Alsike clover has special adaptation for being sown along with timothy and red top on slough soils, and soils made up of rich deposit. It matures about the same time as these grasses. They support the slender stems of the alsike, and in doing so prevent lodging more or less. This greatly improves the quality of the hay. The more numerous the plants in those mixtures, the finer also will be the quality of the hay. If but two varieties are wanted in the mixture, ordinarily these two should be alsike clover and timothy. Both furnish hay of excellent quality; hence, when the proportion of alsike is not too large, such hay sells readily to dairymen who have to purchase fodder.
Although this clover does not mature until three to four weeks later than the medium red, nevertheless, it may be well to add the latter to the timothy and alsike clover mixture. When these are thus sown in due balance, the first cutting will be mainly red clover, after which there will be but little of the red present. But the medium red clover will add much to the pasture after the first cutting for hay. Subsequently, the hay crop will usually consist of alsike and timothy. Alsike clover along with timothy may also be sown with mammoth clover, since the two mature about the same time. But the mammoth variety will monopolize the ground while the first hay crop is being produced. The advantage from sowing the seed thus lies chiefly in prolonging the period of clover production along with timothy grown chiefly for hay. It is not wise, usually, to sow alsike clover alone for hay, owing to its tendency to lodge. In the South it is frequently sown with red top and orchard grass, especially the latter. It fills in the spaces between the plants in the orchard grass, and in so doing adds much to the hay or to the pasture.
There may be conditions in which it would be advisable to sow alsike clover alone, as when it is wanted for seed, and subsequently for pasture. But ordinarily to provide pasture, it is better to sow it along with some other grass or clover, or with a number of these. It greatly improves a timothy pasture in the upland or in the valley. It has also been used with much advantage in strengthening alfalfa pastures for horses in winter in certain of the Rocky Mountain valleys. It would probably be correct to say that with the area of adaptation for this plant, no kind of pasture can be grown on reasonably moist land that would not be benefited by having alsike in it. Among the clovers it has, relatively, high adaptation for permanent pastures, because of its enduring character.
The seeds of alsike clover are small. They are considered to be less than half the size of those of medium red clover, consequently, the amounts of seed are relatively much less. When alsike clover is sown alone and for seed, from 3 to 5 pounds of seed should suffice per acre, according to the soil conditions. Four pounds are frequently sown. In the various mixtures given above, the amounts of seed will vary with local and other conditions, but the following amounts may be given as averages: Alsike and timothy, 4 and 6 pounds, respectively, per acre; alsike, timothy and red top, 3, 4 and 3 pounds; alsike, timothy and red clover, 3, 4 and 3 pounds; alsike, timothy and mammoth clover, 3, 4 and 3 pounds. When sown with other grasses for pasture, it would not be possible to give the amounts to sow that would best meet the needs of the grower under all conditions. But it may be said that 1 to 2 pounds of alsike seed per acre, sown under almost any circumstances in moist soils and within the alsike clover area, will be a good investment when laying down pastures of any considerable permanency.
This clover is also sometimes added to the seed sown in making lawns, more especially on farms where the lawn cannot be given that close attention which is necessary to keep it in the most presentable form. Because of its permanence, it is helpful in giving variety to the sward, and when mown but two or three times in the season, as is frequently the case with such lawns, it provides considerable bloom in the same, which is very attractive. The amount of seed to use on these lawns may vary to suit the desires of the owner. It is not usual, however, to sow in these more than maximum amounts for field crops. At the rate of 3 to 4 pounds of seed per acre should be ample.
Pasturing.—Alsike clover has by some authorities been assigned to a high place as a pasture plant. For such a use it has no little merit, but in the judgment of the author it is not nearly equal to medium red clover as a pasture plant, under average conditions, since it does not grow so well, relatively, on average upland soils, and because the aftermath is usually light, after the crop has been cut for hay or for seed. Nor is it thought to be relished quite as highly by stock as the medium red clover. Nevertheless, domestic animals eat it freely, and under suitable conditions it will furnish for them a considerable amount of grazing. This feature has been finely illustrated by an experiment in grazing conducted at the Agricultural Experiment Station of Montana, on irrigated land, at Bozeman, in the Gallatin valley. Full particulars relating to this unique experiment are given in Bulletin No. 31, issued by the afore-mentioned station. In the summer of 1900, 18 cattle, one and two years old, were pastured on 5.04 acres of alsike clover for 102 days, beginning with June 9th. The increase in the weight obtained from the pasture in the time stated was 4560 pounds. This gain was valued at the very moderate price of 4 cents per pound live weight; hence, the net return per acre for the pasture for the season was $36.19. It would scarcely be possible under any conditions, howsoever favorable, to obtain such results without irrigation.
Ordinarily, the results from pasturing alsike clover will be more satisfactory when one or two other plants are grown along with it, as, for instance, medium red clover or medium red clover and orchard grass, since both of these plants tend to prolong the period of grazing. In slough lands, red top and timothy add considerably to the value of the grazing. When grazing alsike clover, much more pasture will be obtained if it can be allowed to make a good start in the spring, and if it is then kept grazed so short that the plants do not come into flower. Such treatment tends very much to prolong the period of grazing for the season. Should the grazing be so uneven as to admit of certain areas in the pasture pushing on into the flower stage, the mower may sometimes be profitably used to prevent such a result. Weeds should also be kept from going to seed in the pastures by using the mower or the scythe, or both. Nor should the fact be lost sight of that the tendency to produce bloat in alsike clover is much the same as in medium red clover.
Harvesting for Hay.—Alsike clover is ready to harvest for hay when the plants are just beginning to pass beyond the meridian of full bloom. Some of the first blossoms will then have turned brown and some of the smaller ones will still be deepening their tints, since the season of bloom is about the same as for timothy, and since alsike for hay is more commonly grown with timothy than with any other grass, both may be cut when at their best, especially when intended for cows and sheep. But when the hay is intended for horses, it should stand a few days longer than the stage indicated above, in order to have the timothy in the condition best suited to feeding horses. But the alsike, in the meantime, would lose something in digestibility.
If grown alone for hay, the process of harvesting would be much the same as in harvesting medium red clover. (See [page 95].) But since the stems of alsike clover are finer than those of the medium red, less time will suffice for curing it. It will also cure more quickly along with some other grass than if alone, since it does not then lie so closely in the winrow or in the cock. Grasses, as a rule, cure more quickly than clovers, and this also has a bearing on hastening curing in clover when the two are grown together; and also in lessening the degree of the fermentation after the crop has been stored. Ordinarily, when the weather is bright, alsike clover along with timothy may be cut in the forenoon, tedded once or twice soon after cutting, raked into small winrows the same evening and stored away the following afternoon. When thus managed, the hay loader may be used in lifting the hay from the winrows. Alsike clover growing alone could not be cured thus quickly. Nor would it be wise in showery weather to try and cure the crop without putting it into cocks, whether grown alone or with some other crop. When properly cured, the heads retain much of their bloom and the stems much of their greenness.
The yields of hay vary greatly with the soil. On dry, sandy uplands the yields of cured hay may not exceed ½ ton, while on rich loam soils it may exceed 3 tons. Ordinarily, on good soils a combined crop of alsike clover should yield from 1½ to 2 tons per acre of very excellent hay. Some authorities speak of getting two cuttings per year, but this is not usual. Under quite favorable conditions it would be possible to get two cuttings for soiling uses, providing the first was taken when the plants were coming into bloom. Usually, the growth of the aftermath, when the hay has been removed, is very moderate.