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| Galetto,Shivelly Los; Fonseca,Adriel Ferreira da; Harkatin,Silvano; Auler,André Carlos; Carvalho,Igor Quirrenbach de. |
| The objectives of this study were to assess the concentrations of available phosphorus (P) extracted using the Mehlich-1 (M1), ion exchange resin (IER) and modified Morgan (MM) methods after 36 months of experimentation with the application of phosphates in a crop-livestock integration system (CLIS). Moreover, this study aimed to assess which extraction method provides the best correlation of P concentrations with the maize crop attributes. The treatments consisted of applying annual doses of P2O5 on the soil surface of the total area during the sowing of winter forage crops in the form of triple superphosphate (TSP), rock phosphate (RP) or magnesium thermophosphate (MTP). After 36 months of experimentation, soil samples were collected from the 0-5, 5-10,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Mehlich-1; Ion exchange resin; Modified Morgan. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500011 |
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| Galetto,Shivelly Los; Fonseca,Adriel Ferreira da; Harkatin,Silvano; Reifur,Hendrik Ivan; Carvalho,Igor Quirrenbach de. |
| The aim of this study was to assess the effects of the sources and levels of surface-applied (broadcast) phosphorus (P) when sowing the winter annual forages on phosphorus accumulation and yields of maize, soybean, black oat and annual ryegrass crops in a crop-livestock integration system over three years. The experiment was established in April 2009, in the municipality of Castro, Parana, Brazil. The treatments consisted of the broadcast application when sowing the winter forages of four doses (0, 60, 120 and 180 kg ha-1 year-1) of total P2O5 as triple superphosphate (TSP), rock phosphate (RP-Arad) and magnesium termophosphate (MTP). The dry matter yields of black oat (2009 and 2011), annual ryegrass (2010), maize (2009/10 and 2011/12) and soybean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L; Glycine max (L.) Merril; Black oat; Annual ryegrass; Crop-livestock integration. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500009 |
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| Guera,Keli Cristina Silva; Fonseca,Adriel Ferreira da; Harkatin,Silvano. |
| ABSTRACT Conservation agriculture practices, such as integrated crop-livestock system (ICLS), can result in efficiency of phosphorus use and, economic and environmental benefits. The higher nutrient cycling, deposited crop and animal residues in the soil surface can promote the maintenance of soil fertility. Thus, the anticipated of phosphate fertilization may be a viable strategy of fertilization for soybean crop, in this system. The objective of this work was to determine the yield, accumulation of P and phosphorus use efficiency (PUE) on the dry biomass and grains of the soybean crop, in an integrated crop-livestock system (ICLS) due to anticipated fertilization of sources and doses phosphates annually applied in the soil surface. The experiment was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anticipated fertilization; Sustainable intensification; Glycine max (L.) Merr. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000300404 |
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