Phosphorus Extraction from Soil Constituents Using Bray P-1, Mehlich-1 and Olsen Solutions
نویسندگان
چکیده
منابع مشابه
آزمون خاک فسفر: 1- ارزیابی چند عصاره‌گیر جهت تعیین فسفر قابل استفاده در گیاه یونجه
Hamadan province is one of the most important alfalfa (Medicago sativa) producing regions in Iran. However, little is known about P status in this region and no suitable extraction method has yet been introduced. This experiment was carried out to determine the available phosphorus by nine chemical extractants in some soils of the Hamadan region. The treatments consisted of 15 soils and 2 P lev...
متن کاملآزمون خاک فسفر: 1- ارزیابی چند عصاره‌گیر جهت تعیین فسفر قابل استفاده در گیاه یونجه
Hamadan province is one of the most important alfalfa (Medicago sativa) producing regions in Iran. However, little is known about P status in this region and no suitable extraction method has yet been introduced. This experiment was carried out to determine the available phosphorus by nine chemical extractants in some soils of the Hamadan region. The treatments consisted of 15 soils and 2 P lev...
متن کاملکارایی برآورد فسفر قابل استفاده لوبیا توسط برخی از عصاره‌گیرهای شیمیایی در خاک‌های آهکی تیمار‌شده با لجنفاضلاب شهری
The ability of different soil tests in predicting soil phosphorus (P) is important in soils amended with municipal sewage sludge. The objective of the present study was to evaluate several chemical extractants to estimate available P for bean growing in 10 calcareous soils amended with municipal sewage sludge from Chaharmahal-Va-Bakhtiari province under the greenhouse conditions. For this purpo...
متن کاملCharacterizing the phosphorus forms extracted from soil by the Mehlich III soil test
Phosphorus (P) can limit crop production in many soils, and soil testing is used to guide fertilizer recommendations. The Mehlich III (M3) soil test is widely used in North America, followed by colorimetric analysis for P, or by inductively coupled plasma-based spectrometry (ICP) for P and cations. However, differences have been observed in M3 P concentrations measured by these methods. Using 3...
متن کاملRelating soil phosphorus to dissolved phosphorus in runoff: a single extraction coefficient for water quality modeling.
Phosphorus transport from agricultural soils contributes to eutrophication of fresh waters. Computer modeling can help identify agricultural areas with high potential P transport. Most models use a constant extraction coefficient (i.e., the slope of the linear regression between filterable reactive phosphorus [FRP] in runoff and soil P) to predict dissolved P release from soil to runoff, yet it...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Tropical Soils
سال: 2017
ISSN: 2086-6682,0852-257X
DOI: 10.5400/jts.2017.v22i2.67-76