Organic amendments as a source of phosphorus: agronomic and environmental impact of different animal manures applied to an acid soil

Horta, Carmo; Roboredo, M.; Carneiro, J.P.; Duarte, António Canatário; Torrent, J.; Sharpley, Andrew N.

doi:10.1080/03650340.2017.1346372

Cited by 30 publications

(15 citation statements)

References 55 publications

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“…The organic fertilizer, C VER , was applied at a dose of 80 Mg/ha. According to Saha et al [49] and Horta et al [54], the application of C VER leads to the increased content and availability of basic nutrients in the soil through the mineralization of SOM. The double dose of C VER had a significant positive effect on plant available phosphorus content in the soil (Table 7).…”

Section: Soil Enzyme Activitiesmentioning

confidence: 99%

Response of Microbial Activities in Soil to Various Organic and Mineral Amendments as an Indicator of Soil Quality

et al. 2019

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The presented paper deals with the analysis of potential differences between organic waste compost (CBD), vermicompost (CVER) and mineral fertilizer (MF; 27% of N) applications affecting the quality of arable soil by influencing microbial activity therein. The selected types of compost represent alternatives to conventional organic fertilizers, which are, however, not available to Czech and Slovak farmers in sufficient amounts. Their mutual comparison and the comparison with organic fertilizers aim to provide farmers further information about their influence on arable land and thus to give them the possibility of deciding on the most suitable amendments. To demonstrate the effect of these amendments, six variants were prepared: one without the addition of fertilizers; two variants with the addition of 40 Mg/ha of CVER and CBD; one variant with the addition of double dosed CVER (80 Mg/ha), and the remaining two variants were fertilized only with MF (0.22 Mg/ha) and with the combination of CVER (0.20 Mg/ha) and MF (0.11 Mg/ha). Substrate induced respiration (SIR), basal respiration (BS), microbial carbon (Cmic) and enzymatic activities (hydrolysis of fluorescein diacetate—FDA, dehydrogenase activity—DHA, and phosphatase activity—PA) were used to evaluate the effect of CBD, CVER and MF application on the soil quality. Both organic and mineral amendments affected BS and SIR. The highest BS and SIR rates were found in variants with compost application (CVER and CBD). All variants treated with the mineral fertilizer showed the lowest level of enzyme activities; lower by about 30% in comparison with variants where CVER, CBD and the combination of MF and CVER were applied. We found insignificant differences between the individual types of compost. More importantly, we compared the situation at the beginning of the experiment and after its end. It was found that the application of mineral fertilizers automatically led to the deterioration of all enzymatic parameters, on average by more than 25%, as compared with the situation at the beginning of the experiment. However, when the mineral fertilizer dose was supplemented with organic amendments (CVER), this negative effect was eliminated or significantly reduced. Furthermore, both composts (CVER and CBD) positively affected plant biomass production, which reached a level of production enhanced by the MF. Results clearly showed that the application of both compost types could be used to improve soil quality in agriculture.

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Section: Soil Enzyme Activitiesmentioning

confidence: 99%

Response of Microbial Activities in Soil to Various Organic and Mineral Amendments as an Indicator of Soil Quality

et al. 2019

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“…Thus, fertilizer application is one of the important factors dictating the abundance of different P fractions and pools of P. Without P addition, P pool is mainly considered as non-labile but may become increasingly available to plants at variable amounts depending on soil type and other environmental conditions 17 , 18 . Long-term application of animal manures and other organic amendments have shown to increase soil total, available, and soluble P concentrations and at soil depths 19 – 21 . Whalen and Chang 22 have reported that total and available P pools increased greatly in soils amended with manure annually for 16 years and were 1.2–3.8 and 0.8–1.9 Mg P ha −1 greater than in the soils that did not receive any manure.…”

Section: Introductionmentioning

confidence: 99%

Long-term application of fertilizer and manures affect P fractions in Mollisol

Al-Kaisi

Han

et al. 2020

Sci Rep

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Application of phosphorus (P), a major plant nutrient, as fertilizer is critical to maintain P level for crop production and yield in most cultivated soils. While, it may impact the dynamics, limited studies have examined the long-term effects of fertilization on P fractions in a soil profile in Mollisol. A long-term field experiment was conducted at the State Key Experimental Station of Agroecology of the Chinese Academy of Sciences in Hailun county, Heilongjiang Province, China. A sequential fractionation procedure was used to determine the effect of fertilizer (types) treatments including no fertilizer (CK), chemical fertilizer (NPK), chemical fertilizer plus straw (NPK + S) and pig manure (OM) on fractions of P and their distribution within 0–100 cm soil profiles. Unlike CK treatment, the long-term application of fertilizers increased the concentration and accumulation of total and available P in 0–20 and 0–40 cm soil depths than deeper soils, respectively. The phosphorus activity coefficient (PAC) ranged from 1.5 to 13.8% within 0–100 cm soil depth. The largest PAC value was observed under OM treatment at 0–40 cm soil depth and under NPK + S treatment at 40–100 cm soil depth. The Ca2-P and Ca8-P concentrations increased significantly by 0.5–7.5 times and 0.5–10.4 times, respectively in OM treatment with the largest value in 0–40 cm soil depth over CK treatment. The Al-P concentration under NPK + S and OM treatments increased throughout the soil profile. The OM treatment increased all Po concentrations in the 0–40 cm soil depth, while NPK and NPK + S treatments increased labile organic P, moderately labile organic P, and highly stable organic P in the 0–20 cm soil depth. Thus, the application of fertilizer and straw, or organic manure may enhance inorganic and organic P pool in a Mollisol in Northeast China. Thus, organic manure application in the subsoil as a potential P source and their impact should be considered in developing management practices and policies regarding nutrient management.

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“…The main processes to explain this conclusion include: 1) Competitive sorption between humic and fluvic acids [10] [11] [12] or low molecular weight aliphatic acids (LOA) and P for soil sorption sites resulting in increased P concentration in the soil solution [13] [14] [15]; 2) Metal complexation with OM compounds (LOA) or dissolution reactions affecting mainly Fe an Al oxides decreasing P sorption sites [14] [16] and 3) Sorption of OM compounds that could increase the negative charge on the soil surface, or decrease the point of zero charge (PCZ) increasing the resistance to P sorption. Unlike these effects, OM added to soil could increase the formation of metal bridges leading to increased P sorption sites [17] or in turn the P content of the added OM could also be a source of available P to soil solution [18] [19]. To assess P phytoavailability, some soil tests P (STP), like the Olsen (Olsen-P, [20]) and the Ammonium Lactate (AL-P, [21]) are commonly used.…”

Section: Introductionmentioning

confidence: 99%

Fertilisation with Compost: Effects on Soil Phosphorus Sorption and on Phosphorus Availability in Acid Soils

Horta¹

2019

OJSS

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Phosphate mineral fertilisers are manufactured from non-renewable resources. Soil fertilisation with composts is considered a good source of reuse nutrients such as phosphorus (P). The aim of this work was to evaluate the effect of compost fertilisation on soil P sorption and consequently on P availability. It was done an incubation experiment followed by a sorption experiment in a low-P acid soil fertilised with compost (CP) or single superphosphate (SSP). The P application rates were: 0, 6.5, 13, 26 and 52 (kg•P•ha −1 ). In CP treatments, the rates 26 and 52 kg•P•ha −1 were achieved by adding SSP to CP since it was not allowed to incorporate into soil more than 170 kg•N•ha −1 from organic amendments. Although SSP has a higher proportion of easily available P than CP (86% vs 50%), the results showed that after 140 days of soil incubation, the available P was higher in CP treatments compared with SSP at the same rate of P application. The sorption experiment showed that after incubation of the fertilised soils, the P sorption maximum had lower values in treatments with CP in combination with SSP compared with only SSP fertilisation and the bonding energy had a deeper decrease in the same treatments. Also, the Standard Phosphate Requirement decreased in the CP in combination with SSP treatments. The reduction of soil P sorption capacity after compost addition to soil highlights the need of reducing P fertilisation rates to achieve similar levels of available P compared with only SSP fertilisation.

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Organic amendments as a source of phosphorus: agronomic and environmental impact of different animal manures applied to an acid soil

Cited by 30 publications

References 55 publications

Response of Microbial Activities in Soil to Various Organic and Mineral Amendments as an Indicator of Soil Quality

Response of Microbial Activities in Soil to Various Organic and Mineral Amendments as an Indicator of Soil Quality

Long-term application of fertilizer and manures affect P fractions in Mollisol

Fertilisation with Compost: Effects on Soil Phosphorus Sorption and on Phosphorus Availability in Acid Soils

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