You can read more about it here. Kopi Luwak is the most expensive coffee in the world! Kopi Luwak was, to some extent, popularised by the entertaining and yet poignant movie, 'The Bucket List', starring Jack Nicholson and Morgan Freeman. http://www.imdb.com/title/tt0825... 299 Views
Your nitrogen (N) fertilizer recommendation is 200 pounds per acre. Using Table 2, you would go down the left-most column to the row with 6-foot typical bed spacing. Go across that row until you come to the column with the recommended fertilizer rate of 100 pounds per acre.
Crisphead lettuce is a moderately expensive crop to produce with costs for production, harvesting, and marketing averaging $3,400 per acre (Smith and Taylor, 1991). Fertilizer accounts for about 10% of the total preharvest costs for lettuce (Smith and Taylor, 1991). During the last 15 years, considerable research has been conducted on lettuce fertilization on the organic soils of Florida with emphasis on the EAA. Optimum fertilization is important for maximizing yields and quality and for minimizing negative impacts to the environment resulting from overfertilization.