LY/T 2749-2016 Formulated fertilization technical for fast-growing eucalypts

LY/T 1261 LY/T 1262 LY/T 1270 GB 15063-2001 Compound fertilizer(Complex fertilizer) GB/T 15063-2009 Compound fertilizer (Complex fertilizer) GB/T 15063-2020 Compound fertilizer GB 18877-2002 Organic-inorganic compound fertilizers GB/T 18877-2009 Organic-inorganic compound fertilizer GB/T 18877-2020 Organic inorganic compound fertilizer GB/T 23348-2009 Slow release fertilizer LY/T 1775-2008 Technical code for production of eucalyptus fast-growing and high-yield plantation LY/T 1228-2015 Nitrogen determination methods of forest soils LY/T 1232-2015 Phosphorus determination methods of forest soils LY/T 1234-2015 Potassium determination methods of forest soils LY/T 1258-1999 Determination of Available Boron in Forest Soil LY/T 1210-1999 Field sampling and preparation of forest soil samples LY/T 1211-1999 Field sampling and preparation of forest plant and forest floor samples LY/T 1228-1999 Determination of total nitrogen in forest soil LY/T 1229-1999 Determination of hydrolyzable nitrogen in forest soil LY/T 1232-1999 Determination of total phosphorus in forest soil LY/T 1233-1999 Determination of available phosphorus in forest soil LY/T 1234-1999 Determination of total potassium in forest soil LY/T 1236-1999 Determination of available potassium in forest soil LY/T 1237-1999 Determination of organic matter in forest soil and calculation of carbon-nitrogen ratio LY/T 1239-1999 Determination of pH value in forest soil LY/T 1243-1999 Determination of cation exchange capacity in forest soil LY/T 1245-1999 Determination of exchangeable calcium and magnesium in forest soil LY/T 1260-1999 Determination of available copper in forest soil LY/T 1269-1999 Determination of total nitrogen in forest plant and forest floor LY/T 1271-1999 Determination of total nitrogen,phosphorus,potassium,sodium,calcium,magnesium in forest plant and forest floor LY/T 1273-1999 Determination of total boron in forest plant and forest floor