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Calcium and available phosphorus levels for laying hens in second production cycle
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2009-03-01)
This experiment studied the effect of four calcium (3.0, 3.5, 4.0, and 4.5%) and four available phosphorus levels (0.25, 0.30, 0.35, and 0.40%) in the diet of semi-heavy commercial layers after molting. Hisex Brown® layers ...
Influência do fósforo na qualidade e produtividade de tubérculos de cultivares de batata de duplo propósito
(2016-07-01)
Even in areas with high levels of phosphorus (P) available in the soil, application of this nutrient is common, aiming to increase potato tuber yield and size. However, the effect of high P rates on tuber yield and quality ...
Methods and extractants to evaluate silicon availability for sugarcane
(2018-12-01)
The correct evaluation of silicon (Si) availability in different soil types is critical in defining the amount of Si to be supplied to crops. This study was carried out to evaluate two methods and five chemical Si extractants ...
Ecological Correlates of Roost Fidelity in the Tent-Making Bat Artibeus watsoni
(2007-05)
Roost switching is a common occurrence in bats, yet the causes and consequences of such behavior are poorly understood. In this study we explore the ecological correlates of roost fidelity in the tent‐making bat Artibeus ...
Relative bioavailability of phosphorus in feed and agricultural phosphates for poultry
(Poultry Science Assoc IncSavoyEUA, 1999)
Sewage Sludge Application in Eucalyptus urograndis Plantation: Availability of Phosphorus in Soil and Wood Production
(Frontiers Media Sa, 2020-07-28)
Phosphate fertilizers used in planted forests mainly come from scarce and non-renewable sources, and there is a need for new sources of phosphorus (P). An alternative is the use of sewage sludge (SS), rich in organic matter, ...
Biomass Accumulation and Nutritional Requirements of Potato as Affected by Potassium Supply
(2020-09-01)
Potassium (K) supply affects the growth and tuber yield of potato (Solanum tuberosum L.) as well as the uptake and removal of certain nutrients. However, information on this is scarce or inconsistent. Thus, this study was ...
Duration of cambial activity is determined by water availability while cambial stimulus is day-length dependent in a Neotropical evergreen species
(2017-09-01)
Experimental manipulations are essential for understanding the causal factors of plant growth and cambial activity. Here, we studied the potential effect of water availability and natural variation of day length and ...
Carbon, nitrogen and phosphorus mineralization in two soils amended with distillery yeast
(Elsevier B.V., 2004-09-01)
The possibility of using yeast from alcohol distilleries as a source of nutrients in soil was investigated. The following treatments were used: no fertilization (control), 0.5% (w/w) yeast, 1% (w/w) yeast, and NPK. The ...