. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 206 (' \()i;.\] \ IISII AND GAME was more than six feet (Figure 2). This spacing corresponds to about 2,200 plants per acre, assuming a regular distribution in which plants are located at the corners of regular squares. Competitive effects increased sharply when the average distance to the nearest 10 plants was less than three feet. This spacing means stock- ing at 10,000 plants per acre. Almost the same story was told by all thre
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 206 (' \()i;.\] \ IISII AND GAME was more than six feet (Figure 2). This spacing corresponds to about 2,200 plants per acre, assuming a regular distribution in which plants are located at the corners of regular squares. Competitive effects increased sharply when the average distance to the nearest 10 plants was less than three feet. This spacing means stock- ing at 10,000 plants per acre. Almost the same story was told by all three dependent variables: condition, height, and diameter. Competition effects on plant condition and growth on the area prob- ably will become more apparent as time goes by. In 1959, stocking averaged 3,231 plants per acre As many as 8,000 plants per acre have resulted from some seedings on similar sites (Hubbard, et al., 1959). Competition is likely to become evident much earlier in the life of plants with such high stocking. BITTERBRUSH AND CRESTED WHEATGRASS SPACING Many land managers contend that both brush and grass are needed on a particular range. At certain times of the year grass is valuable deer feed (Leach, 1956), and it is the mainstay of cattle. The question is, what spacing between the brush and grass is best? We know that bitterbrush plants stand only a slim chance of survival if the seed is mixed and planted with grass seed. The grass competes directly with the young bitterbrush plants (Hubbard, 1956). The course to take is planting bitterbrush far enough away from the crested wheat- grass to avoid competition between the two species. How far away? This study showed that plants within two feet of crested wheatgrass had more dead branches than more distant ones (Figure 3). Height and diameter were not appreciably affected unless the plants were within about a foot of the grass. "i i 1 1 1 r PLANT CONDITION \6ead branches). HEIGHT DIAMETER Distance to Crested
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