. Annual forage crops for the southern interior of British Columbia. Forage plants; Plantes fourragères; Plantes annuelles. A field of forage corn that yielded about 56 tonnes of si/age per hectare (25 tons of si/age per acre). Optimum temperature for corn growth is approximately 30 C (85 F). Higher temperatures tend to slow growth. Hybrids that use the full growing season put more energy or total digestible nutrients (TDN) into the silo. Late maturing hybrids give the best yield in areas with a high number of heat units. (Earlier maturing hybrids should be used in these areas if seeding is de
. Annual forage crops for the southern interior of British Columbia. Forage plants; Plantes fourragères; Plantes annuelles. A field of forage corn that yielded about 56 tonnes of si/age per hectare (25 tons of si/age per acre). Optimum temperature for corn growth is approximately 30 C (85 F). Higher temperatures tend to slow growth. Hybrids that use the full growing season put more energy or total digestible nutrients (TDN) into the silo. Late maturing hybrids give the best yield in areas with a high number of heat units. (Earlier maturing hybrids should be used in these areas if seeding is delayed because of cold or wet weather.) In lower heat unit areas, only medium or early hybrids should be used because late hybrids will produce a forage high in moisture and low in energy. Seedbed preparation and fertilization In areas suitable for corn production, 45—65 t/ha (20—30 tons/ac) is a realistic goal for silage production if good techniques for growing corn are followed. Prepare a fine, firm seedbed. Have a soil test done to determine what fertilizer is needed. (Send soil samples to the British Columbia Department of Agriculture, Soil Testing Laboratory, Court House, Kelowna, ) Phosphorus, if required, should be banded in with the corn planter. For maximum yield, fertilize with nitrogen at 170 kg/ha (150 Ib/ac) in two applications, one-third broadcast with a fertilizer spreader just prior to or after seeding, and two-thirds banded on each side of the row when the corn is 25—40 cm (10—16 in.) high. Although large amounts of potassium are taken out of the soil by a corn silage crop, few soils in the area need added potassium. Seeding Plant heavily and early, and place the seeds evenly in rows. Tests at the Research Station, Kamloops (Table 2), show that early planting gives maximum yields of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustr
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