Barabolya O. Theinfluence of agroecological factors on the yield and grain quality in wheat durum spring in the left-bank of the Forest-Steppe the damp subzone

Subject: the influence of agroecological factors on yielding ability and grain quality in spring durum wheat. Aim: to ground scientifically and work out agricultural methods for varietal technology of cultivation of spring durum wheat adapted to the left-bank Forest-Steppe subzone conditions that could provide with high yield of qualitative, ecologically safe grain. Methods: field, visual, laboratory, statistical. Novelty: in the 3-factor trial the influence of seeding rates, mineral fertilizer rates on the plant growth and development, elements of yield structure, the level and nature of weedery, yielding ability and grain quality of spring durum wheat depended on forecrops and meteorologic factors have been grounded scientifically. Results: the scientifically grounded recommendations have been worked out as to the improvement of the spring durum wheat growing technology, which include a choice of the best forecrops, optimal parameters for plant fertilization, seeding rates, bates and techniques for harvesting that permits to increase yielding ability by 3,6 t/ha on black fallow, by 3,2 t/ha after peas and provide the food industry with ecologically safe, qualitative grain of the 1st-2nd grades for the production of macaroni, cereals and foodstuffs for children. Application stage: the developed technology has been applied on 294 ha area. The obtained results as to the influence of agroecological factors on yielding ability and grain quality of spring durum wheat in accord with 1000 kernel weight, test weight, glassyness, in the educational process under the name "Technology of cereals' production" for the students of Agronomy speciality. Application area: agricultural enterprises of all the forms of ownership.