Yields and quality were compared on young bearing ‘Bearss’ lemon (Citrus limon L.) trees grown with 3 rates of N and K and 2 levels of soil moisture over a 4-year period. Increased rates of N application increased fruit production, incidence of fruit with scab, and green fruit; and decreased acid content of juice. Potassium applications increased the acid content of juice. Irrigation increased fruit size and decreased the number of green fruit after curing. A leaf N content of 2.2 to 2.6% is suggested for optimum fruit production for ‘Bearss’ lemon under Florida conditions.

As mango leaves increased in age, lower P and K contents were found, while Ca content was higher. The basal leaf was lower in N and Ca but higher in P and K contents when compared with the terminal leaf of the same shoots. Only small differences were observed when leaves were compared from fruiting and nonfruiting shoots. The practical application of data in sampling mango leaves is discussed.

This chapter examines how the millions of campers who swarmed public facilities around the country led to their rapid deterioration. Lakes, woods, seashores, and deserts within a few hours' drive generally satisfied these campers' desire to escape their everyday world, but some found these sites' ability to renew and transform to be limited. Moreover, when a camper sought greater restoration, he had to travel to spaces more sacred, but to do so was geographically challenging, because most Americans lived in the East, and the most sacred and desirable destinations—Yellowstone, Yosemite, and the other national parks—were in the distant West. Into this breach stepped E. P. Meinecke, who developed the auto campground plan that was quickly adopted by public agencies around the country and dominates car campgrounds to this day.