Federal'nyy nauchnyy centr kormoproizvodstva i agroekologii imeni V. R. Vil'yamsa
Russian Federation
Russian Federation
Russian Federation
UDC 631.8
UDC 632.51
The article presents studies of elements of perennial legume cultivation technology in the scientific field of All-Russian Research Institute of Irrigated Agriculture (Volgograd). The irrigation regime, fertilization system, and diversity of perennial legumes were studied. The most rational irrigation regime seems to be maintaining the pre-irrigation moisture threshold in the 0.7 m layer at no less than 80% of the LMC (lowest moisture capacity) during the growing season. The best option was the application of mineral fertilizers NPK2, the fertilizer dose calculated to obtain 32 t/ha in the first, 80 in the second, 70 in the third and 60 t/ha of green mass in the fourth year of life grass stands. Depending on the level of pre-irrigation soil moisture, the highest yield was formed by variegated alfalfa (Medicago varia) and sainfoin (Onobrychis viciifolia and Onobrychis transcaucasica). The lowest — by yellow alfalfa (Medicago falcata) and birdsfoot trefoil (Lotus corniculatus).
field experiment, perennial grasses, irrigation regime, fertilizers, yield, water consumption, nutritional value
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