Buscar
Mostrando ítems 1-10 de 455
Stability and phosphorus leaching of tilapia feed in water
(Univ Federal Santa Maria, 2019-01-01)
The present research aimed to investigate the stability of pellets and phosphorus leaching of diets formulated for juveniles of Nile tilapia (Oreochromis niloticus), with different sources of phosphorus and different ...
Phosphorus fractions as a function of the use of phosphate fertilizers in different soil classesFrações de fósforo em função do uso de fertilizantes fosfatados em distintas classes de solo
(2021-08-05)
Most Brazilian soils have low natural fertility. The main characteristic is phosphorus (P) deficiency and high P adsorption capacity. This creates the need to add phosphate mineral fertilizers, organic or organomineral. ...
Phosphorus sources and fractions in an oxisol under no-tilled soybean
(Universidade de São Paulo (USP), Escola Superior de Agricultura Luiz de Queiroz (ESALQ), 2008-01-01)
A dinâmica do P no solo pode ser modificada em sistemas com semeadura direta. Os agricultores brasileiros vêm aplicando fósforo na superfície do solo para otimizar a operação de máquinas, embora não seja uma prática ...
Brachiaria As A Cover Crop To Improve Phosphorus Use Efficiency In A No-till Oxisol
(Revista Brasileira de Ciencia do Solo, 2016)
Phosphorus in the culture of the Amazon river prawn (Macrobrachium amazonicum) and tambaqui (Colossoma macropomum) farmed in monoculture and in integrated multitrophic systems
(Wiley-Blackwell, 2019-11-03)
Inputs, outputs, and accumulation of phosphorus were evaluated for monoculture and polyculture grow-outs of the Amazon river prawn, Macrobrachium amazonicum and tambaqui, Colossoma macropomum in stagnant earthen ponds using ...
Promotion of maize growth using endophytic bacteria under greenhouse and field conditions
(2019-12-01)
The effect of Bacillus subtilis isolates before being used as inoculants is very important. They present various impacts on promotion and characteristics of plant at different stages of growth. This experiment was carried ...
Biogenic calcium phosphate transformation in soils over millennial time scales
(SPRINGER HEIDELBERG, 2009)
Changes in bioavailability of phosphorus (P) during pedogenesis and ecosystem development have been shown for geogenic calcium phosphate (Ca-P). However, very little is known about long-term changes of biogenic Ca-P in ...
Biological evaluations of commercial dicalcium phosphates as sources of available phosphorus for broiler chicks
(Poultry Science Assoc IncSavoyEUA, 1997)
Microcystin-LR in Brazilian Aquaculture Production Systems
(Water Environment Federation, 2010-03-01)
The growth of aquaculture production systems, mostly the sport-fishing kind, coupled with a lack of control, brings about concerns on the quality of water and food produced. The current paper determines which factors may ...
Seed phytate and protein content in beans depending on the application of basalt powder
(UNIV ESTADUAL MARINGA, PRO-REITORIA PESQUISA POS-GRADUACAO, 2011)
Seed phytate and protein content in beans depending on the application of basalt powder. The content of phytate in the grains is correlated with the supply of phosphorus to the plant, but there is a lack of knowledge as ...