Productivity and feed value of sparsely distributed annual crops

Abstract

The feed value of sparsely distributed annual crops in the forest-steppe of the Krasnoyarsk territory was determined, namely: the content of feed units, feed protein units, digestible protein; the yield of green mass, the collection of dry matter, feed protein units (FPU), feed units (FU) and energy productivity. The feed value and productivity of annual grasses depended on the biological characteristics of the species and variety, the content of nutrients, the yield of green mass and the collection of dry matter. There were increases in the green mass of Echinochloa frumentacea (Roxb.) Link, Amaranthus paniculatus and Melilotus albus to control Avena sativa L. by 182 %, 148% and 145 %. The best in collecting dry matter, feed protein units, digestible protein and energy productivity were Melilotus albus and Echinochloa frumentacea (Roxb.) Link. Panicumm iliaceum L has the maximum content of feed units in the green mass 0.23 feed units/kg, Melilotus albus has 0.25 FPU/kg of feed protein units and Panicum miliaceum L. has 0.24 FPU/kg, Melilotus albus has 35 g/kg of digestible protein.