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Figure 3. A multi-year Purdue study found that the highest alfalfa yields were recorded when fertilizer rates were 50 pounds of P 2 O 5 per acre per year, and 200 pounds or more of K 2 O per acre per year.igure 3. A multi-year Purdue study found that the highest alfalfa yields were recorded when fertilizer rates were 50 pounds of P 2 O 5 per acre per year, and 200 pounds or more of K 2 O per acre per year.
easy to plant, almost like grass seed, barely cover the seeds with soil, or cover with straw. Plant in spring or fall, about 1/4 deep, soil pH recommended about 6.6 to 7.2. This alfalfa is pre-inoculated. For spreading the seed is recommended 12 or more pounds an acre.