What type of analysis gives the percentage of P2O5 in fertilizers?

Phosphorus analysis is the correct answer because it specifically measures the amount of phosphorus in fertilizers, which is expressed as P2O5 (phosphorus pentoxide) for the purpose of nutrient management. Farmers and agricultural professionals utilize this analysis to determine how much phosphorus is available in the fertilizer they are using. The percentage of P2O5 indicates the relative strength of the fertilizer in providing this essential nutrient, which is critical for plant growth and development.

Other analysis types mentioned in the options focus on different nutrients. For instance, potassium analysis measures the potassium content, soil texture analysis assesses the composition of soil particles, and nitrogen analysis evaluates the nitrogen levels present in fertilizers. Each of these analyses is important but serves a distinct purpose in nutrient management, making phosphorus analysis particularly relevant for understanding the contributions of phosphorus to soil fertility and crop production.