Growth Rate ◽  
Leaf Area ◽  
Folk Medicine ◽  
Weight Ratio ◽  
Dry Weight ◽  
Cattle Manure ◽  
Experimental Unit ◽  
Initial Growth ◽  
Organic Fertilization ◽  
Basal Diameter

<p><em>Erythrina velutina </em>é uma espécie arbórea nativa do Nordeste Brasileiro, empregada no paisagismo, na regeneração de áreas degradadas e na medicina popular. Objetivou-se com este trabalho avaliar o crescimento de mudas de <em>Erythrina velutina</em> produzidas em substratos com adubação orgânica. O experimento foi conduzido em delineamento inteiramente casualizado, com parcelas subdivididas no tempo, com cinco repetições, sendo a unidade experimental representada por 20 mudas. O primeiro fator foi constituído por dois substratos (solo de Mossoró-RN + esterco bovino (4:1) e solo de Angicos-RN + esterco bovino (4:1)), e o segundo fator constituído de dois acessos. Ao longo do experimento foram realizadas coletas, para avaliação de crescimento (28, 56, 84, 112 e 140 dias após a semeadura), com intervalos de 28 dias. Em cada coleta, as mudas foram analisadas quanto ao comprimento da parte aérea, ao número de folhas, ao diâmetro de coleto, à área foliar, à massa da matéria seca (caule, folhas, raiz, parte aérea, relação da parte aérea e raiz, e total). Pode-se concluir que os acessos de <em>Erythrina</em> <em>velutina</em> tiveram crescimento rápido e uniforme quando produzidas nos dois substratos (solo de Mossoró-RN + esterco bovino curtido (4:1) e solo de Angicos-RN + esterco bovino curtido (4:1)).</p><p align="center"><strong><em>Initial growth of Erythrina velutina in different substrates with organic fertilization </em></strong></p><p><strong>Abstract</strong><strong>: </strong><em>Erythrina velutina</em> is a tree native to the Brazilian northeast, used in landscaping, regeneration of degraded areas and in folk medicine. The objective of this work was to obtain information on <em>Erythrina velutina</em> of two accessions conducted in substrates with organic fertilization. The experiment was conducted in a completely randomized design with split plot with five replications and the experimental unit was represented by 20 seedlings. The first factor was composed of two substrates (sand + cattle manure (4:1) and soil + cattle manure (4:1)) and the second factor consisted of two accessions. Throughout the experiment were five collections of plants for evaluation of growth (28, 56, 84, 112 and 140 days after sowing), with intervals of 28 days. At each sampling date, the following characteristics were analyzed: shoot length, leaf number, basal diameter, leaf area, dry matter (aerial part, branches, leaves, roots, shoots, shoot to root dry weight ratio), leaf area ratio, leaf weight ratio, specific leaf area, absolute growth rate, relative growth rate and net assimilation rate. It can be concluded that accessions of <em>Erythrina velutina</em> grew fast and even when produced in the two substrates consisting of sand and / or soil with added manure.</p><br /><strong></strong>

scholarly journals Seedlings of cassava varieties are responsive to organic fertilization

2019 ◽  
Vol 40 (5Supl1) ◽  
pp. 2151
Author(s):  
Inácio Mucutai Jala ◽  
Caeline Castor da Silva ◽  
Juraci Souza Sampaio Filho ◽  
Eder Jorge Oliveira ◽  
Rafaela Simão Abrahão Nóbrega
Keyword(s):  
Organic Fertilizer ◽  
Dry Mass ◽  
Production Costs ◽  
Organic Fertilizers ◽  
Healthy Plant ◽  
Initial Growth ◽  
Organic Fertilization ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Cassava Varieties

In Brazil, there is already a recommendation for the production of cassava seed-cuttings for the production of seedlings originated from micropropagation, which may be extended for the production of seedlings obtained from cuttings from healthy plant stems, in order to avoid the spread of diseases. Therefore, it is essential to establish adequate cultivation substrates of easy acquisition which may stimulate the growth of seedlings, both to reduce the nursery period, as well as the seedling’s production costs. The objective of this work was to evaluate the effect of organic fertilizers made from bovine and goat manures, and tree pruning residues, to produce seedlings of three cassava varieties. The plots were set in a completely randomized design, with six replicates. The treatments consisted of three cassava genotypes (BRS Formosa, BRS Tapioqueira and BRS Kiriris) and five proportions of organic fertilizer: soil (0: 100, 20:80, 40:60, 60:40 and 80:20). The evaluations were performed 30 and 45 days after planting (DAP). There were isolated effects for shoot dry mass, total dry mass, leaf area and number of leaves. Interactions were verified for root length, chlorophyll a and total chlorophyll index, root dry mass and shoot dry mas/root dry mass ratio 45 DAP. The organic fertilizer stimulated the initial growth of cassava seedlings in the three varieties studied in the proportion of 50% of organic fertilizer and 50% of Latosol. Varieties BRS Formosa and BRS Kiriris showed the highest Dickson Quality Scores. Genotypes reacted efficiently to organic fertilization and can be propagated on these easily acquisition cultivation substrates.

The Benefits of Crop Rotation Including Cereals and Green Manures on Potato Yield and Nitrogen Nutrition and Soil Properties

2017 ◽  
Vol 05 (03) ◽  
Author(s):  
Adrien N Dayegamiye ◽  
Judith Nyiraneza ◽  
Michele Grenier ◽  
Marie Bipfubusa ◽  
Anne Drapeau
Keyword(s):  
Soil Properties ◽  
Crop Rotation ◽  
Nitrogen Nutrition ◽  
Potato Yield ◽  
Green Manures

scholarly journals Determination of pre-harvest interval for dimethoate and quinalphos in selected vegetables

2020 ◽  
Vol 5 (1) ◽  
pp. 42-47
Author(s):  
Md Sultan Ahmed ◽  
Afroza Begum ◽  
Debasish Sarker
Keyword(s):  
European Union ◽  
Gas Chromatography ◽  
Pesticide Residue ◽  
Field Trials ◽  
Recommended Dose ◽  
Maximum Residue Limit ◽  
Hyacinth Bean

The study was undertaken to determine the pre-harvest interval (PHI) for dimethoate and quinalphos in cauliflower, eggplant and hyacinth bean depending on Maximum Residue Limit (MRL) set by European Union. Six supervised field trials were conducted and sprayed with the recommended dose (2 ml/L of water) of each pesticide. Samples were collected at 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 days after spray (DAS). The collected samples were analyzed using Gas Chromatography (GC) with Flame Thermionized Detector (FTD) for the determination of pesticide residue. The quantities of residue were above MRL up to 9 DAS for quinalphos in cauliflower, 7 DAS in hyacinth bean, 8 DAS in eggplant; 11 DAS for dimethoate in cauliflower, 10 DAS in hyacinth bean, and 9 DAS in eggplant. At 11 DAS, no residue was detected from any of the tested samples except dimethoate in cauliflower. The determined PHI for quinalphos was 10 DAS in cauliflower, 8 DAS in hyacinth bean and 9 DAS in eggplant. In case of dimethoate it was 12 DAS in cauliflower, 11 DAS in hyacinth bean and 10 DAS in eggplant. Asian Australas. J. Biosci. Biotechnol. 2020, 5 (1), 42-47

Upland rice intercropped with green manures and its impact on the succession with common bean

2021 ◽  
pp. 1-10
Author(s):  
F. C. Meirelles ◽  
A. G. Cavalcante ◽  
A. R. Gonzaga ◽  
V. A. Filla ◽  
R. Z. Roms ◽  
...  
Keyword(s):  
Common Bean ◽  
Upland Rice ◽  
Cropping Systems ◽  
Pigeon Pea ◽  
Southeastern Brazil ◽  
Green Manures ◽  
Sole Crop ◽  
Bean Yield ◽  
Qualitative Performance ◽  
The Impact

Abstract The aim of this work was to verify the possibility of intercropping rice with green manures, as well as the impact of the dry biomass yield of these intercropping systems on common bean in succession, evaluating the agronomic and qualitative performance of grains from both crops. The experiment was conducted in Southeastern Brazil in the years 2018 and 2019, with succession of rice (spring/summer) and common bean (autumn/winter). The treatments were composed of cropping systems with rice as a sole crop and intercropped with forage peanut, calopo, Crotalaria breviflora, Crotalaria spectabilis, stylo, jack bean and dwarf pigeon pea. No intercropping increased the system's yield compared to sole-crop rice, but intercropping of rice with forage peanut and stylo promoted grain yield and quality similar to those of sole-crop rice. Intercropping with C. breviflora affected the agronomic and qualitative performance of rice. Common bean yield after rice intercropped with dwarf pigeon pea, C. spectabilis and C. breviflora was similar in yield after sole-crop rice, while the other intercrops reduced common bean yield. Common bean grain quality was not affected by the cultivation of rice as sole crop and intercropped with green manures. Although none of the intercropping systems increased yield compared to sole-crop rice (control), it can be concluded that the intercropping of upland rice is viable depending on the green manure species, allowing greater biomass production per area that can help long-term soil conservation and increase the system's yield.

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