Results: 75

Liming and Nitrogen Fertilization Effects on Soil Microbial Community in Long Term No-till

Braz. arch. biol. technol; 63 (spe), 2020
Abstract Soil management influences organic matter decomposition rates as well soil microbial community functional behavior. No-till (NT) is the most used management system by farmers due to its conservation practices and high productivity. The main objective of this study was to evaluate the impact of s...

Phytophagous insects and natural enemies in kale under organic and chemical fertilizers

Arq. Inst. Biol; 87 (), 2020
Organic agriculture is distinguished by practices that benefit the environment and support sustainable agriculture. In the present study, leafy kale, Brassica oleracea L. var. acephala DC., was submitted to chemical and organic (castor bean cake and bovine manure) fertilization treatments aiming to verif...

Compatibility of Heterorhabditis amazonensis MC01 (Nematoda: rhabditida) with fertilizers and soil conditioners

Biosci. j. (Online); 35 (6), 2019
Entomopathogenic nematodes are natural enemies of insect pests present in the soil; however, the intensive use of agricultural inputs can affect the action of these organisms. The objective of this study was to evaluate the effects of exposure of the nematode Heterorhabditis amazonensis MC01 t...

Tillering dynamics of Alexandergrass pasture under nitrogen fertilization

This study was carried out to evaluate the effect of nitrogen fertilization on tillering dynamics of Alexandergrass (Urochloa plantaginea (Link) Hitch) grazed by beef heifers in a rotational stocking grazing method. The experiment was conducted in a completely randomized design following a repeated measu...

The effect of green fertilizers on the ecological structure of soil invertebrate communities in an andisol of Southwestern Colombia

Rev. biol. trop; 67 (6), 2019
Introduction: Chemical fertilizers for agriculture can negatively affect the communities of soil invertebrates that contribute to nutrient cycling, nutrient availability, soil formation and fertility. As an alternative, previous work has suggested that green fertilizers (fresh tissue from plants) are eff...

Ammonia volatilization in response to coated and conventional urea in maize crop field

Biosci. j. (Online); 35 (3), 2019
The properly measurement of gas emissions and nutrient availability to crops using technologies such as polymer-coated urea are required to monitored the possible nitrogen (N) fertilizer pollution in the environment. This study aimed to evaluate N loss through ammonia ...

Soil chemical attributes variability under tillage and no-tillage in a long-term experiment in southern Brazi l

Biosci. j. (Online); 35 (2), 2019
Spatial variability of chemical attributes in soils tends to increase under the no-tillage system. However, data regarding this variability under this system for a long time are scarce. This study aimed to evaluate the spatial variability of phosphorus (P), organic matter (OM), pH,...

Psicologia ambiental e recursos em sustentabilidade: revisão integrativa

Psicol. ciênc. prof; 39 (), 2019
O objetivo deste estudo foi examinar, por meio de revisão integrativa de artigos empíricos, a produção científica relacionando a Psicologia Ambiental (variáveis de comportamento/cognição) e sustentabilidade, considerando diferentes recursos. Para efeitos deste estudo, foram analisados os artigos ...
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Influence of organomineral fertilization in the development of the potato crop CV. Cupid

Biosci. j. (Online); 35 (1), 2019
The potato crop is very demanding regarding the presence of nutrients in the form readily available in soil solution and the climatic conditions to ensure satisfactory production of tubers. Each potato cultivar has specific characteristics for its development. The object...

Enhanced shoot investment makes invasive plants exhibit growth advantages in high nitrogen conditions

Braz. j. biol; 79 (1), 2019
Abstract Resource amendments commonly promote plant invasions, raising concerns over the potential consequences of nitrogen (N) deposition; however, it is unclear whether invaders will benefit from N deposition more than natives. Growth is among the most fundamental inherent traits of plants and thus goo...