Now showing items 1-10 of 64
Effects of silicon (Si) fertilization on gas exchange and production in Brachiaria
(Australian Journal of Crop Science, 2016-03-01) [Artigo]
Calcium silicate (CaSiO3) applied to the soil may increase Si content in the soil and plants, as well as reduce sweating and increase water use efficiency. In this study, we aimed to investigate whether the application of ...
Soil fertility, plant nutrition, and grain yield of upland rice affected by surface application of lime, silicate, and phosphogypsum in a tropical no-till system
(Catena, 2016-02-01) [Artigo]
The development of technologies that provide rapid acidity amelioration of the soil profile through the surface application of amendments and phosphogypsum, such as no-till (NT) systems, is extremely important to provide ...
Soil carbon as affected by cover crops under no-till under tropical climate
(Soil Use And Management, 2016-12-01) [Artigo]
In tropical, low-fertility soils, crop yields are dependent on soil carbon, and cropping systems under no-till can increase soil C stocks. Plant residues supplied by cover crops in no-till systems may improve aggregate ...
Is the initial nest depth adapted to favorable conditions for the incipient colony in leaf-cutting ants?
(Sociobiology, 2016-06-01) [Artigo]
The nest dug by the leaf-cutter ant queen of the genus Atta is a vertical tunnel interconnected to a small chamber which holds its offspring and the symbiotic fungus. The depth of the initial chamber of the Atta sexdens ...
Genetic variation and gain in progenies of crambe
(Crop Breeding and Applied Biotechnology, 2016-01-01) [Artigo]
The objective of this study was to estimate the genetic variability of a Brazilian cultivar of crambe, as well as to estimate the genetic gain, with selection focusing on grain yield in crambe. Eighty two progenies were ...
Leaf anatomy of emerald grass submitted to quantitative application of herbicides
(Semina:Ciencias Agrarias, 2016-07-01) [Artigo]
The aim of this work was to evaluate the selectivity of herbicides applied in post-emergence on Zoysia japonica Steud (Poaceae) and determine associations with the leaf anatomy of this grass. The experimental design was ...
TRINEXAPAC-ETHYL AFFECTS GROWTH AND GAS EXCHANGE OF UPLAND RICE
(Revista Caatinga, 2016-01-01) [Artigo]
A major problem affecting some upland rice cultivars is the increase in plant size when subjected to high doses of nitrogen fertilizer, leading to high levels of lodging. A method to reduce the height of upland rice, and ...
Ocorrência de Phytophthora nicotianae em mamoneira (Ricinus communis L.) no Brasil
(Summa Phytopathologica, 2016-04-01) [Nota]
Controle genético para a tolerância a geada em progênies de Eucalyptus urophylla
(Scientia Forestalis/Forest Sciences, 2016-06-01) [Artigo]
This research aimed to study the genetic control of silvicultural traits in Eucalyptus urophylla progenies for frost tolerance. Three open-pollinated progeny tests were installed in a randomized blocks design, 150 progenies, ...
Macronutrient Uptake and Removal by Upland Rice Cultivars with Different Plant Architecture
(Revista Brasileira De Ciencia Do Solo, 2016-01-01) [Artigo]
Modern high-yielding rice cultivars possibly take up and remove greater quantities of macronutrients than traditional and intermediate cultivars. This study was carried out with the aim of evaluating the extraction and ...