Phosphorus Sources and Management in Organic Production Systems
نویسندگان
چکیده
منابع مشابه
Organic Soil Amendments for Sustainable Agriculture: Organic Sources of Nitrogen, Phosphorus, and Potassium
Sustainable agriculture, which is characterized by farming profitably while minimizing damage to the environment, is not easy to practice. “Conventional” agriculture in the USA is commonly considered to involve practices that have potential to damage the environment. These include tilling the soil excessively, overapplying readily soluble inorganic fertilizers (“chemical fertilizers”), and over...
متن کاملDetermination of phosphorus source coefficients for organic phosphorus sources: laboratory studies.
Phosphorus losses in runoff from application of manures and biosolids to agricultural land are implicated in the degradation of water quality in the Chesapeake and Delaware Inland Bays. We conducted an incubation study to determine the relative P solubility and bioavailability, referred to as P source coefficients (PSCs), for organic P sources, which are typically land-applied in the Mid-Atlant...
متن کاملPHOSPHORUS MANAGEMENT Ligands and Phytase Hydrolysis of Organic Phosphorus in Soils Amended with Dairy Manure
tion of IP6 and other IPs in dairy manure are attributed to the protective effect of IP6 complexation with polyvaInformation about orthophosphate and organic phosphorus (P) lent cations that reduces dephosphorylation. As a result, desorption in soil amended with animal manure is needed because a build-up of P following repeated manure applications poses risks of substantial amounts of dietary I...
متن کاملtillage and phosphorus management effects on stratification of phosphorus in a grain corn production system
introduction phosphorus (p) is an essential element in crop nutrition, which can be growth limiting or an environmental contaminant, if present in excess. on the other hand, tillage practices have a direct effect on behavior and availability of soil p. since, application of different tillage methods lead to different patterns of soil phosphorus distribution, hence p fertilizer needs and p avail...
متن کاملManagement practice effects on phosphorus losses in runoff in corn production systems.
Phosphorus losses in runoff from cropland can contribute to nonpoint-source pollution of surface waters. Management practices in corn (Zea mays L.) production systems may influence P losses. Field experiments with treatments including differing soil test P levels, tillage and manure application combinations, and manure and biosolids application histories were used to assess these management pra...
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ژورنال
عنوان ژورنال: HortTechnology
سال: 2007
ISSN: 1063-0198,1943-7714
DOI: 10.21273/horttech.17.4.442