Effect of Growing Crops and Rice Soil on Growth, Regeneration and Yield of Grass Brachiaria humidicola Grown in Central Vietnam

B. humidicola grown in Thua Thien Hue province to provide food for the buffalo and cow breeding industry. The study was designed to experiment on 2 types of soils, soil growing crop and rice soil, of which 5 land slots with an area of 30m2/plot were selected to grow the grass during the period from January 2021 to December 2022. Research results show that B. humidicola had high vitality, adaptability and growth through the rebirths of grass on the two kinds of soils, soil growing crops and rice soil in Thua Thien Hue province. The highest height of B. humidicola grass grown in the experiment was 73.66cm (batch 2) - 75.02cm (batch 1) on soil growing crops and 79.77cm (batch 3) - 81.36cm (batch 1) on rice soil. The grass lawn height was 44.79cm (batch 2) - 45.79cm (batch 1) for soil growing crops and 46.42cm (batch 3) - 47.93cm (batch 1) for rice soil. Number of branches/bush of various batches of B. humidicola was 40.05 branches/bush (batch 1) – 43.26 branches/bush (batch 3) for soil growing crops and 45.34 branches/bush (batch 2) - 48.30 branches/bush (batch 3) for rice soil. The regenerative capacity green matter yield (12.53 – 13.32 tons/ha/batch), dry matter yield (3.13 – 3.50 tons/ha/batch), protein yield (0.67 – 1.04 tons/ha/batch) of B. humidicola grass grown in Thua Thien Hue were relatively high. This is an abundant source of food for the development of buffalo and cow husbandry.