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MeetingMeeting documentStatus of Global Symposia: for information and decision (GSPPA: IX/2021/6) Global Soil Partnership Plenary Assembly - Ninth session 2021
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No results found.The Global Soil Partnership Plenary Assembly constitutes the decision making body of the Global Soil Partnership. It embraces all the GSP partners in a yearly meeting to review and prioritize GSP actions while facilitating a balanced regional decision-making process. This document covers item 6 of the agenda. -
MeetingMeeting documentStatus on the organization of global symposia - GSPPA: XI/2023/7
Global Soil Partnership Plenary Assembly - eleventh session
2023Also available in:
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MeetingMeeting documentReport on the financial status of the Global Soil Partnership (GSPPA: XII/2024/5)
Global Soil Partnership Plenary Assembly - Twelfth session
2024Also available in:
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Brochure, flyer, fact-sheetBrochureStandard operating procedure for quasi total elements in soil by acid digestion, including heavy metals 2023
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This method is applicable to the determination of trace element metals (MTE) as well as metalloids in soils by acid digestion using aqua regia. -
DocumentOther documentTerms of Reference of the National Focal Points of the Global Soil Partnership (GSP)
Terms of Reference of the National Focal Points of the Global Soil Partnership (GSP)
2024Also available in:
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BookletCorporate general interestStandard operating procedure for soil available phosphorus - Bray I and Bray II method 2021
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No results found.P-Bray 1 and P-Bray 2 methods are normally limited to acid soils with water pH values less than 6.8. The P-Bray 1 Method removes a fraction of the “adsorbed” phosphorus (Al-P, Fe-P, Mn-P and Ca-P but less efficient) while the P-Bray 2 Method is best suited to acid soils where rock phosphate has been the primary P fertilizer source and/or the major portion of P exists in the soil in various forms of calcium phosphate. Bray extractants should not be used on alkaline soils because the acid tends to be neutralized and/or excessive calcium phosphates may be extracted, giving a false high test for available P.