54 research outputs found
Phosphorus placement for annual crops in the tropics.
This article discusses principles for optimizing the placement of P in soils of the tropics?looking towards better agronomic, economic, environmental, and social outcomes. General guidelines are offered for short and long-term sustainability
Exploitation of mitochondrial nad6 as a complementary marker for studying population variability in Lepidoptera
The applicability of mitochondrial nad6 sequences to studies of DNA and population variability in Lepidoptera was tested in four species of economically important moths and one of wild butterflies. The genetic information so obtained was compared to that of cox1 sequences for two species of Lepidoptera. nad6 primers appropriately amplified all the tested DNA targets, the generated data proving to be as informative and suitable in recovering population structures as that of cox1. The proposal is that, to obtain more robust results, this mitochondrial region can be complementarily used with other molecular sequences in studies of low level phylogeny and population genetics in Lepidoptera
Nutrition of Tithonia diversifolia and attributes of the soil fertilized with biofertilizer in irrigated system
DISPONIBILIDADE E RECUPERAÇÃO DE NUTRIENTES DE RESÍDUOS CULTURAIS EM SOLO COM DIFERENTES TEXTURAS
Efeitos de restos culturais de milho sobre o crescimento de plantas de cafeeiro (Coffea arabica L.)
Phosphatase activity in sandy soil influenced by mycorrhizal and non-mycorrhizal cover crops
Fertilidade do solo e estado nutricional do cafeeiro cultivado em atmosfera enriquecida com CO2
Semeadura direta de genótipos de arroz irrigado em sucessão a espécies de cobertura de inverno
Characterization of chemical and mineral composition of marolo (Annona crassiflora Mart) during physiological development
- …