Grain crops and forage yield resulting from the use of phosphates in integrated production system

Galetto, Shivelly Los; Fonseca, Adriel Ferreira da; Harkatin, Silvano; Reifur, Hendrik Ivan; Carvalho, Igor Quirrenbach de

doi:10.1590/s1806-66902014000500009

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…It should be noted that TP is the second fertilizer with the highest solubility (after MAP) of those used in the wheat experiment. Galetto et al (2014) evaluated P fertilizers with different solubility Fig. 2 Thousand grain weight (a) and yield (b) (mean ± standard error, n = 4) of the wheat plants at harvest as a function of the application method (soil surface and sowing line) and P fertilizers used in this study.…”

Section: Thousand Grain Weight and Yieldmentioning

confidence: 99%

Enhancing Wheat and Soybean Yields in a Subtropical Oxisol Through Effective P Fertilization Strategies

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Borga

Frosi

et al. 2020

J Soil Sci Plant Nutr

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Phosphorus (P) deficiency limits agricultural production in tropical and subtropical soils, where soil mineralogy is dominated by kaolinite, iron, and aluminum oxides. The aim of this work was to compare two application methods of P, to the soil surface and to the sowing line, to determine the most effective strategy to increase wheat and soybean yields on an oxidic subtropical soil in Brazil under field conditions. Additionally, four inorganic P fertilizers (monoammonium phosphate (MAP); single superphosphate (SS); triple superphosphate (TP); and natural rock phosphate (NP)) in a wheat crop and four different P rates (zero, 0; low, 45; medium, 90; and high, 180 kg ha −1 of P 2 O 5) of TP in a soybean crop were tested after being applied to the soil surface and to the sowing line. A significant increase in yield (54%) was only found when TP was applied to the sowing line in comparison with the soil surface in wheat plants, probably due to its high solubility. However, the application method did not produce a significant effect in soybean yields, probably because this crop has a different P requirement and root distribution pattern than wheat. In the case of P fertilizers applied to the soil surface, higher wheat yields were observed with NP and MAP in comparison with TP. Finally, a linear increase was observed in soybean yields while increasing the P rate, finding significant differences between the plants fertilized with the highest P rate and the non-P-fertilized plants (24% yield increase in the first case). Our results highlight the need for specific P fertilization strategies for the different crops grown on subtropical regions where soil mineralogy curbs P availability.

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Section: Thousand Grain Weight and Yieldmentioning

confidence: 99%

Enhancing Wheat and Soybean Yields in a Subtropical Oxisol Through Effective P Fertilization Strategies

Fink

Borga

Frosi

et al. 2020

J Soil Sci Plant Nutr

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Soil Phosphorus in an Integrated Crop-livestock System under Anticipated Phosphates Fertilization

Guera

Fonseca

2021

Communications in Soil Science and Plant Analysis

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Phosphorus fractions and their relationships with soil chemical attributes in an integrated crop-livestock system under annual phosphates fertilization

Guera

Fonseca

2022

Front. Sustain. Food Syst.

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The main factors affecting phosphorus (P) availability in soils are mineralogy, acidity, and concentration of elements in the soil solution. Moreover, P fertilizer sources and amounts can affect P cycling and adsorption of this element on colloids. In this research, we hypothesized that the use of phosphate sources of different solubilities can alter soil P adsorption process, due to chemical compositions of these sources and, in ICLS, the soil-plant-animal system can change the P forms distribution on soil profile and its interactions with the soil chemical attributes. To examine these hypotheses, a field experiment was conducted over 5 years, under a Haplic Cambisol, in an incomplete factorial scheme, with the treatments being composed of three P sources (triple superphosphate, rock phosphate—Arad and magnesium thermophosphate), three doses of total P2O5 (60, 120, and 180 kg ha−1) plus a treatment without application of phosphate fertilizer. Phosphate applications occurred annually, broadcast without incorporation, at the time of sowing the annual winter forage, in a crop rotation system that included pasture in autumn-winter and grain crops in spring-summer. Soil samples were collected at depths of 0 to 5, 5 to 10, 10 to 15, 15 to 20, and 20 to 30 cm and evaluated by Hedley P fractionation and the soil chemical attributes were quantified. The use of different phosphates applied broadcast without incorporation did not influence the concentrations of soil P fractions over a 5 year study. Phosphate fertilizer doses above 120 kg ha−1 of total P2O5 increased moderately labile and non-labile P fractions. The highest concentration of labile P was found up to 15 cm soil depth. It was found that P lability is strongly associated with calcium and total organic carbon concentrations in the soil profile. High concentrations of basic cations and sulfate in the soil solution increased moderately labile and non-labile P fractions. The complexity of ICLS interactions to maintain phosphorus dynamics in the soil was shown to be an intricate P release/adsorption process associated with soil chemical attributes.

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Grain crops and forage yield resulting from the use of phosphates in integrated production system

Cited by 3 publications

References 32 publications

Enhancing Wheat and Soybean Yields in a Subtropical Oxisol Through Effective P Fertilization Strategies

Enhancing Wheat and Soybean Yields in a Subtropical Oxisol Through Effective P Fertilization Strategies

Soil Phosphorus in an Integrated Crop-livestock System under Anticipated Phosphates Fertilization

Phosphorus fractions and their relationships with soil chemical attributes in an integrated crop-livestock system under annual phosphates fertilization

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