Open Access Short Research Article

Agronomic Analysis of Pepper Seedling Submitted to Different Organic Substrates and Trays

Antônio Barbosa da Silva Júnior, Jackson da Silva, Islan Diego Espíndula de Carvalho, Jadson dos Santos Teixeira, Moisés Tiodoso da Silva, Douglas Ferreira dos Santos, Kleyton Danilo da Silva Costa

Journal of Experimental Agriculture International, Page 1-8
DOI: 10.9734/JEAI/2018/40482

Demand for organic products has been increasing due to great acceptance by consumers. However, there are obstacles that make it difficult for the population to access this food. Among them are the inadequate system of cultivation, mainly in relation to the type of substrate and tray. But the most appropriate management will lead to the attainment of better quality organic products. Thus, the objective of this work was to perform an agronomic analysis of pepper seedlings submitted to different organic substrates and trays. The experiment was conducted in a completely randomized design, in a 5 x 2 factorial scheme, where the five substrates evaluated were S1: Bioplant® commercial substrate (control treatment), S2: earthworm humus, S3: soil, S4: 50% soil + 50% earthworm humus and S5: 75% soil + 25% earthworm humus; and the two types of trays were B1: tray with 98 cells and B2: tray with 200 cells. The results show that for the pepper emergence have not presented significant difference among the different substrates used in the experiments. The average mean value was 81.29%. The vegetative growth characteristics of the pepper seedlings studied provide good physical structure of fixation, good porosity, and excellent sources of nutrients. When trays was compared B1 with B2, the following variables diameter of the lap; plant height; root length; dry mass of aerial part; fresh root mass, with tray of 98 cells, the results showed the best results. In addition with trays 200 cells showed lesser pepper seedling production. Substrates based on humus presented good physical and nutritional characteristics, besides being cheaper.


Open Access Original Research Article

Foliar Fertilization Using Liquid Tannery Sludge in Conilon Coffee Seedlings Production

Ramon Amaro de Sales, Franciele Pereira Rossini, Sávio da Silva Berilli, Eduardo Resende Galvão, Tiago Pacheco Mendes, Ana Paula Candido Gabriel Berilli, Rodrigo Amaro de Salles, Ricardo Amaro de Sales, Waylson Zancanella Quartezani, Sílvio de Jesus Freitas

Journal of Experimental Agriculture International, Page 1-8
DOI: 10.9734/JEAI/2018/40201

The waste destination is a concern to industries and, one of the solutions are fertilizers. Therefore, the objective of this study was to evaluate the efficiency liquid tannery sludge has as an alternative of foliar fertilization in Conilon coffee seedlings. The experiment was carried out in a randomized block design with six treatments and eight replications, for 228 days. The control treatment was pure water, and five doses of tannery sludge were applied monthly (6.20, 8.80, 11.47, 14.10, and 17.60 mL of sludge diluted in one liter of water). The biometric and gravimetric growth characteristics were evaluated. Also, the quality index of the seedlings was assessed, and it was observed that fertilization using tannery sludge diluted above 14.23 mL.L-1 began to cause toxic effects on Conilon coffee seedlings. The doses between 8.80 and 14.23 mL.L-1showed potential usefulness for the seedlings production.


Open Access Original Research Article

Use of the Integrated Diagnosis and Recommendation System and Sufficiency Band for Nutritional Status of Conilon Coffee

Abel Souza da Fonseca, Julião Soares de Souza Lima, Samuel de Assis Silva

Journal of Experimental Agriculture International, Page 1-7
DOI: 10.9734/JEAI/2018/40559

Knowing the nutritional conditions of the crop is an important factor to understand its development, indicating the leaf nutrient contents and making possible correlations with the productivity in order to equate the presented variations. The objective of this paper was to diagnose the most limiting nutritional factors to obtaining high yields by Diagnosis And Recommendation Integrated System (DRIS) method and sufficiency ranges for conilon coffee culture. In the coffee crop of the variety Robusta Tropical - Emcaper 8151, located in the county of Cachoeiro de Itapemirim - ES, an irregular mesh was built, with 140 georeferenced points. To obtain the data of the leaf analysis at each point, two pairs of leaves of the lateral branches were collected at the average height of each plant at the 4 cardinal points. In the interpretation of the foliar analysis results by the DRIS method, indexes were calculated for each nutrient of each sample and for the evaluation by the sufficiency range, tabulated values ​​were used. The Diagnosis by DRIS and the Range of sufficiency determined P, Fe, Zn and S as the most limiting nutrients by deficiency. The DRIS method showed greater sensitivity when assessing nutrient deficiencies. Showing lower N limitation and showing difference between Fe and K deficiencies.


Open Access Original Research Article

Agronomic Performance of Different Banana Cultivars in the Capixaba North Region

Ana Paula Cândido Gabriel Berilli, Marcos Viganô, Ramon Amaro de Sales, Sávio da Silva Berilli, Patrícia Soares Furno Fontes, Alexandre Gomes Fontes, Waylson Zancanella Quartezani, Jadier de Oliveira Cunha Junior, Carolina Maria Palácios de Souza, Evandro Chaves de Oliveira, Eduardo Varnier

Journal of Experimental Agriculture International, Page 1-11
DOI: 10.9734/JEAI/2018/40453

There are many banana cultivars developed by genetic breeding programs in Brazil, however, when considering the related aspects, consumer market preference and the effects of the genotype-by-environment interaction, the options may be restricted to a few regions of the country. Therefore, the objective of this study was to evaluate the vegetative and productive development in three cycles of 12 banana genotypes under an irrigation system in the edaphoclimatic conditions of the northwestern region of the state of Espírito Santo, in a randomized block design with four replicates. During three cycles, the following characteristics were evaluated: plant height, number of shoots, number of total and functional leaves, pseudostalk diameter at 5 and 30 cm from the ground, bunch weight, number of fruits per bunch, number of bunch and size and fruit diameter. The results showed that the genotypes with the greatest productive potential were the 'Grand Nine' of the Cavendish group, followed by Thap Maeo Cavendish group. For the ‘Prata’ group, the best genotypes were the ‘Gali’, ‘Pacovan’ and ‘Fhia 18’. The ‘Princesa’ was the most productive in the ‘Maçã’ group, having a cultivation potential in the northern region of Espírito Santo.


Open Access Original Research Article

Influence of Moringa oleifera Leaf Meal on Egg Lipids and Blood Constituents of Laying Hens

L. A. F. Akinola, N. Ovotu

Journal of Experimental Agriculture International, Page 1-9
DOI: 10.9734/JEAI/2018/40432

The influence of Moringa leaf meal on egg lipids and blood constituents of laying birds was examined using 120 ISA Brown layers that were 74 weeks old. The hens were assigned randomly to four groups namely, T1, TT3 and T4.  The design of the experiment was the completely randomized design. Each treatment contained 30 birds which had 10 layers in each of the three replicates. The diet for each treatment contained 0, 0.5, 1.0 and 1.5% of the moringa leaf meal in the layers’ mash which was composed of 2700 Kcal ME /kg,15% crude protein, 5% fat, 10% crude fibre, 3.5% calcium and 0.4% phosphorus. At the end of the experiment, 20 eggs of similar weight were picked from each replicate within 72 hours for the evaluation of the cholesterol, triglyceride, high-density lipoprotein (HDL) and low-density lipoprotein (LDL).  Samples of the blood were obtained from three hens per replicate for haemoglobin (Hb), red blood cell (RBC), packed cell volume (PCV), white blood cell (WBC), Mean corpuscular volume (MVC), Mean corpuscular hemoglobin (MCH) and Mean corpuscular hemoglobin concentration (MCHC) as well as the study of the alanine aminotransferase (ALT), aspartate aminotransferase (AST), total protein, glucose, serum total cholesterol, triglyceride, HDL and LDL. The result revealed that the HDL of the eggs was influenced by the diets such that it was significantly (P < 0.05) greater in T2 and T3, of the fresh eggs and favoured the good cholesterol, HDL of the eggs after seven days (end of the first week) of storage. The Hb, PCV, MCV and MCH of the blood were highly (P < 0.05) influenced by the treatments while the other haematological and serum parameters studied were not affected. In conclusion, the leaf meal had favourable impact on the eggs lipids up to the seventh day (end of the first week) of storage and minimal effect on the blood constituents of the layers at the level of 0.5 – 1.5% of the feed.