References
1. Abdullayev S.A., Nomozov H. Topographic melioration State scientific publishing house
"National Encyclopedia of Uzbekistan" Tashkent-2011. 8 b.
2. Kadirova Sh.E., Muminov K.M. Fertility enhancers of fertile soils grown in autumn
wheat. Scientific and Practical Basis for Increasing Soil Efficiency (Part 1) Summary of reports
on the international scientific and practical conferences. Tashkent-2007 109-112 b.
3. Ahmedov A.U., Amonov O.S., Parpiyev G.T, Boboyev M.F. The current reclamation state
of the Zarafshan valley's soils. Scientific and practical bases for increasing soil fertility. (Part 1) A
collection of articles based on thematic scientific and practical conferences. Tashkent-2007 115-
119 b.
4. Nerosine. A.E. "The Experience of Mirzazul's Dry and Freezing Lands" Uzbekistan State
Experts. Tashkent, 1957, p.5-54-57 b.
Достарыңызбен бөлісу: |
