Plant and Soil Science

The results of researches, got in the protracted field stationary experience during 46, are represented in the article. The aim of researches was determination of the quality of grain of wheat winter-annual at different weather terms and systems of fertilizer in South Steppe of Ukraine. Researches executed in the protracted field stationary experience of department of agricultural chemistry and fertility of soils of the Odessa state agricultural experimental station of NААS on southern black soil humus wakeupinterval on the forest breed, founded in 1971. The analysis of results of the protracted field stationary experience provided the receipt of objective data of influence of weather terms and action of fertilizers on quality of grain of wheat winter-annual during six rotary presses of crop rotations. It is set that the protracted use on black earth south of the organic-mineral system of fertilizer provided the best quality of grain of wheat winter-annual, the greatest content squirrel and gluten in that answered the requirements of the second class. It is marked, that the indexes of quality of grain of wheat winter-annual depended on the features of weather terms during a vegetation period. A sufficient amount is warm and moisture a squirrel assisted the best mastering of nitrogen and piling up and gluten in grain of wheat winterannual with application of all systems of fertilizer. 

wheat is winter-annual, weather terms, systems of fertilizer, crop rotation, quality of grain, content squirrel and gluten