Biological Features and Forage Performance of Black Saxaul (Haloxylon Aphyllum (Minkw) Iljin) in the Central Asian Desert

Haloxylon aphyllum (Minkw.) Iljin is a treelike shrub from the Chenopodiaceae family with thick, gnarled, highly branched trunk dark gray bark. It propagated by seeds. The most typical conditions of natural habitat are valley-like depressions ridges and hollows hilly sands, valleys channels old rivers, often more or less close groundwater occurrence, as well takyrs takyr-like serozem soils. Black saxaul has powerfully developed, deeply penetrating root system that reaches level moist soil layers. eaten part black in autumn-winter period annual shoots, last year’s twigs, fruits. contains 10-12 % protein (in fruits up to 20 %), 2.2-2.7 fat, 21.2-38.6 ash substances, 39.3 nitrogen-free extractive substances 14.9 fiber. At age five six years, plant height 4-6 m, deepens 14-16 m. Productive longevity 35-45 years. begins vegetate late March – early April development generative shoots. Flowering coincides flowering lasts 10-20 days. saxaul, depending on growing conditions, enters fruiting phase 2-4th year life. When creating pasture shelter strips, forage productivity adjacent pastures at distance 100 m increases 20-30 %. In strip itself, yield small grasses 2-3 times. total improved crops considering pastures, 2