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Mineralizable Carbon, Nitrogen, and Water-Extractable Phosphorus Release from Stockpiled and Composted Manure and Manure-Amended Soils

Mineralizable Carbon, Nitrogen, and Water-Extractable Phosphorus Release from Stockpiled and Composted Manure and Manure-Amended Soils,10.2134/agronj2

Mineralizable Carbon, Nitrogen, and Water-Extractable Phosphorus Release from Stockpiled and Composted Manure and Manure-Amended Soils   (Citations: 13)
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Much of land-applied manure is surface-broadcast or incorporated to a shallow depth of fields under crop Dissolved N and P transfer to runoff water may increase with residue and conservation tillage management because of surface applications and shallow soil incorporation of animal manure. Information is needed regarding water-extractable nutrient release the need to conserve stored soil water for crop produc- during manure decomposition to quantify that potential transfer to tion (Unger and Parker, 1976; Dao and Nguyen, 1989; runoff in permanent pastures and conservation tillage systems. Re- Dao, 1993; Schwartz et al., 2002). Incorporating manure lease of net mineralizable C (MIN_C), net mineralizable N (MIN_N), using inversion or disk tillage may improve the effi- and dissolved reactive P (DRP) was determined in stockpiled and ciency of manure nutrient utilization by crops, but inten- composted cattle (Bos taurus) manure and manure-amended soils at sive tillage often eliminates the benefits associated with 4, 20, and 35C for 322 d at about 60% water-filled pore space. Flushes conservation tillage practices such as reduced soil water of CO2-C exceeding 100 mg kg 1 d 1 , inorganic N, and DRP were evaporation, erosion and runoff control, and soil C stor- released rapidly from both manures when incubated alone or as soil
Journal: Agronomy Journal - AGRON J , vol. 95, no. 2, 2003
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    • ...Composting has been proposed as a possible manure management tool for reducing the cost of transporting PL to nutrient deficient lands (Sims and Wolf, 1994) since composting significantly reduces the volume of waste materials (DeLuca and DeLuca, 1997) and stabilizes nutrients (Tiquia and Tam, 2002), thereby reducing their release rates (Dao, 1999; Dao and Cavigelli, 2003)...
    • ...The active pool, which has field mean residence times (MRT) of less than one year (Paul et al., 1999), represents that portion of soil C most readily mineralized and is strongly correlated with N mineralization and P release rates (Castellanos and Pratt, 1981; Gilmour et al., 1985; Hadas and Portnoy, 1994; Dao and Cavigelli, 2003)...
    • ...Soil C pool sizes and mineralization rate constants were determined using soil incubations (Paul et al., 2001; Dao and Cavigelli, 2003)...
    • ...First, CO2 flux densities were calculated and quantitatively described using a log-normal probability function as detailed in Dao and Cavigelli (2003)...
    • ...The strong relationships between observed and predicted CO2-C flux densities and cumulative CO2-C fluxes as a function of time show that the log-normal approach to analyzing CO2 flux density data developed by Dao and Cavigelli (2003) is robust for this data set and can predict the behavior of soil C under diverse management regimes...
    • ... have shown that N mineralization from raw manure-amended soil (Hadas et al., 1983; Bitzer and Sims, 1988) and composted manureamended soil (Hadas and Portnoy, 1994) follows a similar two-step or three-step (Gale and Gilmour, 1986) process and that C mineralization rates are correlated with N mineralization and P release rates for these two organic matter pools (Castellanos and Pratt, 1981; Gilmour et al., 1985; Hadas and Portnoy, 1994; Dao and ...
    • ...Thus, finding a difference in the rate constants for soils from the PL and the MF systems but not between the CPL and MF systems reflects differences in the C quality of the PL and CPL materials and is consistent with the general finding that composted manures release nutrients (and carbon) slower than raw manures (Hadas and Portnoy, 1994; Dao, 1999; Dao and Cavigelli, 2003; Evanylo et al., 2008)...

    Michel A. Cavigelliet al. Residual impact of raw and composted poultry litter on soil carbon poo...

    • ...Release of manure and soil P over time were previously observed to be lognormally distributed during a yearlong incubation study at temperatures between 4 and 30 'C (Dao and Cavigelli, 2003)...
    • ...However, it is not surprising that the release of P to runoff followed a lognormal distribution, because we have observed in previous studies that WEP desorption from manure and soils has a pronounced skewed pattern of the lognormal density function (Dao and Cavigelli, 2003)...

    V. S. Greenet al. BIOACTIVE PHOSPHORUS LOSS IN SIMULATED RUNOFF FROM A PHOSPHORUS-ENRICH...

    • ...Animal manure has long been used as a source of plant nutrients and organic matter to improve fertility conditions of agricultural lands (Dao and Cavigelli, 2003)...

    G. A. Johnsonet al. Topdressing Turf with Composted Manure Improves Soil Quality and Prote...

    • ...Dao and Cavigelli (2003) observed that WEP release flux densities from stockpiled and composted manure were log‐normally distributed...

    Thanh H. Daoet al. Wastewater Chemistry and Fractionation of Bioactive Phosphorus in Dair...

    • ...Patterns of manure P release have been quantitatively described by a lognormal distribution function, i.e., the released P concentration profile was shaped as an asymmetric peak, skewed to the left (Dao 1999; Dao and Cavigelli, 2003; Dao et al. 2008)...
    • ...Mineralization of labile C fractions and P-containing organic matter results in an enrichment of P in the stockpiled manure (Hao et al. 2001; Dao and Cavigelli 2003)...
    • ...Dao and Cavigelli (2003) observed initial large flushes of CO2‐C, exceeding 100 mg kg � 1 day � 1 , in stockpiled and composted cattle manure and...
    • ...lines the best fit (adapted from Dao and Cavigelli 2003) 16 Effects of Manure Management on Phosphorus Biotransformations and Losses 419...

    Thanh H. Daoet al. Effects of Manure Management on Phosphorus Biotransformations and Loss...

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