|
|
|
| Registros recuperados: 187 | |
|
|
| Gasparin, Ezequiel; Araujo, Maristela Machado; Saldanha, Cleber Witt; Tolfo, Caira Viñas. |
| Growing demand for native tree seedlings will require improvements in quality standards of production processes through the use of more efficient cultivation techniques. This study evaluated the effects of different doses of controlled release fertilizer (CRF) and different container volumes in the production of Parapiptadenia rigida seedlings. We examined the effects of five different concentrations (0, 3, 6, 9 and 12 g L-1 substrate) of CRF (18-5-9 NPK) and three different container volumes (50, 110 and 180 cm3) on seedling height (H) and collar diameter (CD) measured monthly for seven months and then calculated H/CD ratios. After 210 days of growth, the dry masses of the aerial portions, root systems, and total masses were determined, as well as the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.00.00.00-4 native species; Fertilizer; Containers; Nursery. 5.01.03.04-0. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19528 |
| |
|
|
| BAKO, TANKO; MAMAI, EZEKIEL AMBO; ISTIFANUS, AKILA BARDEY. |
| The application of organic fertilizer to the soil is considered as good agricultural practice because it improves the fertility of the soil and plant quality. The aim of the study was to produce compost tea using poultry droppings, cow dungs and water leaf (Talinum triangulare) in a ratio 5:5:1 and evaluate its effects on soil properties, growth and yield of Amaranthus hybridus. The study was carried out in Jalingo, Taraba State, North-Eastern Nigeria in July, 2019. The experimental variables include control (no treatment), 1 kg of compost per 10 L of water compost tea, 1 kg of compost per 20 L of water compost tea, 1 kg of compost per 30 L of water compost tea, 500 kg ha-1solid compost and 500kg ha-1 NPK fertilizer. The treatment combinations were done in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth; Yield; Plants; Organic; Fertilizer. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6941 |
| |
|
| |
|
|
| Shamsabadi, Hossein-Ali Tash; Ahmad, Desa; saberi, Alireza. |
| A field experiment carried out at the research farm, Gorgan University of Agricultural Sciences and Natural Resources, Iran, in 2013. The main objective of the present study was to determine the effect of plant densities, fertilization rates and furrowing on yield and some morphological characteristics of soybean. The other objective of this study was, if pod packaging phenomena did not happen; can be used from morphologic advantages of this plant as replacement strategy and as foraged soybean or not. Therefore, an experimental design laid out in a randomized complete block design arranged in a split plot factorial with three replications. The main plots attributed to planting density at three levels (100000, 150000 and 200000 bush ha-1). The sub plots... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilizer; Furrower; Soybean (Glycin Max); Seeding rate.. |
| Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4137 |
| |
|
|
| Regiane Cristina Marcato,Sita; Reissmann,Carlos Bruno; Marques,Renato; Oliveira,Edilson de; Taffarel,Angela Daniela. |
| This study was conducted to evaluate the effect of polymer used with different nitrogen and potassium sources on the growth and nutrition of chrysanthemum (Dendranthema grandiforum, var. "Virginal") and on chemical characteristics of substrate. Two substrates were evaluated: 1) composite with 50 % organic soil, 45 % sand, and 5 % composted tobacco; 2) plow layer soil (0-20 cm depth; red oxisol typical dystrophic). The experimental design was a factorial (4x2x2) and included four polymer rates (0, 1, 2, and 4 g kg-1of substrate), two nitrogen ((NH4)2SO4 and (H2N)2CO), and two potassium (KCl and K2SO4) sources. Dry biomass, flower number, and concentration of K, Ca, and Mg were evaluated. Inverse relationships between polymer rates and plant biomass,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hydrogel; Polyacrylamide; Chrysanthemum; Fertilizer; Macronutrients. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000300002 |
| |
|
|
| Alves,Luciano; Oliveira,Vetúria L.; Silva Filho,Germano N.. |
| The utilization of rocks as fertilizers is limited by their low solubility. However, solubilization may be achieved by some micro-organisms, such as ectomycorrhizal fungi (ECMf). The aim of this study was to evaluate the potential of seven isolates of ECMf to solubilize two rocks, alkaline breccia and granite, and to liberate potassium and phosphorus for Eucalyptus dunnii seedlings under greenhouse conditions. Fungal inoculants were produced in a peat-vermiculite-liquid medium mixture and added to the planting substrate at 10 %. Rocks were ground up and added at 0.500 mg and 16.0 mg per plant, as a source of phosphorus and potassium, respectively. Other nutrients were added and E. dunnii seeds were sown. Control plants, non-inoculated, were fertilized with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ectomycorrhizas; Inoculant; Ground rock; Fertilizer; Eucalyptus dunnii. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300018 |
| |
|
|
| Castillo,Hugo; Hernández,Adriana; Dominguez,David; Ojeda,Damaris. |
| The efficiency of composting processes with and without the addition of Californian red worms (Eisenia foetida) was evaluated, using manure of dairy cows to generate organic fertilizer. Several parameters were assessed as physio-chemical indicators of maturity, such as temperature, pH, C/N ratio, phytotoxicity and macro and micronutrients at 25 and 54 ws (mature and stored products, respectively). A linear model was used in the statistical analysis, with four replicates that included as fixed effects, the composting systems and time. At 25 wk, both systems reduced the C/N ratio to values of 15.5 in vermicompost and 17.1 in semi-compost. The content of total N, N-NO3, Ca and some micronutrients also increased. K and Na concentrations were higher in the... |
| Tipo: Journal article |
Palavras-chave: Fertilizer; Organic; Maturation; Stability. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000300014 |
| |
|
|
| Yaldiz,Gulsum; Yildirim,Arzu Birinci; Arici,Yeliz Kasko; Camlica,Mahmut. |
| G. Yaldiz, A. B. Yildirim, Y. K. Arici, and M. Camlica. 2016. Yield, yield features, phytochemical composition, antioxidant and antibacterial activities of Abutilon indicum cultivated under different fertilizers. Cien. Inv. Agr. 43(3):464-475. Abutilon indicum (Link) Sweet is an important medicinal plant that has been used in traditional medicine for centuries, and it is one ofthe novel crops being used in the pharmaceutical industry. Agricultural practices that produce high drug yield and desired secondary metabolites are in high demand by pharmaceutical-related industries; therefore, the aim of this study was to determine the leaf and seed yield, crude oil yield, crude oil composition, total phenolic content, and the antioxidant and antibacterial... |
| Tipo: Journal article |
Palavras-chave: Biological activity; CAN; Crude oil; Fertilizer; NPK; Yield; Aceite crudo; Actividad biológica; CAN; Fertilizante; NPK; Rendimiento. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000300012 |
| |
|
|
| Miranda,Karina Rodrigues de; Dubeux Junior,José Carlos Batista; Mello,Alexandre Carneiro Leão de; Silva,Maria da Conceição; Santos,Mércia Virginia Ferreira dos; Santos,Djalma Cordeiro dos. |
| ABSTRACT: The objective of this study was to evaluate the productive potential and mineral composition of the forage cactus IPA-Sertânia (Nopalea cochenillifera Salm Dyck). This species was analyzed both in monoculture and intercropped with leucaena [Leucaena leucocephala (Lam.) De Wit.] and gliricidia [Gliricidia sepium (Jacq. Steud.], and was assessed with different sources of manure (cattle, sheep, goat, and broiler litter) serving as fertilizer. The experiment was conducted at the Experimental Station of the Instituto Agronômico de Pernambuco in Caruaru, PE, Brazil. Treatments were allocated in a split-plot arrangement in a randomized complete block design, with four replications. Main plots consisted of cropping systems, while the split-plots were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilizer; Intercropping; Minerals; Nopalea; Production. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100654 |
| |
|
| |
|
|
| Benteo,Gleiciane de Lima; Verzignassi,Jaqueline Rosemeire; Fernandes,Celso Dornelas; Valle,Cacilda Borges do; Macedo,Manuel Cláudio Motta; Libório,Cláudia Barrios de; Monteiro,Lenise Castilho. |
| ABSTRACT: This study aimed to evaluate aspects of reproductive phenology, yield components and seed quality of the B4 genotype of Brachiaria brizantha in function of nitrogen doses applied at pre-flowering. The experiment was carried out at Embrapa Beef Cattle, in a randomized block design, with seeding density of 2.59kg SPV ha-1 in the first year, in free growth plants. Urea was applied at pre-flowering at doses of 0, 25, 50, 75, 100, 125 and 150kg ha-1. The reproductive cycle of the plant lasts 225 days, with late flowering. N doses influenced the following characteristics: number of fully expanded inflorescences, percentage of dry matter, dry biomass, number of spikelets per raceme, seed yield, weight of a thousand seeds, germination, germination speed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilizer; Tropical forage; Seed quality. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901566 |
| |
|
|
| Díaz José, Julio. |
| En 2007, el Gobierno del Estado de Guerrero apoyó a cerca de 300,692 productores de maíz con el subsidio de fertilizantes y asesoría técnica, con el objeto de mejorar la producción de granos básicos. El presente estudio se realizó para evaluar los principales resultados en la instrumentación del programa de fertilizantes en su ejercicio 2007. Se diseñó y aplicó una encuesta para recabar información sobre los beneficiarios del programa, los alcances que se tuvieron, la percepción de los beneficiarios acerca del programa y las características del sistema de producción de maíz en el estado. Los resultados encontrados, demuestran que los objetivos de incrementar el rendimiento de la producción de maíz en el estado no han sido suficientes, ya que sólo se logró... |
| Tipo: Tesis |
Palavras-chave: Fertilizante; Agricultura sustentable; Guerrero; Maestría; Desarrollo Rural; Fertilizer; Sustainable Agriculture. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1635 |
| |
|
|
| Flueck, Werner T.; National Council for Scientific and Technical Research (CONICET), Argentina; Institute of Natural Resources Analysis, Universidad Atlantida Argentina; Swiss Tropical Institute, University of Basel; wtf@deerlab.org. |
| The exploitation of natural resources such as forests leads to sustainable forest management (SFM). The key question is how to define and parametrize “sustainable use.” Promoting forest use that conserves spatial characteristics of forest landscapes and the structure and composition of forest stands was proposed as a way of maintaining elements of biodiversity such as species richness and genetic variation. However, to establish the parameter space for sustainable forest use, it is essential to consider the nutrient requirements of forest systems, that is, plants and animals, the need for fertilizer application, and the effects on biogeochemical cycles, a cornerstone of biological evolution and, thus, biodiversity. The use of forest... |
| Tipo: Peer-Reviewed Response |
Palavras-chave: Biogeochemical cycle; Fertilizer; Macronutrients; Micronutrients; Phosphorus; Selenium; Sustainable forest management. |
| Ano: 2009 |
|
| |
|
|
| Carneiro,Franciele M.; Furlani,Carlos E. A.; Gírio,Lucas A. da S.; Silva,Rouverson P. da; Malheiros,Euclides B.. |
| ABSTRACT: A new concept of fertilizer machine is under development and shows as differential individually fertilizer application, that is sources of N, P and K are applied separately for the purpose of improving the distribution efficiency of the quantities applied. The aim was to compare the quality of the individualized mechanized distribution of N, P and K in combined operations with and without herbicide application, as well as to evaluate the fertilizer application on each side of the fertilizer machine. The experiment was carried out on Cascavel farm, in the municipality of MatãoSP. The experimental design was established according to the criteria of quality control, and variables monitoring carried out in the place during fertilization operation,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Statistical process control; Fertilizer; Operational quality; Fertilizer machine. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000400676 |
| |
|
|
| Hoehne,Lucélia; Altmayer,Taciélen; Martini,Maira C; Finatto,Jordana; Brietzke,Débora T; Kuhn,Daniel; Schweizer,Ytan A; Vettorello,Gabriela; Cordeiro,Sabrina G; Ethur,Eduardo M; Freitas,Elisete M de; Severo Filho,Wolmar A. |
| ABSTRACT This study aims to verify the most suitable substrate formulation based on proportions of earthworm humus and soil to improve the quality of organic strawberries. Vermicomposting generated humus and strawberry seedlings were planted in different humus:soil ratios: (0:100; 20:80; 40:60; 60:40; 80:20 and 100:0, respectively). The proportional conditions were characterized after planting and after 60-day cultivation, plants were harvested, and chemical characterizations of the soil and plants were made. We verified that with an increase of humus content in the substrate, an increase in values of N, P, K, pH and organic matter in soil and dry and fresh mass in shoot area of the plants were noticed. In relation to fruits, pH, humidity and sodium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragaria x ananassa; Húmus; Fertilizer; Nutrients. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100101 |
| |
|
|
| Silva,Giovani O; Bortoletto,Antonio C; Carvalho,Agnaldo DF; Pereira,Arione S. |
| ABSTRACT Many potato producers for fry industry changed from the use of potassium chloride to potassium sulfate, as there is a concept that the use of this source improves tuber quality. The aim of this work was to evaluate the effect of these two potassium sources on yield, specific gravity and chip color of potato chipping cultivars. The experiment was carried out on a Dystrophic Red Latosol, in Canoinhas, Brazil, in spring season 2016. Treatments consisted of two potato cultivars, BRSIPR Bel and Atlantic, and two sources of potassium, chloride and sulfate, applied in the furrow at the planting time, in rates based on soil analysis. Experimental design was a randomized complete block in a split-plot arrangement with four replications. Main plots were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Mineral nutrition; Fertilizer; BRSIPR Bel; Atlantic. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300395 |
| |
|
| |
| Registros recuperados: 187 | |
|
|
|
