Consulta: subjectFacets:"Mineral fertilization"
Registros recuperados: 11
Data/hora: 13/06/2024 01:33:25

SOIL MESO- AND MACROFAUNA IN TWO SOYBEAN CROPS AFTER SWINE WASTEWATER APPLICATION
Provedor de dados: 70
Autores: Maciel,Ana P. C.; Sampaio,Silvio C.; Remor,Marcelo B.; Rosa,Danielle M.; Reis,Ralpho R. Dos.
ABSTRACT Hog raising generates a large amount of residues that is commonly discarded into the soil as fertilizer even with environmental risks. In this context, the aim of this study was to assess the application effects of different doses of swine wastewater (SW) associated with mineral fertilization on the abundance and diversity of organisms of soil meso- and macrofauna in two soybean crops. Treatments consisted of four doses (0, 100, 200, and 300 m3 ha−1) of SW with or without mineral fertilization in two soybean crop, totaling 24 experimental units. Soil meso- and macrofauna were sampled using pitfall traps installed at each plot. Samples were sorted and the organisms were separated and identified. The highest abundances were found between groups of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mineral fertilization; Swine wastewater; Soil fauna.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300556

Potassium chloride fertilization of potatoes: nutrient uptake rate and tuber yield of cultivars Ágata and Atlantic
Provedor de dados: 75
Autores: Luz,José Magno Q; Oliveira,Roberta C; Lana,Regina Maria Q; Silva,João Ricardo R; Rebouças,Tiyoko Nair H.
ABSTRACT Potassium (K) is the nutrient taken up in the greatest quantity by the potato plant. Obtaining information about the relationship between tuber yield and K application rate allows improvements in fertilizer use efficiency. We aimed to evaluate the variation in potassium fertilizer doses in uptake rate of other nutrients and in potato tuber yield. The experiments were carried out in Unaí-MG testing cultivars Ágata and Atlantic and in Mucugê-BA evaluating cultivar Ágata. The experimental design used was randomized blocks. We studied the rates of 0; 70; 110; 220, and 450 kg ha-1 K2O. The increase in K rate reduced the levels of S, Ca, Mg and B in Atlantic-Unaí, Ca, Mg, Zn and B in Ágata-Unaí and S, Fe and B in Ágata-Mucugê. The cultivar Atlantic-Unaí...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Mineral fertilization; Plant nutrition.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400400

Tuber yield and economic result of ‘Atlantic’ potato in response to NPK fertilizer formulas
Provedor de dados: 75
Autores: Yagi,Renato; Soratto,Rogério P; Nazareno,Nilceu RX de; Silva,Henrique L da; Dzierwa,Alexandre de C.
ABSTRACT The usual application of high 4-14-8 NPK fertilizer rates in the potato planting furrows, independently of the soil fertility or nutritional cultivar requirements, has become a paradigm in Brazil. However, the 4-14-8 NPK formula does not always meet the crop needs, and can unbalance the availability of nutrients in the soil. The objective of this study was to evaluate the tuber yield and economic results of ‘Atlantic’ potato as affected by rates of 4-14-8 and 6-30-6 NPK formulas applied in the planting furrows. The rates of both NPK formulas were calculated to reach P2O5 rates of 210, 420, and 630 kg ha-1. At each P2O5 rate, the 6-30-6 formula resulted in less 30% N and 65% K2O in the planting furrow compared to 4-14-8 formula. A randomized...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Mineral fertilization; Fertilizer source; Profitability.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000400379

Lima beans production and economic revenue as function of organic and mineral fertilization
Provedor de dados: 75
Autores: Alves,Adriana U; Oliveira,Ademar P de; Alves,Anarlete U; Dornelas,Carina SM; Alves,Edna U; Cardoso,Edson A; Oliveira,Arnaldo Nonato P de; Cruz,Iordan da S.
Lima beans (Phaseolus lunatus L.) are alternative food and income sources for the population of Northeastern Brazil. In this region, lima beans are consumed either as green or dry grains. However, low yields have been observed, a challenge that could be overcome by adequate organic and mineral fertilization. This work intended to assess lima beans yield, cultivar Raio de Sol, as affected by doses of cattle manure in the presence and absence of mineral NPK fertilization. The experiment was carried out at the Federal University of Paraíba, Brazil, from September, 2004 to May, 2005. The experimental design was of randomized blocks, with four replications, 40-plant plots, spaces of 1.00 x 0.50 between and within rows, respectively. Treatments were displayed in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus lunatus L.; Organic fertilization; Mineral fertilization; Yield.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362008000200024

Adubação mineral da videira.
Provedor de dados: 14
Autores: ALBUQUERQUE, T. C. S. de.
A fertilização dos vinhedos é um dos mais significativos componentes do custo de produção da cultura da videira e exerce grande influência na produtividade e qualidade da uva e dos vinhos que dela se originam (Giovannini, 1999). No entanto, a correção do solo e a adubação, mesmo sendo práticas generalizadas entre os produtores, ainda são feitas, em muitos casos, de forma empírica, sem atentar para as reais necessidades em termos de solo e cultura. Mas, para se ter sucesso em qualquer exploração agrícola é necessário otimizar os fatores de produção, levando-se em conta que a produção de uvas de qualidade é decorrente, em grande parte, da nutrição equilibrada das videiras, sendo o equilíbrio atingido quando as plantas estão supridas com quantidades de...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Videira; Adubação mineral; Mineral fertilization; Vine.; Uva; Fertilidade do solo; Adubação.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/154524

Initial Growth of Mimosa scabrella Benth., Schinus terebinthifolius Raddi e Allophylus edulis (St. Hil.) Radl. with Different Levels of Mineral Fertilization
Provedor de dados: 190
Autores: Knapik, Juliane Garcia; Almeida, Lausanne Soraya de; Ferreria, Marcio Pinheiro; Oliveira, Edilson Batista de; Nogueira, Antonio Carlos.
In order to study the influence of mineral nutrition on quality and the growth of seedlings of Schinus terebinthifolius Raddi, Mimosa scabrella Benth. and Allophylus edulis (ST. Hil.) Radl, a experiment was conducted in the nursery facilities of Embrapa Florestas, Colombo – PR. The three species were sown in plastic containers of 50 cm3 in February 2004. The substrate was a mixture of a commercial formula (pine bark and vermiculite) and granulated coconut fiber in a proportion of 70% and 30% respectively. The treatments were three different dosages of mineral fertilizers, which were divided in two applications, base fertilizaton (mixed to the substrate) and covering. A completely randomized design was used, with 7 repetitions and 9 seedlings per plot....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forest seedlings; Mineral fertilization; Brazil. Mudas florestais; Aroeira-vermelha; Bracatinga; Vacum; Adubação mineral.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/225

Inulin production by Vernonia herbacea as influenced by mineral fertilization and time of harvest
Provedor de dados: 88
Autores: CARVALHO,MARIA ANGELA MACHADO DE; PINTO,MARCOS MECCA; FIGUEIREDO-RIBEIRO,RITA DE CÁSSIA LEONE.
The underground organs of Vernonia herbacea (Vell.) Rusby, known as rhizophores, acumulate 80% of their dry mass as fructans of the inulin type. In view of the growing industrial use of fructans as dietetic and general food products, and of their medical application, the present investigation aimed at evaluating the effect of mineral fertilization and period of cultivation on the production of these carbohydrates in field trials. Plants used in the experiments were obtained by vegetative propagation from rhizophores collected from plants growing in natural areas of the cerrado, and cultivated for two years. Fertilization consisted of N:P2O5:K2O (80:200:150 kg.ha-1) plus 80 kg.ha-1 nitrogen as dressing. Soil fertilization did not stimulate biomass or inulin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asteraceae; Fructans; Cerrado; Mineral fertilization.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000300006

NPK fertilization on initial growth of physic nut seedlings in Quartzarenic Neossol
Provedor de dados: 90
Autores: Souza,Patrícia Teixeira de; Silva,Enilson de Barros; Grazziotti,Paulo Henrique; Fernandes,Luiz Arnaldo.
Balanced fertilization is important for plant growth. There is little information on physic nut (Jatropha curcas L.) and tests with the fertilization of the species are very recent. This study evaluated the initial growth of physic nut seedlings in response to NPK rates to Quartzarenic Neossol in a greenhouse and estimated P and K critical soil levels and N, P and K in shoot dry matter after 120 days of evaluation. The treatments were arranged in a randomized, fractional factorial design (4 x 4 x 4)½, totalizing 32 treatments with three replicates, 96 experimental plots and N rates (0, 75, 150 and 300 mg dm-3) as urea; P rates (0, 45, 90 and 180 mg dm-3) as triple superphosphate and K rates (0, 50, 100 and 200 mg dm-3) as potassium chloride. After 120...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mineral fertilization; Jatropha curcas; Oleaginous species.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000200025

Soybean nutritional status and seed physiological quality with swine wastewater
Provedor de dados: 91
Autores: Passarin,Olga M.; Sampaio,Silvio C.; Rosa,Danielle M.; Reis,Ralpho R. dos; Correa,Marcus M.
ABSTRACT Swine wastewater application is a practice that can become viable in agriculture, for minimizing fertilization costs and improving soil conditions. Therefore, it is essential to establish criteria that define appropriate application doses from the agronomic and environmental perspectives. The objective of this study was to evaluate the effects of swine wastewater doses associated with mineral fertilization on soybean nutritional status and physiological quality of seed. The experiment was conducted in the agricultural year of 2010/2011, using twenty-four drainage lysimeters in randomized block design in 4 x 2 factorial scheme, with four swine wastewater doses (0, 100, 200 and 300 m3 ha-1) applied before sowing, associated with presence and absence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mineral fertilization; Swine waste; Water reuse.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000100016

Yield of onion in soil with cattle manure and nitrogen
Provedor de dados: 91
Autores: Belem,Aline B.; Oliveira,Ademar P. de; Guimarães,Luciana M.; Chaves,Josyelem T. L.; Bertino,Antonio M. P.
ABSTRACT Onion is the third vegetable crop in economic importance for Brazil, only behind potato and tomato, and responds with increased production to the use of organic and mineral fertilizers. The objective of this study was to evaluate the effect of doses of cattle manure and nitrogen (N) on onion growth and yield. The experimental design used was randomized blocks, in 6 x 2 factorial scheme, corresponding to six doses of cattle manure (0; 10; 20; 30; 40 and 50 t ha-1), in the presence and absence of N, with four repetitions. The variables studied were: shoot fresh and dry masses, total and marketable bulb yields, percentage of bulbs classified and leaf N content. There was an interactive effect (p ≤ 0.05) of cattle manure and N doses on shoot fresh and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa L.; Organic fertilization; Mineral fertilization.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000300149

Growth, production and water and nitrogen use efficiency of maize under water depths and nitrogen fertilization
Provedor de dados: 91
Autores: Campelo,David H.; Teixeira,Adunias dos S.; Moreira,Luis C. J.; Lacerda,Claudivan F. de.
ABSTRACT The objective of this study was to evaluate the growth, the production components and the water (WUE) and nitrogen use efficiency (NUE) in maize (Zea mays L.), as function of water depths and nitrogen doses. The experimental design was randomized blocks in a split-plot scheme with four repetitions. The irrigation treatments applied in the plots were composed of four water depths: 80, 90, 100 and 110% of the water requirement, based on the soil field capacity, while the N doses, distributed in the subplots, were 0, 60, 120 and 180 kg ha-1. Increases in water depths and in N doses promote linear increases in plant height and leaf area index. For cycle I (2015) the maximum yield (16,778.3 kg ha-1) was reached with the irrigation depth of 538.1 mm and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays L.; Irrigation management; Mineral fertilization.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001000747