Uso de índices fenológicos em modelos de previsão de produtividade do cafeeiro

Alfonsi, Eduardo Lauriano

doi:10.11606/t.11.2008.tde-22072008-155558

Cited by 2 publications

(2 citation statements)

References 8 publications

(20 reference statements)

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“…Foram avaliados também o número de internódios dos ramos plagiotrópicos, sendo marcados aleatoriamente 6 ramos laterais na altura do terço médio em seis plantas de cada parcela. Foi avaliado também o número de entrenós desenvolvidos no período (ALFONSI, 2008).…”

Section: Introductionunclassified

Plant growth promotion by phosphate solubilizing fungi – current perspective

Khan

Zaidi

Ahemad

et al. 2010

Archives of Agronomy and Soil Science

456

213

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Most Brazilian soils present low natural fertility and, often, with unbalanced nutrient contents. The use of cover crops as green manure improves soil fertility by increasing organic matter, increasing soil CEC, decreasing water erosion and reducing fertilization costs. In addition, such use stimulates the biological fraction of the soil composed of microorganisms, which perform essential functions and beneficial to the soil as decomposition of organic matter and release of nutrients unavailable to plants. Soil bioactivators are composed of organic and carboxylic acids that increase the release of macro and micronutrients from soils to plants, among which we can highlight the bioenergetic Penergetic associated to cover plants in the chemical, physical and biological characteristics and the influence of these parameters related to coffee development. The research was conducted at Fazenda Boa Esperança, in the municipality of Serrania -MG, using cover plants associated with the bioactivator in the field, using a randomized block design, in a 4x2 factorial scheme, analyzing the chemical, physical and biological characteristics of soil and coffee plant. After tabulation, the data were submitted to analysis of variance by grouping the means by means of the Scott Knott test, at 5% probability. The results indicated that the use of cover crops associated to the bioactivation technology contribute to the improvement of the chemical characteristics (CTC, base sum, base saturation, acidity, macro and micronutrients), physical (temperature and humidity) (Phosphorus and Potassium solubilizing diazotrophic bacterium) and the growth of coffee tree branches and productivity, as well as the reduction of the nematode population (Meloidogyne and Xiphinema).

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Section: Introductionunclassified

Plant growth promotion by phosphate solubilizing fungi – current perspective

Khan

Zaidi

Ahemad

et al. 2010

Archives of Agronomy and Soil Science

456

213

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“…Six lateral branches were randomly selected at the height of the middle third in six plants of each plot. It was also evaluated the number of internodes developed in the period (ALFONSI, 2008).…”

Section: Methodsmentioning

confidence: 99%

Chemical Properties of Soil and Coffee Production Cultivated With Different Coverage Plants Associated With the Use of Bioativador

Franco¹,

Terra

Teruel

et al. 2018

C.Sci.

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Coffee cultivation has great socio-economic relevance in Brazil for the employment and income generation and there is currently a constant search for sustainable management techniques. Among them, we can mention the use of cover crops and soil bioactivators. However, studies relating the use of these two techniques are still incipient. Based on this, the objective of this research was to evaluate the effect of the Penergetic® bioactivator associated with different cover crops on chemical properties of soil and coffee productivity. The experiment was carried out in a coffee field with Catuaí Vermelho cultivar IAC 144, in a randomized block design in a factorial scheme 4 (soil cover) x 2 (use or not of the Penergetic® bioactivator), consisting of control (without plant cover); oats (Avena strigosa) + forage turnip (Raphanus sativus L); oats (Avena strigosa) + forage turnip (Raphanus sativus L) + lupine (Lupine albus) + rye (Secale cereale) + vetch (Vicia sativa); Brachiaria brizantha (Urochloa brizantha), associated or not with the use of the Penergetic® bioactivator. The experiment was conducted for 6 months and after that period, the chemical properties of soil, the nutrient contents of the coffee plants, the development of the branches and the coffee productivity were analyzed. Data were analyzed by the Scott Knott test at 5% probability. It was verified the interaction between cover crops and the use of the Penergetic® bioactivator, positively influencing soil chemical characteristics, coffee nutrition and productivity.

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Uso de índices fenológicos em modelos de previsão de produtividade do cafeeiro

Cited by 2 publications

References 8 publications

Plant growth promotion by phosphate solubilizing fungi – current perspective

Plant growth promotion by phosphate solubilizing fungi – current perspective

Chemical Properties of Soil and Coffee Production Cultivated With Different Coverage Plants Associated With the Use of Bioativador

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