TY JOUR TI ACCELERATED METHOD OF DETERMINATION OF LEAF AREA OF CROPS BY COMPUTER TECHNOLOGY KW leaves surface KW determination me-thods KW planimetric method KW method of contours KW method of carvings KW computer technology KW photo-synthetic potential KW photosynthetic intensity JO Bulletin of KSAU AU Dmitriev, N.N. AU Khusnidinov, S.K. PY 2016 IS PB Krasnoyarsk State Agrarian University