منابع مشابه
Ruzigrass affecting soil‐phosphorus availability
The objective of this work was to evaluate the effectiveness of ruzigrass (Urochloa ruziziensis) in enhancing soil‐P availability in areas fertilized with soluble or reactive rock phosphates. The area had been cropped for five years under no‐till, in a system involving soybean, triticale/black‐oat, and pearl millet. Previously to the five‐year cultivation period, corrective phosphorus fertiliza...
متن کاملPhosphorus Availability from Swine and Dairy Slurries
Compared to nitrogen (N), relatively little is known about the availability of phosphorus (P) from manure to crops. Many state extension bulletins recommend that 50-80% of total P in manure is available to crops the first year after application. This number is likely based on the fact that 35-90% of P in manures is in the inorganic form (Peperzak, et al., 1959; Barnett, 1994), which is immediat...
متن کاملPHOSPHORUS MANAGEMENT Plant Availability of Phosphorus in Swine Slurry and Cattle Feedlot Manure
that are in excess of the crop P removal. Excess P can accumulate in the soil and can increase P in runoff. Pote To utilize manure P for crop production, P release and plant availet al. (1996, 1999) found increased P loss in runoff as ability needs to be quantified. An incubation study was conducted to determine P availability from swine (Sus scrofa) and cattle (Bos tauthe soil P test increased...
متن کاملAvailability of Phosphorus to Phytoplankton and Its Implications for Phosphorus Management Strategies
One of the questions associated with the development of a cost-effective phosphorus management strategy for a waterbody concerns whether the control program should be based on total phosphorus or on algal available phosphorus entering the waterbody. Until now, eutrophication control programs have been based largely on the control of any form of phosphorus that was amenable to control, irrespect...
متن کاملSugar signaling in root responses to low phosphorus availability.
Over the last decade, major advances have been made in our understanding of how plants sense, signal, and respond to soil phosphorus (P) availability (Amtmann et al., 2006; White and Hammond, 2008; Nilsson et al., 2010; Yang and Finnegan, 2010; Vance, 2010; George et al., 2011). Previously, we have reviewed the potential for shoot-derived carbohydrate signals to initiate acclimatory responses i...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1978
ISSN: 0032-5791
DOI: 10.3382/ps.0571305