The purpose of this paper was to emphasize the production potential of raw cotton through behavior analysis of three species of cotton (Marismas, Coko and Canada) from Greece and North America, in pedoclimatic conditions of Timisoara and in function of fertilization degree. Investigations developed during the period 2008- 2010. Bifactorial experience was placed in the field after subdivided parcels method. The experimental factors established were: factor A - agrofield (A 1 - N 0 P 0 K 0 , A 2 - N 30 P 30 K 30 , A 3 - N 60 P 30 K 30 , A 4 -N 90 P 60 K 60 , A 5 -N 120 P6 0 K 60 , A 6 -N 30 P 30 K 30 + foliar fertilization); factor B- species (b 1 - Marismas-Greece, b 2 - American provenance, b 3 - Coko-Greece). It was made pedoclimatic factors monitoring during vegetation period. For production quality and quantity an important role had the three fertilizer macroelements: the azoth, phosphorus, and potassium, the azoth represented the dominant fertilizer factor. Analysis of vegetation conditions for the cotton realized during the period May- October, active vegetation period (180 days) bordering between seeding date (9 th May) and the first autumn hoarfrost (the second decade of October month). Investigation brought a reference data base of cotton crop appreciated in Western Romania. Also, it was a good point of view to develop the agricultural field of Banat’s Plain. Production analysis of raw cotton, fibers and seeds obtained under species influence emphasized differences among them, in that way: by the weather conditions of Timisoara in the year 2009, the average productions of raw cotton were: Grecian species Marismas – 2005 kg/area, Grecian species Coko- 2069 kg/area, and Canada species - 2145 kg/area. In separated analysis of every species under agrofield influence it distinguished two of agrofields with bigger influence on raw cotton production to the three species of cotton, such as, a 4 - N 90 P 60 K 60 and a 5 -N 120 P 60 K 60 , respectively the azoth doses applying about 90 kg/area and on potassium and phosphorus field about 60 kg/area from every one. The three species of cotton presented a good adaptability to pedoclimatic conditions of Timisoara in the year 2009.

cotton, production, agrofield

Presentation: oral