Changes in soil phosphorus balance and phosphorus-use efficiency under long-term fertilization conducted on agriculturally used Chernozem in Germany

Medinski, T.V.; Freese, Dirk; Reitz, Thomas

doi:10.1139/cjss-2018-0061

Cited by 23 publications

(17 citation statements)

References 37 publications

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“…In an agricultural ecosystem, P fertilization is the most common practice for guaranteeing the crop yield [1,2]. A large amount of residual P was accumulated in cultivated soils after long-term P overfertilization [3,4,5], and it was converted into less soluble and more stable forms, resulting in a low P use efficiency (PUE) (10-50%) [6,7]. Excessive P fertilizers caused soil Olsen-P to rapidly increase and resulted in a risk of nonpoint source pollution [8,9], but the crop yields were not improved by much [10].…”

Section: Introductionmentioning

confidence: 99%

The response of soil Olsen-P to the P budgets of three typical cropland soil types under long-term fertilization

Zhang

Wang

Wu³

et al. 2020

PLoS ONE

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The Olsen phosphorus (Olsen-P) concentration of soil is generally a good indicator for estimating the bioavailability of P and environmental risk in soils. To maintain soil Olsen-P at adequate levels for crop growth and environmental sustainability, the relationship between soil Olsen-P and the P budget (the P input minus the output) as well as the variations of soil Olsen-P and P budget were investigated from three long-term (22 years) experiments in China. Five treatments were selected: (1) unfertilized control (CK); (2) nitrogen and potassium (NK); (3) nitrogen, phosphorous, and potassium (NPK); (4) nitrogen, phosphorous, potassium and straw; (5) nitrogen, phosphorous, potassium and manure. The results showed that without P fertilizers (CK, NK), there was a soil P deficit of 75-640 kg ha-1 , and the lowest P deficit (mean of CK and NK) was in Eutric Cambisol. Soil Olsen-P decreased by 0.11-0.39 mg kg-1 year-1 in the order of Luvic Phaeozems > Eutric Cambisol > Calcaric Cambisol. Soil Olsen-P and the P deficit had a significantly (P<0.01) positive linear relationship. For every 100 kg of P ha-1 of deficit, soil Olsen-P decreased by 0.44-9.19 mg kg-1 in the order of Eutric Cambisol > Luvic Phaeozems > Calcaric Cambisol. Under the P fertilizer treatments (NPK, NPKS, and NPKM), soil Olsen-P showed an obvious surplus (except the NPK and NPKS in Luvic Phaeozems) of 122-2190 kg ha-1 , and the largest P surplus was found under the NPKM treatment at each site. The relation between soil Olsen-P and the experimental years could be simulated using quadratic equation of one unknown in Calcaric Cambisol for the lower P input after 14 years of fertilization. And soil Olsen-P increased by 1.30-7.69 mg kg-1 year-1 in the order of Luvic Phaeozems > Eutric Cambisol. The relation between soil Olsen-P and the P surplus could be simulated by a simple linear equation except under NPK and NPKS in Luvic Phaeozems. With 100 kg ha-1 P surplus, soil Olsen-P increased by 3.24-7.27 mg kg-1 in the order of Calcaric Cambisol (6.42 mg kg-1) > Eutric Cambisol (3.24 mg kg-1). In addition, the change in soil Olsen-P with a 100 kg P ha-1 surplus (soil Olsen-P efficiency) was

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Section: Introductionmentioning

confidence: 99%

The response of soil Olsen-P to the P budgets of three typical cropland soil types under long-term fertilization

Zhang

Wang

Wu³

et al. 2020

PLoS ONE

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“…The interactive effects of organic fertilizer and mineral N fertilizer was significant for moderately labile or stable P stocks, which indicated that P desorption and mineralization could be increased when other nutrients such as N and C are applied in sufficient amounts. In turn, P associated with OM could be transferred to deeper soil layers, causing increased P content in subsoil ( Medinski et al., 2018). Several other processes potentially could be involved, such as: Input of labile OM could facilitate the mobilization of P from stable P pools to labile P pools in the upper subsoil where surface application of organic and mineral fertilizers did not replenish P taken up by the crops.…”

Section: Discussionmentioning

confidence: 99%

“…Soil P sorption capacity decreased by long‐term excessive P fertilization ( Koch et al., 2018). When topsoil P sorption capacity declines due to continuous P fertilizer input, increasing leaching of P into deeper soil layers may occur ( Medinski et al., 2018). In addition, it was reported that higher P stocks in upper subsoil due to P leaching occurred in agricultural ( Kang et al., 2011), grassland ( Toor et al., 2005), and forest ecosystems ( Frossard et al., 1989).…”

Section: Discussionmentioning

confidence: 99%

Soil phosphorus cycling is modified by carbon and nitrogen fertilization in a long‐term field experiment

Wang

Bauke

Sperber

et al. 2021

J. Plant Nutr. Soil Sci.

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Background and aims: Phosphorus (P) is an essential element for crop growth. However, while links of P turnover in soils to carbon (C) and nitrogen (N) availability have been described, it remains to be clarified how combinations of fertilizer C and N additions affect stocks and cycling of distinct P fractions at different soil depths. The objectives of our study were (1) to assess how soil total P stocks are affected by organic amendments and N fertilization, (2) to evaluate how different soil P fractions respond to N fertilization, and (3) to verify whether N fertilization increases soil biological P cycling. Methods: We collected soil samples from a long‐term field experiment established in 1984 in Rauischholzhausen, Germany. The soil is a Haplic Luvisol and received either no organic fertilizer (NOF), farmyard manure (FYM) or a combination of organic and mineral N fertilizer (OMF). Each treatment additionally received three levels of mineral N: 0 kg ha−1 y−1 (N0), 100 kg ha−1 y−1 (N100), and 200 kg ha−1 y−1 (N200). The organic fertilizers were applied by a manure spreader and the N fertilizer (calcium ammonium nitrate) was applied in spring as top dressing by a plot fertilizer machine. We estimated stocks of P in fractions isolated by sequential P fractionation, and assessed the oxygen isotopic composition of 1 M HCl‐extractable phosphate (δ18OP). Results: We found that increased organic matter (OM) addition and mineral N inputs caused significant decreases in the stocks of resin‐ and NaHCO3‐extractable P in the topsoil (0–30 cm). Mineral N fertilization alone resulted in significant increases in stocks of resin‐, NaHCO3‐, and NaOH‐extractable P in the upper subsoil (30–50 cm). These changes occurred for both inorganic and organic P. The subsoil δ18OP values were closer to expected equilibrium values in soil fertilized with mineral N, indicative of more intensive biological P cycling than in the treatments without mineral N inputs. Conclusions: These findings suggest that long‐term OM and mineral N fertilization promotes topsoil P losses from labile fractions by crop uptake with an enrichment of these P forms in the subsoil, and an overall increase in biological P cycling in both top‐ and subsoil horizons upon N fertilization.

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“…Sun et al (2018) found that for the control, N and NK treatments, the Olsen-P concentrations declined by between 0.46 and 0.73 mg P•kg -1 soil•year -1 , whereas for the P-containing treatments the rates of increase ranged from 1.68 to 17.5 mg P•kg -1 soil•year -1 , depending on the P balance. According to Medinski et al (2018), crop cultivation without P fertilization in control and NK treatments resulted in negative P balances and reduction of available P below recommended levels. The observed phosphorus content in the plots without P addition (Check and NK) was slightly higher than the initial value of 15 mg•kg -1 soil.…”

Section: Content Of Available Nutrients In Soilmentioning

confidence: 99%

Soil Fertility in Response to Long-Term Fertilization under the Tobacco Monoculture System on Rendzic Leptosol in Bulgaria

Bozhinova

Hristeva

2021

pjss

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The effect of long-term mineral and organic-mineral fertilization on selected soil properties (pH, total humus and N, available phosphorus, potassium, calcium, magnesium, iron and manganese content) was studied in a stationary trail with tobacco monocropping system. The trial was established on Rendzic Leptosols in 1966. Five treatments were selected for this study, including control without fertilization (Check), nitrogen + phosphorus (NP), nitrogen + potassium (NK), nitrogen + phosphorus + potassium (NPK) and nitrogen + phosphorus + potassium + manure (NPK + manure). Soil samples at a depth of 0–25 cm were collected from all studied plots every year (2014, 2015 and 2016). The results indicated that maintaining humus content at the initial level is not possible through yearly mineral fertilizer application. Long-term mineral phosphorus fertilization increased 5.5–5.7 times available P2O5 in the soil compared to the initial level. The soil available K2O content in NK and NPK treatments increased, respectively, by 41.1% and 44.9% over the initial level. A remarkable increase in available phosphorus (25.5 times) and potassium (2.5 times) content in the soil compared with the initial level was found due to longterm NPK + manure fertilization. The NPK + manure treatment was found to be the most efficient management system in accumulating of total humus and N, available P2O5, K2O, Fe and Mn in a long-term fertilized Rendzic Leposol, under a tobacco monocropping system.

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Changes in soil phosphorus balance and phosphorus-use efficiency under long-term fertilization conducted on agriculturally used Chernozem in Germany

Cited by 23 publications

References 37 publications

The response of soil Olsen-P to the P budgets of three typical cropland soil types under long-term fertilization

The response of soil Olsen-P to the P budgets of three typical cropland soil types under long-term fertilization

Soil phosphorus cycling is modified by carbon and nitrogen fertilization in a long‐term field experiment

Soil Fertility in Response to Long-Term Fertilization under the Tobacco Monoculture System on Rendzic Leptosol in Bulgaria

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