The maize and winter wheat losses yield in dependence of harvest time at Vinkovci area

The harvest is also linked to loss of grain the level of which dependes upon a number of factor like departure from the optimal harvest time, particulary in unfavourable soil and climatic conditions. The influence of the inflicted on grain quality during harvesting The losses may be increased trough meledjustment of combines method of transportation and by whole range of other factors In this work reference climatic data was given (1410.9-1755.0 degrees C - summ corn growth units - during fourthy three years). Our investigations confirm similar results other autors, respectively (P=1%) all individual sorts contained higher grain the moisture with the harvest is also linked for week from the optimal harvest time in 1989. y. (12.07.-19.07.). With the distance from optimal harvest time of corn (XII, I, II month) with the reduce moisture of grain, its increased share defects trash and break grains. In period of 12.07. till 19.07. for all winter wheat sorts especially at later sorts hectoliter mass was high significant decrease (from 78.15 to 82.7 kg at optimal harvest time till 72.25 to 75.05 kg). The share of the admixture isn`t showed of different in the relation on harvest time.