COMPARATIVE EVALUATION OF YIELD AND CHEMICAL COMPOSITION OF THE PEARL MILLET HAYNurbolat Mukhanov, Nurlan Serekpayev, Gani Stybayev, Aliya Baitelenova, Adilbek Nogayev and Almas Kurbanbayev
Depending on sowing time, the highest yield of hay was obtained by sowing in the second part of May - 6.1 t/ha. Irrigation provided an increase in hay yield, depending on the sowing time, from 0.7 to 5.6 t/ha. In the second part of May, a large amount of crude protein, ash, soluble carbohydrates and carotene was obtained in the crabgrass hay, and amounted to 12.5, 8.8, 3.9% and 195.3 mg/kg, respectively. Also, the highest values of crude protein, ash, soluble carbohydrates and carotene were observed during irrigation, and amounted to 12.7, 8.8, 3.2% and 189.9 mg/kg. The amount of crude cellulose, depending on the agrotechnical measures, changed insignificantly. The content of crude fat in the pearl millet hay, according to the agrotechnical measures, did not change, and was equal to 1.7%. Depending on the phase of development, the highest amount of crude protein, ash, fat and carotene was observed in the phase of leaftube formation, and amounted to 11.3, 10.9, 8.2% and 197.2 mg/kg, respectively. Most of the soluble carbohydrates were determined in the ear formation phase (11.0%), crude cellulose in the flowering phase (39.8%). As a result of the studies, with the best conditions, for obtaining a higher and qualitative yield of the pearl millet hay the sowing time was fixed in the second part of May, without irrigation, and harvesting in the early phases of vegetation (leaf-tube formation and ear formation). It is also determined that the use of irrigation in the cultivation of pearl millet ensures high yield and quality of hay.