The density of the structure of dark gray podzolized soil under different tillage systems under crop rotation

The results of studies on the influence tillage systems density structure dark gray podzolized soil under crops in a four-field short-rotation crop rotation (winter rape – winter wheat corn for grain spring barley) stationary field experiment Institute Agriculture Western Polissia National Academy Sciences Ukraine during 2016 are shown. 2020. In experiment, three were studied (shelf by 20–22 cm, shallow 10–12 surface 6–8 cm) against background mineral fertilizers N128P90K120 kg/ha area. It was determined that at time germination and weeding shelf system cultivation, plow layer formed rotation, which characterized compaction close to optimum 1.06–1.33 g/cm3. Under no-shelf 0–30 cm differentiated into upper loose 0–10 with 1.13–1.24 g/cm3 compacted 1.30–1.41 lowest wheat, barley, layers 10–20 where it was, respectively, range 1.06–1.19 1.17–1.25 Noticeably, increased 1.36 20–30 1.47 0.14 g/cm3, compared wormwood this crop. cultivation creates better conditions optimizing agrophysical fertility indicators provides highest yield system, made possible obtain yields 6.80 6.32 respectively t/ha 5.19 4.99 barley 11.25 11.33 2.97 3.05 rapeseed. From application depth decreases 1.45 t/ha, 1.69 3.66 rapeseed 0.30 system. Key words: density, tillage, shelf, shal-low, surface, productivity, rotation.