A. Stoilova, Hr. Meluca Abstract. The new cotton varieties Rumi and IPK Nelina were tested in 2005–2010. Rumi variety resulted from the crossing of the Bulgarian breeding line 268 (Garant X Progress) to the American variety Deltapine 20. The Progress variety was obtained after the int

V. Sabev, S. Raykov, V. Arnaudov Abstract. The study was conducted in the experimental field of the Institute of Forage Crops Pleven, Pavlikeni branch during the 2005–2007 period. The objective of the study was to determine the effect of soil trampling by the wheels of the tractor uni

N. Valchev, S. Masheva Abstract. With aim optimization of nutritive regime of glasshouse tomatoes supplementing the mineral nutrition by using foliar fertilizers an experiment was carried out in which on the background of basic fertilization with double superphosphate, potassium sulph

S. Masheva, V. Todorova, G. Toskov Abstract. The effect of multi-objective promotor Immunocitofit on the germination, germinating energy, yield and degree of infestation as a result of Verticillium wilt was studied in treatment of pepper seeds and plants variety Kurtovska kapiya 1619.

N. Miteva, O. Tafradziiski Abstract. Asters (Callistephus chinensis L.) are one of the basic annual sorts for growing in the open with big economic importance for getting cut flower. This is defined not only by their high decorative qualities because of the variety of structure and co

A. Ivanova, N. Tsenov Abstract. . Drought is a climatic specificity of the geography in Bulgaria. Under the effect of global climatic changes, drought becomes increasingly intense. A field trial investigated the effect of various mineral fertilization norms on the productivity of comm

A. Dobreva Abstract. It was raced the influence of acidity rate (pH=4 and pH=6) on the quantity and chemical composition of essential oil of Rosa damascena Mill. It was established that the yield is ranging 80 ÷ 110 % compared with control and the amount of the main terpene alcohols (

During the years 2006-2009 field experiment with winter wheat was held in the region of Stara Zagora. The object of study is the economic impact of leaf treatment with liquid fertilizer micro on productivity of winter wheat. Field experiment includes the following study options: contr

Research studies on cotton potassium fertilization in the last years at the Cotton and Durum Wheat Research Institute – Chirpan, Bulgaria have been reviewed. The soil Eutric vertisols was well supplied with available potassium (31-43 mg/100 g soil). The effect of K application was not

The Effect of Zinc Application on the Yield and Zinc Uptake of Maize in Xerochrept and Haploxeralf Soils K. Belliturk, B. Sozubek