1. Vartapetian B.B., Davtyan N.G. Peculiarities of roots oxygen regime in water cultivation conditions. J. Plant Physiology, V. 17, Moscow, 1970.

2. Vartapetian B.B., Davtyan N.G. The oxygen and ultrastructure of root cells. Agrochimica, V. 15, N 1, 1970.

3. Davtyan N.G. On question about accumulation of nitrogen acid salts-nitrates in plant production. Proceedings of the YSU 60-th Anniversary Seccion, 1981.

4. Davtyan N.G., Araratian L.A. River Vokcha polluted waters influence on the microelements content. Newsletters of the Institute of Agrochemical Problems and Hydroponic, N 22, 1981.

5. Davtyan N.G. Be careful! Nitrates! // J. of the Ministry of Ecology and Nature Protection "Akunk", 1993.

Recent Publications:

1. Avetissian R.H., Vartanian M.K., Davtyan N.G. Navasardian I.A., Melik-Khachatrian J.H. Optimization of the N+P+K. summary concentration and N:P:K ratio in nutrient solution for mycelium of mushrooms in the soiless cultivation. Proceedings of the Conference devoted the 30-th Anniversary of the Department of Biophysics at the Biological Faculty of the Yerevan State University.

2. Vartanian M.K., Davtyan N.G. Navasardian I.A. The hydroponic production in ecologically pure mycelium. Proc. of II Republican Scientific Conference of Foodstuffs by Biotic and Abiotic Contaminants, 1996.

3. Sargsyan M.A., Terlemezian H.L., Davtyan N.G. Microbial drugs as an effective method against cabbage moth. Scientific Newsletter, N 1, 1997.

4. Abovian N.A., Vartanian M.K., Davtyan N.G. Navasardian I.A. Improvement of soiless cultivation of mycelium of mushrooms. Biological J. of Armenia, 1998, 1-2 (51).