Land leveling is one of the most important steps in soil preparation and cultivation. Although land leveling with machines requires considerable amount of energy, it delivers a suitable surface slope with minimal soil deterioration as well as damage to plants and other organisms in the soil. Notwithstanding, in recent years researchers have tried to reduce fossil fuel consumption and its delete...

This paper describes the quality determination of heights above mean sea level using RTK GNSS-levelling and new height reference surface SLO_VRP2016/Koper on city area Ljubljana. At 57 chosen benchmarks, quasigeoid were determined ellipsoidal heights, with GNNS-levelling technique in system SVS2010. The measured compared values interpolated from SLO_VRP2016/Koper.

A dynamic systems approach is proposed to investigate challenges of implementing production leve and associated costs. A model of a lean cell is developed using system dynamics. The model capt various lean tools influencing production levelling. Comparative cost analysis between various leve implementation policies for stochastic demand with multiple products is conducted. Results showed determ...

The GOCE (Gravity Field and Steady-State Ocean Circulation Explorer) has signifi cantly upgraded the knowledge on the Earth gravity fi eld. In this contribution the accuracy of height anomalies determined from Global Geopotential Models (GGMs) based on approximately 27 months GOCE satellite gravity gradiometry (SGG) data have been assessed over Poland using three sets of precise GNSS/levelling ...

The use of sprinkler irrigation for rice (Oryza sativa L.) crop is a relatively recent practice in Brazil. Therefore, crop soil and fertilization management are still not very well defined. Another problem is the inexistence of specific cultivars adapted to this cropping system. This study aimed to evaluate sprinklerirrigated upland rice cultivars under different soil management practices and n...