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Publication Date

1981

Description

Grass-legume mixtures are of great interest, especially in central and northern Appennine regions with a summer dry season .. Birdsfoot trefoil (Lotus comiculatus L.) cv. Franco and tall fescue (Festuca anmdinaceaSchreb.) cv. Manade were grown in mixture and in pure stand at the experimental farm of the Institute. Our objectives were to determine the seeding rates in the mixtures and the most suitable method of sowing. The two species were seeded in mixture and alone to 20 seeding treatments: (a) 16 mixtures in alternate rows 12 cm apart, in factorial combinations of four seeding rates (5-10-12-15 kg/ha of birdsfoot trefoil and 5-7-10-15 kg/ha of tall fescue); (b) 1 blended mixture at the highest seeding rate (15 kg/ha) in rows 12 cm apart; and (c) 3 pure stands, 1 ofbirdsfoot trefoil (15 kg/ha) and 2 of tall fescue (15 and 30 kg/ha), in rows 12 cm apart. The experimental layout was a randomized block with 4 replicates giving 80 experimental 2.4-m2 plots. The trial lasted 5 years (1975-1979) without ir­rigation. The harvest of each cut was dried (105°C) and weighed; yields of mixtures were separated into their components. The analysis of collected data showed that (1) all the mixtures yielded significantly more than the pure stands; (2) blend was significantly superior to seeding in alternate rows; and (3) total percentage of birdsfoot trefoil on a dry-matter basis was 24% and 26 % in the blends and alternate rows, respectively. The mixtures of birdsfoot trefoil and tall fescue were noteworthy because of their high yields and good legume-grass balance. The two species together yielded a bulk of good fodder and stability of production during the growing season.

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Simple Mixtures for Dry Mountain Regions: Relations Between Tall Fescue and Birdsfoot Trefoil During Five Years

Grass-legume mixtures are of great interest, especially in central and northern Appennine regions with a summer dry season .. Birdsfoot trefoil (Lotus comiculatus L.) cv. Franco and tall fescue (Festuca anmdinaceaSchreb.) cv. Manade were grown in mixture and in pure stand at the experimental farm of the Institute. Our objectives were to determine the seeding rates in the mixtures and the most suitable method of sowing. The two species were seeded in mixture and alone to 20 seeding treatments: (a) 16 mixtures in alternate rows 12 cm apart, in factorial combinations of four seeding rates (5-10-12-15 kg/ha of birdsfoot trefoil and 5-7-10-15 kg/ha of tall fescue); (b) 1 blended mixture at the highest seeding rate (15 kg/ha) in rows 12 cm apart; and (c) 3 pure stands, 1 ofbirdsfoot trefoil (15 kg/ha) and 2 of tall fescue (15 and 30 kg/ha), in rows 12 cm apart. The experimental layout was a randomized block with 4 replicates giving 80 experimental 2.4-m2 plots. The trial lasted 5 years (1975-1979) without ir­rigation. The harvest of each cut was dried (105°C) and weighed; yields of mixtures were separated into their components. The analysis of collected data showed that (1) all the mixtures yielded significantly more than the pure stands; (2) blend was significantly superior to seeding in alternate rows; and (3) total percentage of birdsfoot trefoil on a dry-matter basis was 24% and 26 % in the blends and alternate rows, respectively. The mixtures of birdsfoot trefoil and tall fescue were noteworthy because of their high yields and good legume-grass balance. The two species together yielded a bulk of good fodder and stability of production during the growing season.