c. Seeding practices.
(1) All legume seed should be inoculated with the appropriate strain of root-nodule bacteria, just before planting. Seed suppliers normally are prepared to supply bacterial cultures for the species of legume seed being sold, together with instructions for treating the seed. Treated legume seed should be planted promptly. Where burning has been done, planting in the fresh ashes may provide sufficient coverage if rains occur soon thereafter. In more humid regions, seeding should be accompanied by light tillage so that seed will be covered by the next rain.
(2) A legume-grass mixture of species with compatible growth habits, adapted to similar rainfall zones, should be formulated (see appendix tables), and seed supplies brought to hand. Planting time is exceedingly important. The most favorable time is just at the beginning of a season when rains normally occur, to foster prompt germination and rapid seedling establishment. Small seeded species require shallow planting. Larger seeded legume species require seed placement at 1 to 2 cm. depths to insure germination and seedling survival.
Since virtually all seeding of rangelands and other permanent grasslands in all soil and climatic zones involves non-arable lands, any tillage in conjunction with planting must be achieved through special means that are feasible under local conditions. Therefore, every effort should be made to take advantage of seedings made when moisture is adequate, on fresh ashes after burning, or any other means of placing seed so that germination and seedling establishment will be fostered. Legume seedlings are more sensitive than grasses to moisture deficiencies; and practices that insure legume establishment will almost surely be adequate for the grasses in the mixture. Should weather be unfavorable for the legumes, the grasses will probably survive.