Whether it is practicable to establish good permanent pastures without stumping and plowing the land is yet an unsolved problem. About every Florida settlement where the town cattle graze, there is good pasture, commonly carpet grass. You will find just this on the outskirts of Jacksonville. Such pasturage has been established by heavy continuous grazing, under which conditions the broom sedge and wire grass are exterminated, while the creeping carpet grass comes in and persists. It may be that the manure of the animals is also a factor, and there can scarcely be a question that the trampling helps. As an example of this kind occurs about nearly every Florida town, it would seem as if it could be duplicated on cattle ranches. I have suggested to several cattlemen that it is worth trying on a scale by three methods: (1) Simply burning the native grass in winter; (2) burning, followed by disking or harrowing; and (3) plowing among the stumps.
If possible, carpet grass seed should be scattered on each area, and in all cases close grazing should be practiced. Unfortunately, carpet grass seed cannot be secured commercially, except in small quantities at high prices, but it is easy to cut the mature carpet grass in fall from a pasture and cure the hay. The carpet grass can then be sown simply by scattering the hay. Whether any of these schemes will work out satisfactorily still remains to be determined.
As to Natal grass, I have already mentioned that this succeeds better on the poorer and drier pine lands than any other grass yet introduced. Thus far it has been exploited purely as a grass for market hay. On this basis many hundred acres were planted in Lake County and elsewhere. Grass culture purely for market hay is a very precarious proposition. The proper agricultural economy is grass for live stock, selling only the surplus to the market. Notwithstanding the very large acreage planted to Natal, I have been quite unable to secure satisfactory data as to its value for pasturage, measured in carrying capacity and satisfactory gains. It seems to me, from the slender data I have been able to secure, fairly probable that Natal will prove a valuable grass for combined hay and pasture on the soils to which it is so well adapted, but of course it can hardly be expected to yield enough to justify the extravagant prices paid for land planted to Natal.
Prairie Lands.
On the prairies of Florida there is much better natural pasturage than in the piney woods, and, indeed, it is on the prairies that the old type of cattle industry reached its highest development. The prairies are in reality wet meadows. Their grass cover is due to water relations, most of them being periodically overflowed—conditions that are inimical to pines and palmettos. On the other hand, the period of overflow is too brief to meet the conditions necessary for cypress and other swamp trees. These prairies stretch from the border of the pine woods and palmettos on relatively high ground to permanently wet swamps. The best natural pasturage consists of various species of paspalum and related flat-leaved grasses on the soils fairly moist during a large part of the year; and maiden cane on still moister land, or even in shallow water. Generally speaking, the moisture relations of the more extensive prairies are nearly ideal for continuous pasturage in the varying seasons. There is grave danger in any extensive drainage operations, as palmettos and pines will quickly invade such drained land, and thus destroy the grass.
For improved pasture on these lands, particularly on those reasonably moist, Para grass offers great possibilities. The remarkably rapid growth and high yield of this grass, combined with its palatability and nutritiousness, make it of prime importance in connection with better live stock. Para succeeds well also on the better uplands, but, generally speaking, it is a grass for moist lands. The farther south, the more valuable it is, as after frost it is of little value.
Another grass that is likely to be very valuable on the prairies, and, indeed, on the flatwoods and better uplands, is paspalum dilatatum, native to Argentina. This is perhaps the best of the paspalums, and it is now widespread in the Southern States. Unfortunately, with us the seeds are largely destroyed by a fungus, but good commercial seed is obtainable in quantity from Australia.
Muck Lands.
On the muck lands the problem of pasturage is easy. At least four grasses, namely, Para, Carib, Rhodes and Bermuda, especially Giant Bermuda, yield wonderfully. The enormous area of muck lands in Florida, especially in the Everglades, can, it would seem, be utilized only with the aid of livestock. While there may be some fairly difficult problems to solve in handling live stock on muck soils, especially in the wet season, there can be little doubt that grass and live stock will insure the permanency of these lands. Under continuous cultivation there is a constant shrinkage in muck soils, but with grass and live stock this is nearly, if not quite, counterbalanced.
Carib grass on muck soils is, from limited data, superior to Para grass both in yield and quality. On other types of soil Para will outyield Carib. Rhodes grass does wonderfully on muck soil, and, indeed, on most rich soils. Giant Bermuda is far coarser and more vigorous than ordinary Bermuda. It will succeed wherever ordinary Bermuda will grow, and, in addition, seems much better able to withstand flooding.