Web11 nov. 2015 · The separating soil test values for the “active” test were 25 pounds P per acre on acid soils, 50 pounds P per acre on soils with pH above 7.5 and 80 pounds K per acre. Even when the soil test was high, some fertilizer was recommended because even in the “high-test” soils it was usual for an economical response to occur when a balanced ... WebMeq/100g stands for milliequivalents per 100 grams of soil. 1 meq/100 = 1 cmol(+)/kg, where cmol(+)/kg is the abbreviation for centimoles per kilogram. These units are used to report the cation exchange capacity (CEC) of the soil and the amounts of exchangeable cations that can occupy the exchange sites (potassium, calcium, magnesium, sodium, …
Soil Sampling for Precision Agriculture
WebMore on Iowa's Remarkable Soils: Sometimes called “black gold,” Iowa’s deep, rich soils are a treasure that formed over thousands of years under the very best of the world’s grasslands—the tallgrass prairie. Web27 feb. 2012 · A total of 860 soil samples were collected. Sampling at 2.5-acre transects yielded results for pH, P, K and organic matter at an average reliability of 26.7. In … fluticasone propionate with tylenol
Soil Testing and Soil Testing Labs University of Maryland …
WebVariability of an 80 Acre Field Based on Soil Tests of 40 Individual Soil Cores. Soil Test Values ; Analysis: Range: Average: pH: 4.9-6.3: 5.6: Buffer Index: 7.1-7.4: 7.3: Nitrogen: 1-34: 11: Phosphorus: 23-114: 36: ... By … WebTITLE: SOIL SAMPLING CATEGORY: ENV 3.13 REVISED: August 1997 5. Potential Problems Potential problems with soil sampling include cross-contamination of … Web14 jun. 2016 · $190 ÷ 18.3 acres per ton = $10.38 per acre. Ammonium Nitrate @ $240/ton $240 ÷ 13.6 = $17.65 per acre. Ammonium Sulfate @ $167/ton $167 ÷ 8.4 = $19.88 per acre. But material costs are only part of the total cost of applying the fertilizer. Calculate the spreading cost. Your cost may vary. fluticasone-salmeterol 500-50 mcg/act inhaler