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EN
The present study was carried out at Guneid Research Sugar Cane Center during the two seasons of 2014 and 2015.The objective was to investigate the effect of three irrigation intervals 7, 10 and 14 days and two planting methods manual and mechanical on sugar beet crop growth and yield. The parameters measured were germination ratio, root thickness, root number/ha, leaf weight, root crop yield, polarization, estimated recovery sugar and sugar beet production. A split plot design with four replications was used. Irrigation intervals significantly (P≤0.05) affected root crop yield, root thickness and sugar beet production. The maximum values of root crop yield (65.4 ton/ha) and root thickness (35.2 cm) were obtained under 10 days irrigation interval, while the maximum values of sugar beet production (10 ton/ha) was obtained under 7 days interval. Methods of planting significantly (P≤0.05) affected root crop yield, root thickness, root number/ha, germination ratio, polarization, estimated recovery sugar and sugar beet production. The maximum values of root crop yield (65.2 ton/ha), root number/ha (67375 roots/ha), germination ratio (79.8%) and sugar beet production (9.7 ton/ha) were recorded for the manual planting method, while the maximum values of root thickness (35.6 cm), polarization (18.4%) and estimated recovery sugar (15.8%) were recorded for the mechanical planting method. The combined of irrigation intervals and sowing methods (irrigation intervals 7 days with manual planting methods and irrigation intervals 10 days with mechanical planting methods) resulted in hiegh polarization (18.5, 18.5 %), estimated recovery sugar (16, 16 %) and sugar beet production (10.7, 9.7 ton/ha), respectively, compared to other treatments. Irrigation intervals 10 days with mechanical planting method can be recommended to prevent loss of sugar content in sugar beet roots.
EN
The present research study was carried out at Guneid Research Sugar Cane Center during the two seasons of 2014 and 2015.The objective was to investigated the effect of four tillage systems (mouldboard plowing, disc plowing, chisel plowing and disc harrowing) and three irrigation intervals (7, 10, and 14 days). The parameters measured were some crop parameters (germination ratio, root thickness, root number per hectare, leaf weight, root crop yield, polarization or sugar content, estimated recovery sugar and sugar beet production. A split plot design with four replications was used in this study. Different tillage systems significantly (P≤0.05) affected root number per hectare and germination ratio. The maximum value of root number per hectare 62254 roots/hectare, germination ratio (76.2%) and sugar beet production (10 ton/hr) and were given by disc plowing treatment, while the maximum root thickness (35.5 cm) were recorded by chisel plowing treatment and the maximum values of polarization or sugar content (18.6%) and estimated recovery sugar (16.9%) were recorded by disc harrowing treatment. While the minimum values of root crop yield, (58.55 ton/hectare) and germination ratio (66.5%) were given by chisel plowing treatment. Also irrigation intervals significantly (P≤0.05) affected root crop yield, root thickness and sugar beet production. The maximum values of root crop yield (65.45 ton/hectare) and root thickness (35.2cm) were obtained under an10 days irrigation interval, while the maximum values of sugar beet production (9.71 ton/hectare) was obtained under a 7 days irrigation interval. It was concluded that using disc plowing increased sugar production from sugar beet crops at Guneid Research Sugar Cane Center.
EN
Soil characteristics are important indicators of the potential for agricultural production. This study investigates the direct and residual effects of green and farmyard manures on soil dry bulk density, total porosity, soil moisture percentage, infiltration rate and wheat grain yield of a desert plain soil in Northern Sudan during three successive seasons 2007/08 (direct effect), 2008/09 (direct and residual effects) and 2009/10 (residual effect). Treatments consisted of green manure produced from green gram (Vigna radiate) with two seed rates (0 and 12 kg ha-1), and farmyard manure with two levels (0 and 10 ton ha-1) arranged in a split plot design with three replicates. The results revealed that all studied treatments significantly decreased soil bulk density and infiltration rate (P ≤ 0.01), and increased total soil porosity and soil moisture percentage (P≤0.001), as compared to the control in response to the application of the two types of manures. The results also showed that the direct and residual effects of manures caused significant increase in the wheat grain yield of the desert plain soils. It can be concluded that green and farmyard manures had continuing positively effects on the desert plain soil to produce higher grain yield of wheat. Green manure, therefore, may be used in vast desert plain soils areas as it may pose a solution to the problems of the infertility and unavailability of organic manure and farmyard manure may be useful in small areas in the Northern State of Sudan.
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