N. Delchev, K. Trendafilov Abstract. There is a direct connection between the loss of grain during harvest and the working speed of the harvester. At the same time the speed is determining for the productivity of the machine. Therefore, the contemporary harvesters have an electronic s

R. Georgiev, K. Peichev, A. Pavlov, K.Trendafilov, G. Dineva, I. Binev Abstract. A laboratory adsorption cooling module was developed. The module is designed to operate on ecological materials: zeolite and water. The authors of this publication set the following objectives: designing

B. Harizanova-Petrova, A. Ovcharova Abstract. The aim of this study was to determine the influence of irrigation regime on the yield of root celery by drip irrigation. The experience was conducted in the experimental field of Department of Melioration and Land Surveying of Agricultura

Tz. Kikindonov, S. Enchev, K. Slanev Abstract. The influence of the in-row sowing rate for different varieties of Sudan grass and Sorghum x Sudan grass hybrids on the green mass productiveness in brooming stage was studied in 2010–2011. In significantly differing agro-climatic conditi

P.Yankov Abstract. The capillary water is of major importance for the growth, development and productivity of plants. The use of different ways of soil tillage affects the natural position and entity of the soil layer, which, on its side, causes variations in the capillary rise of the

R. Petrova, A. Matev, H. Kirchev, A. Sevov Abstract. The aim of the conducted experiment is to determine the effect of irrigation canceling during the different phases of sunflower vegetation, and single irrigation done at a particular growth stage. The field experiment was conducted

Z. Zlatev, V. Popov Abstract. The aim of this study was to investigate the effect of organic fertilization on photosynthesis of young tomato plants (Lycopersicon esculentum Mill.) – cv. Trapezica and cv. Yana. The field experiments were carried out at the experimental field of the Agr

K. Uzunova, Z. Zlatev Abstract. Laboratory experiments were conducted to study the effect of soil drought on photosynthesis of young cowpea plants (Vigna unguiculata L.) – cv. Lagoa and cv. 1183. Drought conditions were imposed on 2-week-old plants by withholding water for 10 days. It

I. Stankov, S. Tsvetanov, P. Stankova, I. Yanchev, T. Raycheva Abstract. The studies have been carried out through demonstrative experiments by the first in the country private Seedsman’s house “Sadovo”. Presented are the results from the studies on the productivity and some qua

B. Dyulgerova, D. Dimova, D. Valcheva, D. Vulchev, T. Popova, M. Gocheva Abstract. Five winter feed barley varieties were tested at the experimental field of the Institute of Agriculture – Karnobat over a six-year period to assess their yield potential and stability. Varieties Bozhin