2020
DOI: 10.1590/1678-4324-solo-2020190536
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Environmental Soil Phosphorus Threshold under No-Tillage and Swine Manure Application

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Cited by 3 publications
(2 citation statements)
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“…Both mineral and organic fertilizer improved the nutrient contents of P and soil, but plots receiving organic waste were more fertile than plots with MF (Table experiment started with soil containing 23 mg kg −1 of P-Mehlich-1 in 2004, and years repeating the treatments, the values of available P-mehlich-1 varied from 8.7 fertilized plots, to 41.4 in mineral fertilizer-plots and to 93.1 mg kg −1 of P in PL fertilized plots (Table 2). The improvement of P contents of soil is positive for crop particularly in tropical soils where P is one of the limiting nutrients of crop yields Except for the non-fertilized, all treatments have presented very high availability o is, >40 mg kg −1 , according to the Commission of Chemistry and Soil Fertility of RS/ but they were approaching the environmental risk thresholds [37][38][39]. The P ad addition to meeting the demand of crops, partly remains on the soil and is conside 'P legacy' [36].…”
Section: Discussionmentioning
confidence: 99%
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“…Both mineral and organic fertilizer improved the nutrient contents of P and soil, but plots receiving organic waste were more fertile than plots with MF (Table experiment started with soil containing 23 mg kg −1 of P-Mehlich-1 in 2004, and years repeating the treatments, the values of available P-mehlich-1 varied from 8.7 fertilized plots, to 41.4 in mineral fertilizer-plots and to 93.1 mg kg −1 of P in PL fertilized plots (Table 2). The improvement of P contents of soil is positive for crop particularly in tropical soils where P is one of the limiting nutrients of crop yields Except for the non-fertilized, all treatments have presented very high availability o is, >40 mg kg −1 , according to the Commission of Chemistry and Soil Fertility of RS/ but they were approaching the environmental risk thresholds [37][38][39]. The P ad addition to meeting the demand of crops, partly remains on the soil and is conside 'P legacy' [36].…”
Section: Discussionmentioning
confidence: 99%
“…The improvement of P contents of soil is positive for crop growth, particularly in tropical soils where P is one of the limiting nutrients of crop yields [35,36]. Except for the non-fertilized, all treatments have presented very high availability of P, that is, >40 mg kg −1 , according to the Commission of Chemistry and Soil Fertility of RS/SC [27], but they were approaching the environmental risk thresholds [37][38][39]. The P added, in addition to meeting the demand of crops, partly remains on the soil and is considered the 'P legacy' [36].…”
Section: Discussionmentioning
confidence: 99%