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Bianko and Ninagri to water depletion levels (25, 50 and 75% of the available soil moisture). Puma variety was the most tolerant sugar beet variety according to stress tolerance index (STI) along with recorded the highest leaf area index (LAI) and plant dry weight at 150, 175 and 200 days after sowing as well as the highest root and sugar yields, followed by Monte Bianko, Ninagri and Palace cevek variety throughout the growing seasons, while the highest sucrose, purity and sugar recovery (SR) percentages resulted from Palace cevek variety. Increasing water depletion level from 25 up to 75% negatively affect beet growth traits and decreased root yield by 17.45 and 17.44% and sugar yield by 11.63 and 9.94% in the first and second seasons, respectively. On the contrary, sucrose, purity and SR significantly increased as water depletion increased, in addition to, the water use efficiency (WUE) increased by 48.3 and 40.1% in the 1 st and 2 nd seasons, respectively. Puma variety irrigated with 25% water depletion produced the highest LAI, plant dry weight, potassium and sodium content as well as root and sugar yields.

Crop rotation / tillage impact on status of plant nutrients, crop production and soil properties was studied under North Sinai conditions, Egypt. The study assessed crop rotation (rice/clover (Berseem) / wheat/ soybean/ wheat (summers 2016 to 2018) under no tillage (NT) and conventional tillage (CT) systems and implications of crop and soil performance. CT revealed more positive implications over NT in few cases. Contents of available nutrients in soil after harvest were greater after legumes. Contents of Fe, Mn and Zn in soil after crop harvest showed increases with CT than NT Rotation cropping maintained similar levels after legume crop especially compared to cereals crop. Crop productivity was in some cases higher CT than NT although NT increased plant chlorophyll, protein and proline.

Soil and water agro-management techniques play a critical role in grown crops to increase productivity. Mulching is one of the good agriculture practices methods to conserve soil moisture, control weeds and improve soil physical properties. Two field experiments were