The effect of different agrophytocenosis on the soil properties in the landscape of žemaičių high region

Experiments conducted in 2017 short and long-term grassland, where individual crop rotations are applied with the following crop structure: Long-term mix of perennial grasses (20% grasshoppers, 20% red fescue, 20% grasshoppers, 20% white clover, 20% gargets). On the slopes of the 11°–13° north latitude and the south-east of 12°–14° in the Kaltinėnai testing station of the Šilalė district. Here, the properties of the demersal algae and the initial land of Žemaičių heights are investigated and their influence on plant productivity and quality of crop in crop rotations with different composition. The soil pHKCl varies between 6.0-6.5, phosphorus (151–200 mg kg-1) and potassium-saturated soils (151–200 mg kg-1), carbon content (0.6–1.5 percent) in soil. Field width is 3.6 meters. The field includes the upper, middle and lower slopes of the entire slope. The length of the northern slope is 90 meters and the southern one is 43 meters. The width of the checkboxes is 2.3 m. At least 1 m of protective zone is left at the ends of the fields. Fields are arranged rendomised. Short-term mixture of perennial grasses - cereal grass crop rotation from 67 per cent of mild cereal and 33 percent of clover - timothy grass mixture (crop rotation: 1. Winter rye; 2. Barley; 3. Barley; 4. Barley + Preceeding crop; 5. Perennial grasses of the first year of use; 6. Perennial grasses second year used). Soil pH at the northern part of the slope in the upper and lower part of the short and long-term grassland was most suitable for plant growth and was less distinct from the middle and lower slopes. There were no significant differences between the different slopes and their parts and grassland storage timesVytauto Didžiojo universitetasŽemės ūkio akademij