scholarly journals GROWTH AND NUTRITION OF Paratecoma peroba SEEDLINGS IN DIFFERENT TUBE VOLUMES AND CONTROLLED-RELEASE FERTILIZERS

FLORESTA ◽  
2020 ◽  
Vol 50 (3) ◽  
pp. 1613
Author(s):  
Thais Arão Feletti ◽  
Emanuel França Araújo ◽  
Elzimar De Oliveira Gonçalves ◽  
Thamara Arão Feletti ◽  
Aline Ramalho Dos Santos ◽  
...  
Keyword(s):  
Controlled Release ◽  
Nutrient Balance ◽  
Mineral Fertilizer ◽  
Integrated System ◽  
Native Forest ◽  
Forest Species ◽  
Randomized Design ◽  
Growth And Nutrition ◽  
Nutritional Balance ◽  
Balance Index

Paratecoma peroba is a native forest species of great economic and ecological interest, currently at risk of extinction from selective and illegal exploitation; however, there are no established parameters for the production of seedlings of this species. The objective of this study was to analyze the growth and nutritional balance of P. peroba seedlings grown in polypropylene tubes of different sizes with variable doses of controlled-release fertilizer (CRF). Three volumes of tubes (120, 180, and 280 cm3), four CRF doses (0, 2.5, 5, and 7.5 kg m-3), and a conventional mineral fertilizer (CF) were tested as indicated in the literature for native forest species: arranged in a completely randomized design in a 3 × 5 factorial scheme, with four replicates composed of 16 seedlings. After 180 days, the percentage of survival, growth variables, indices of the diagnosis and recommendation integrated system, and the average nutrient balance index of the seedlings were analyzed. Based on the total dry matter and the mean nutritional balance index, the combination of a 280 cm³ tube with a 7.5 kg m-3 CRF dose was the most effective in the production of P. peroba seedlings.

scholarly journals Resposta de Handroanthus heptaphyllus Mattos em diferentes volumes de substrato e adubação de base.

FLORESTA ◽  
2020 ◽  
Vol 50 (4) ◽  
pp. 1770
Author(s):  
Thaise Da Silva TONETTO ◽  
Maristela Machado Araujo ◽  
Álvaro Luís Pasquetti Berghetti ◽  
Márcio Carlos Navroski
Keyword(s):  
Controlled Release ◽  
Quality Index ◽  
Lower Cost ◽  
Dry Mass ◽  
High Dose ◽  
Native Forest ◽  
Forest Species ◽  
Definition Of ◽  
Appropriate Practices ◽  
Dickson Quality Index

Handroanthus heptaphyllus (Martius) Mattos response in different volumes of substrate and base fertilization. The native forest species require the adoption of appropriate practices in the nursery, such as the definition of the container volume and base fertilizer, to develop seedlings at lower cost. Thus, this study aimed to verify the performance of Handroanthus heptaphyllus seedlings grown in nurseries in different sizes of containers and different dosage of controlled release fertilizer (CRF). There was interaction between the volume of container and the fertilization for the height (H), stem diameter (SD), and H/SD relation. The shoot dry mass variable (SDM), root dry mass (RDM), total dry mass (TDM), SDM/RDM relation, Dickson quality index (DCI) and leaf area (LA) were influenced only by the base fertilizer. The highest values for these variables were, respectively, 15.68 cm; 6.55 mm, 2.58 cm mm-1; 2.05 g; 2.03 g; 3.84 g; 1.46; 1.15 and 246.97 cm². The H. heptaphyllus species is nutritionally demanding, positively responding to the high dose of CRF. Seedlings of H. heptaphyllus produced in tubes of 180 cm³ with 7.0 g L-1 of CRF present adequate growth.

scholarly journals Determining Nutrient Diagnostic Norms for Greenhouse Roses

HortScience ◽  
2013 ◽  
Vol 48 (11) ◽  
pp. 1403-1410 ◽  
Author(s):  
Johnn Jairo Franco Hermida ◽  
Martha Cecilia Henao Toro ◽  
Miguel Guzmán ◽  
Raul I. Cabrera
Keyword(s):  
Environmental Conditions ◽  
Plant Tissue ◽  
Nutrient Balance ◽  
Cropping System ◽  
Nutrient Status ◽  
Integrated System ◽  
Labor Inputs ◽  
Large Water ◽  
Nutritional Balance

Greenhouse-grown cut roses are an economically important and intensive horticultural cropping system receiving large water, fertilizer, agrochemicals, and labor inputs. This study was conducted to establish and validate norms for the nutrient diagnosis techniques Diagnosis and Recommendation Integrated System (DRIS) and Compositional Nutrient Diagnosis (CND) for cut roses (Rosa spp. L.) growing on soil beds within greenhouses in the Bogotá Plateau, Colombia. Information used in this study was obtained from a database of plant tissue and soil analyses, including 1914 foliar analyses of different rose cultivars grafted on the rootstock R. × ‘Natal Briar’. Theoretical validation proved that the generated norms are suitable for crop nutrient status diagnosis, allowing for the correlation of nutrient balance indices with crop flower productivities across a range of cultivars and plant ages. Analysis of the results provided by both DRIS and CND procedures indicated that element relations associated with nitrogen, phosphorous, magnesium, manganese, and boron had a higher influence on the nutritional balance and productivity of roses growing under the conditions of the studied region. In addition, it was preliminarily determined that the use of these diagnostic norms could be extended to rose crops growing under other, and different, rootstocks, production and environmental conditions, and management.

scholarly journals Testing and validation of methods for the diagnosis and recomendation integrated system for Signal grass

2005 ◽  
Vol 62 (6) ◽  
pp. 520-527 ◽  
Author(s):  
Cristiane Prezotto Silveira ◽  
Gilmar Ribeiro Nachtigall ◽  
Francisco Antonio Monteiro
Keyword(s):  
Nutrient Solution ◽  
Correlation Coefficients ◽  
Integrated System ◽  
Brachiaria Decumbens ◽  
Leaf Analysis ◽  
R Value ◽  
Signal Grass ◽  
Interpretation Method ◽  
Nutritional Balance ◽  
Balance Index

The Diagnosis and Recommendation Integrated System (DRIS) allows the interpretation of results of leaf analysis through relationships among nutrients, instead of the absolute and isolated concentration of each one, as it is used by the criterion of sufficiency range. The objective was to evaluate three procedures of calculation of DRIS indices, and to verify the efficiency of DRIS as interpretation method for the results of Brachiaria decumbens (Signal grass). The study was developed with the results of six experiments carried out in a greenhouse at Piracicaba, SP, with nutrient solution. Concentrations of N, P, K, Ca, Mg, S, Cu, Fe, Mn, and Zn were used in the samples of recently expanded leaf laminae of the grass. The validation of the DRIS method used results from an experiment with nitrogen and sulfur rates applied to the same grass from the Mundo Novo farm, Brotas, SP. DRIS indices were calculated according to two criteria to choose the ratio order of nutrients (F value and R value) and three ways to calculate the nutrient functions (methods of Beaufils, Jones, and Elwali & Gascho). Nutritional Balance Index (NBI), calculated according to the generated norms, presented negative and significant correlation coefficients with the productivity in the combinations of methods tested and DRIS methods proposed by Beaufils, Jones and Elwali & Gascho were efficient in detecting concentrations that show nutrients deficiency or excess.

Diagnosis and recommendation integrated system and nutritional balance index reveal Cd-induced nutritional disorders in Panicum maximum assayed for Cd phytoextraction

2020 ◽  
Vol 24 (4) ◽  
pp. 265-282
Author(s):  
Flávio Henrique Silveira Rabêlo ◽  
José Lavres ◽  
Thiago Gentil Ramires ◽  
Luís Reynaldo Ferracciú Alleoni
Keyword(s):  
Integrated System ◽  
Panicum Maximum ◽  
Nutritional Balance ◽  
Balance Index

scholarly journals Spatial variability in nutritional status of arabic coffee based on dris index

Revista CERES ◽  
2011 ◽  
Vol 58 (2) ◽  
pp. 256-261 ◽  
Author(s):  
Samuel de Assis Silva ◽  
Julião Soares de Souza Lima ◽  
Daniel Marçal de Queiroz
Keyword(s):  
Nutritional Status ◽  
Spatial Variability ◽  
Precision Agriculture ◽  
Nutrient Balance ◽  
Cost Effective ◽  
Integrated System ◽  
Combined Use ◽  
Fertilizer Recommendations ◽  
The Mean ◽  
Nutritional Balance

The combined use of precision agriculture and the Diagnosis and Recommendation Integrated System (DRIS) allows the spatial monitoring of coffee nutrient balance to provide more balanced and cost-effective fertilizer recommendations. The objective of this work was to evaluate the spatial variability in the nutritional status of two coffee varieties using the Mean Nutritional Balance Index (NBIm) and its relationship with their respective yields. The experiment was conducted in eastern Minas Gerais in two areas, one planted with variety Catucaí and another with variety Catuaí. The NBIm of the two varieties and their yields were analyzed through geostatistics and, based on the models and parameters of the variograms, were interpolated to obtain their spatial distribution in the studied areas. Variety Catucai, with grater spatial variability, was more nutritional unbalanced than variety Catuai, and consequently produced lower yields. Excess of Fe and Mn makes these elements limiting yield factors.

scholarly journals Assessment of Nutrient Balance in Sugarcane Using DRIS and CND Methods

2018 ◽  
Vol 10 (9) ◽  
pp. 164 ◽  
Author(s):  
Leila C. S. Calheiros ◽  
Fernando J. Freire ◽  
Gilson M. Filho ◽  
Emídio C. A. Oliveira ◽  
Adriano B. Moura ◽  
...  
Keyword(s):  
Nutrient Balance ◽  
Agricultural Productivity ◽  
Integrated System ◽  
Nutritional Factors ◽  
Nutrient Contents ◽  
Sugarcane Production ◽  
High Productivity ◽  
Nutritional Monitoring ◽  
Balance Index

Many methods of nutritional diagnosis present discordant reports. It is necessary to study how these diagnoses relate to agricultural productivity and nutrient balance for a more efficient nutritional monitoring of the crops. This study had two objectives: (1) evaluate and compare Diagnosis and Recommendation Integrated System (DRIS) and Compositional Nutrient Diagnosis (CND) methods for nutritional diagnosis of sugarcane cultivated in the Northeast of Brazil; (2) establish standards, identify and hierarchize nutritional limitations. The database consisted of 183 samples, in which 31 were in areas with high productivity (³ 80 Mg ha-1) and 152 of areas with low productivity (< 80 Mg ha-1). Sugarcane leaves were collected and contents of N, P, K, Ca, Mg, S, Fe, Zn, Cu, Mn and B were determined. The DRIS indexes were calculated by methods DRIS-Beaufils, DRIS-Jones, DRIS-Elwali and Gascho, M-DRIS Beaufils, M-DRIS Jones, and the indexes CND too were calculated. The DRIS-Beaufils, DRIS-Jones, M-DRIS Beaufils and M-DRIS Jones methods tended to agree on the nutritional diagnosis of sugarcane. The nutritional diagnosis of the CND method interpreted by the Potencial Fertilization Response (PFR) was different from the DRIS methods for N and Mn nutrients. The M-DRIS Beaufils and M-DRIS Jones methods showed a higher correlation with nutrient contents. However, there was no significant correlation between agricultural productivity and nutrient balance index mean (NBIm), suggesting that other factors influenced sugarcane production more than nutritional factors. The nutritional diagnosis methods identified excessive fertilization with N and limitations of Ca, Mg, K, S, Mn, Cu, Zn and B in sugarcane in the Northeast of Brazil.

scholarly journals Nutritional balance and its relationship to yield in a coffee field: Inferences from geospatial analysis

2020 ◽  
Vol 24 (12) ◽  
pp. 834-839
Author(s):  
Marcelo B. da Silva ◽  
Fábio L. Partelli ◽  
Ivoney Gontijo ◽  
Marcellus M. Caldas
Keyword(s):  
Nutrient Balance ◽  
Coffea Canephora ◽  
Integrated System ◽  
Plant Production ◽  
Mineral Nutrient ◽  
Limiting Factor ◽  
Yield Data ◽  
Coffee Yield ◽  
The Relationship ◽  
Nutritional Balance

ABSTRACT Information obtained from studies of spatial variability and the Diagnosis and Recommendation Integrated System (DRIS) may contribute to understanding better the relationship between mineral nutrient balance and factors that limit the crop yield. This study shows that nutritionally balanced plants may be associated with low productivity in Conilon coffee fields. The study was carried out on a highly productive Conilon coffee (Coffea canephora) field, in São Mateus, state of Espírito Santo, Brazil. A sample grid was established with 100 points, each point linked to one plant. Twenty pairs of leaves from each plant were collected from productive branches to create a sample for nutritional analysis. The rust incidence (Hemileia vastatrix), the presence of the coffee borer (Hypothenemus hampei), and the physical characteristics of the soil were evaluated in each sampled plant. DRIS and Nutrient Balance Index (NBI) were calculated, and from the yield data, they were characterized using descriptive statistics. Maps were created showing the spatial distribution of the NBI, yield, total sand, and incidence of rust and coffee borer. It was verified the low relationship between nutritional balance and yield in Conilon coffee, suggesting that non-nutritional factors also influenced plant production. In areas of the maps with high NBI, the plant’s nutritional balance was the main limiting factor of production, since most plants in this area produced less than the average productivity of the plants sampled. The use of a geostatistics tool combined with the NBI resulted in better understanding of the relationship between nutritional and non-nutritional variables on the Conilon coffee yield.

scholarly journals Crescimento e balanço nutricional de mudas de Enterolobium contortsiliquum com aplicação de substratos orgânicos e água residuária

2016 ◽  
Vol 36 (86) ◽  
pp. 169 ◽  
Author(s):  
Emanuel França Araújo ◽  
Adriana Miranda de Santana Arauco ◽  
Julian Junio de Jesús Lacerda ◽  
Rafael Felippe Ratke ◽  
João Carlos Medeiros
Keyword(s):  
Nutrient Balance ◽  
Primary Source ◽  
Swine Wastewater ◽  
Organic Substrates ◽  
Swine Farm ◽  
Lower Growth ◽  
Randomized Design ◽  
Morphological Variables ◽  
Completely Randomized Design ◽  
Nutritional Balance

Diante da geração acentuada de resíduos orgânicos sólidos e efluentes, a utilização desses materiais como fonte primária de nutrientes consiste em uma importante prática de gestão ambiental, sobretudo na produção de mudas com ênfase à recuperação de áreas degradadas. Objetivou-se com este trabalho avaliar o crescimento e o balanço nutricional de mudas de tamboril (Enterolobium contortsiliquum (Vell.) Morong) cultivadas em substratos com diferentes formulações e proporções de resíduos orgânicos irrigados com água residuária. Foram testados cinco proporções de composto orgânico e solo: 0:100; 20:80; 40:60; 60:40 e 80:20 v/v, e duas qualidades de água de irrigação: água de abastecimento e água residuária de suinocultura, dispostos em delineamento inteiramente casualizado em esquema fatorial, 5 x 2, com quatro repetições. Aos 90 dias, foram avaliadas as variáveis morfológicas, índices do sistema integrado de diagnose e recomendação e do balanço nutricional médio das mudas. Constatou-se que o resíduo orgânico contribui para o crescimento e o equilíbrio nutricional das mudas. A proporção 80:20 mostrou-se a mais indicada à produção de mudas de tamboril. O crescimento e balanço nutricional das mudas foram inferiores nos tratamentos que receberam irrigação com água residuária de suinocultura.Growth and nutrient balance of Enterolobium contortsiliquum seedlings with addition of organic substrates and wastewaterGiven the strong generation of solid organic waste and wastewater, the use of these materials as a primary source of nutrients is an important practice in environmental management, especially in the production of seedlings with emphasis on degraded areas. The objective of this study was to evaluate growth and nutrient balance of “tamboril” (Enterolobium contortsiliquum (Vell.) Morong) seedlings grown on substrates with different formulations proportions of organic matter irrigated with wastewater. It was tested five ratios of organic composts and soil: 0:100; 20:80; 40:60; 60:40 and 80:20 v/v. Two procedences of irrigation water was tested: water supply and wastewater from swine farming, arranged in a completely randomized design in a factorial scheme 5 x 2, with four replications. At 90 days, we evaluate seedlings morphological variables, the integrate diagnosis recommendation index and the nutrient balance index. The organic residue contributes to seedlings growth and nutritional balance. The proportion 80:20 proved to be the most suitable for “tamboril” seedlings production. Seedlings presented lower growth and nutritional balance when irrigate with swine farm wastewater.Index terms: “Bagana de carnaúba”; Bed aviary; Swine wastewater

scholarly journals Diagnosis and recommendation integrated system (DRIS) of tomato in greenhouse

2014 ◽  
Vol 32 (2) ◽  
pp. 200-204 ◽  
Author(s):  
Cesar L Scucuglia ◽  
José E Creste
Keyword(s):  
Standard Deviation ◽  
Plant Nutrition ◽  
Nutrient Balance ◽  
Integrated System ◽  
Nutritional Content ◽  
Average Standard Deviation ◽  
Tomato Plants ◽  
Fertilizer Recommendation ◽  
Tomato Yield ◽  
Balance Index

Plant nutrition is one of the most important factors for successful cultivation of tomatoes, especially in the greenhouse, and Diagnosis and Recommendation Integrated System (DRIS) is an alternative for fertilizer recommendation. This study aimed to establish DRIS norms for tomato plants growing in greenhouse located at Norte Pioneiro do Paraná region (Paraná State, Brazil). Chemical analysis of nutrients on leaves (N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn) of hybrid tomatoes (Colibri, Pizzadoro, Debora Max and Granadero), and respective yields of 61 growing areas in greenhouses (24.4 ha) were used. Samples were collected during April to December 2010, in five cities. Five levels of tomato yield (6, 7, 8, 9, and 10 kg plant-1) were used for establishing a database with all binary relationships among all the nutrients studied in all samples. The average, standard deviation and variance for each concentration of nutrient were calculated and it was done for relationship among nutrients, also, in each sub-population. We used 55 relationships which showed the highest ratio in the variance between sub-populations. The nutritional content of each nutrient and the nutrient balance index (IBN) of each production level were calculated. The best correlation between IBN and tomato yield was obtained with 8 kg plant-1 of tomato and this value was defined as an index to be used for DRIS. The nutritional diagnosis carried out in crops with yields below 6 kg plant-1 showed relative deficiencies of K and B and relative excess of Mg.

scholarly journals Understanding nutrient imbalances in maize (Zea mays L.) using the diagnosis and recommendation integrated system (DRIS) approach in the Maize belt of Nigeria

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kamaluddin T. Aliyu ◽  
Jeroen Huising ◽  
Alpha Y. Kamara ◽  
Jibrin M. Jibrin ◽  
Ibrahim B. Mohammed ◽  
...  
Keyword(s):  
Nutrient Use Efficiency ◽  
Nutrient Balance ◽  
Maize Yield ◽  
Integrated System ◽  
Soil Conditions ◽  
Yield Increase ◽  
Nutrient Imbalances ◽  
Nutrient Use ◽  
Result Show ◽  
Use Efficiency

AbstractLow nutrient use efficiency in maize as a result of imbalanced nutrition has been reported to drastically reduce yield. We implemented a nutrient omission experiment to assess the effect of nutrient application on maize yield and nutritional balance. Maize ear leaves were analyzed for nutrients, to identify nutrient balance status using the Diagnostic and Recommendation Integrated System (DRIS) approach. Results indicated that omission of N or P resulted in highly imbalanced DRIS indices respectively, and significantly lower grain yield. A strong inverse relationship between K ear leaf content with DRIS index suggests that K application negatively increases K imbalance in many situations. Imbalances of Mg, Ca and Cu were more associated with higher yielding treatments. A Which-Won-Where result show that nutrient imbalances in the diagnosis were systematically frequent when N was omitted. All the diagnosed nutrients were imbalanced even under the highest yielding NPKZn treatment; indicating further opportunity for yield increase with more balanced nutrition. Balanced nutrition of maize in the maize belt of Nigeria should target application of varying rates of N, P, K, Mg, S and Zn, depending on the soil conditions. But, because of complexities of nutrient interactions during uptake, it is hardly possible to realize a balanced nutrition. However, differentiating the application of antagonistic nutrients into foliar or soil-based methods is recommended for a more balanced maize nutrition.

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