Phosphorus amounts and distribution in a Saskatchewan soil after five years of swine and cattle manure application

Abstract

P. 2004. Phosphorus amounts and distribution in a Saskatchewan soil after five years of swine and cattle manure application. Can. J. Soil Sci. 84: 275-281. Repeated application of animal manures to Saskatchewan soils has led to interest in the fate and distribution of residual manure P in the soil. The concentrations of soil phosphorus in various inorganic and organic fractions were investigated in soils sampled from long-term field research plots (Dixon, SK) with a 5-yr history of annual application of liquid swine manure or solid cattle manure at low, medium and high rates. The soil type at the research site is a loamy textured Black Chernozem (Cudworth Association). Annual rates of manure application over the 5 yr were based on the N contents in the manures and were equivalent to 0 (control), and approximately 100 (low), 200 (medium) and 400 (high) kg total N ha -1 yr -1 as manure. For comparison, urea alone was also applied at rates of 50, 100 and 200 kg N ha -1 yr -1 . The total P concentration in the surface soil (0-15 cm) was significantly increased only by the addition of cattle manure and only in the medium and high rate treatments compared to the control. The most labile P fractions (Resin-P and NaHCO 3 -P) were also significantly increased with increasing rate of cattle manure addition. No significant increases in either soil total P or labile P fractions were observed in liquid swine manure treatments, which is attributed to the lower amount of P added with the swine manure treatment than the cattle manure treatment. Added P in the swine manure treatment more closely matched P removal in crop harvest compared to cattle manure treatment, which had more P added than was removed by the crop.

Soil chemical changes following manure application on irrigated alfalfa and rainfed timothy in southern Alberta

“…Even though there were no significant increases at the Lethbridge site, PO 4 -P content tended to be higher with manure application compared with the control. Qian et al (2004) reported that 5 yr of annual cattle manure application significantly increased labile P in soil, whereas hog manure had little effect. They found the N:P ratio in hog manure was high and the amount of P added was low compared with crop usage.…”

“…Research in southern Alberta has shown that manure application on irrigated and rainfed annual cropland, particularly when applied in excess of crop nutrient requirements, resulted in an accumulation of nitrogen (N) (Chang and Entz 1996), phosphorus (P) (Whalen and Chang 2001), and salts (Chang et al 1991). Researchers in other parts of Canada have shown similar accumulations of nutrients in soil from manure application (Zebarth et al 1999;Mooleki et al 2002;Royer et al 2003;Qian et al 2004). Manure type and methods of application may also influence the effects manure may have on soil properties under forage crops.…”

Measurement of alpha activity from leaves and roots of radish plant enhanced by fertilizers

“…There exist a linear relation between the content of P 2 O 5 and uranium as both forms of uranium [U(SO 4 ) 2 ] or [UO 2 (SO 4 )] in phosphoric acid (raw materials of fertilizers) is soluble in water (Khater & AL-Sewaidan, 2008). With increase in the amount of fertilizers in pots, increased the phosphorus content in soil (Al-Mohammadi & Al-Zubi, 2011; Chauhan et al, 2013;Qian, Schoenau, & Mooleki, 2004), hence uranium into the soil and plants. The alpha track densities from plants grown with use of any fertilizers were found higher than that of without fertilizers.…”

Contribution of Régis R. Simard to phosphorus research in agroecosystems and future prospects

“…The P recovery (sum of extracted P fractions divided by total digested P) averaged 99% (range of 95 to 102%) in organic soils (Parent et al 1992), and 89% (range of 86 to 96%) (Qian et al 2004), 95% (Tran and Ndayegamiye 1995), 98% (Tiessen et al 1983), and 102% (Roberts et al 1985;O'Halloran et al 1987a;Frizano et al 2002) in mineral soils. Coefficients of variation of P fractions ranged from 3 to 30% in mineral soils (Schoenau et al 1989;Richards et al 1995) and from 1 to 37% in organic soils (Schlichting and z R P 0C P /NPP, R S 0C S /NPP, R R 0C R /NPP; NPP is net primary productivity; C P , C S , and C R are DM pools for product, above-ground postharvest residues, and root tissues, respectively; R P , R S , and R R are DM fractions for product, above-ground post-harvest residues, and root tissues, respectively.…”