The present study was carried out at El-Mattana Agriculture Research Station Qena Governorate, Upper Egypt in 2007/2008 and 2008/2009 growing seasons to evaluate three sugarcane varieties (two promising varieties viz. G. 98-28, Phil. 8013 and the commercial variety G.T. 54-9) grown at three planting pattern; whole stalk as one, two and three pieces. Treatments were arranged in a split-plot design with three replicates. The main plots were assigned to three sugarcane varieties while planting pattern were distributed in the sub plots. Results showed that sugarcane varieties were significantly differed in stalk diameter, sucrose percentage and sugar yield ton/fed in the second season only. Cane yield was significantly affected by grown varieties in both seasons. Phli. 8013 showed superiority in all significant traits. Under this study as compared with of her varieties planting pattern were significantly affected in all studied traits except stalk height, brix and sucrose percentages in the second season and number of millable cane/m 2 in both seasons. Planting sugarcane with by cutting cane stalk into three pieces gave the highest values in all studied traits except, stalk diameter which obtained with planting whole stalk. The interaction effect between varieties and planting pattern was insignificant in all studied traits except in purity percentage in the first season. The height values were obtained when planting Phli.8013 variety by cutting cane stalks into three pieces. Under conditions of the present work, growing sugarcane varieties i.e., G.T. 54-9, Phil. 8013 and G. 98-28 by cutting cane stalk into three pieces recommended for getting the highest cane and sugar yields/fed.
Two filed trials were carried out in Shandaweel Agricultural Research Station, Sohag Governorate during 2006/2007 and 2007/2008 seasons. Each trail included 12 treatments represent, hand hoeing once at 45 days after planting (DAP), hand hoeing twice at 45 and 65 DAP and hand hoeing thrice at 25, 45 and 65 DAP, using herbicides, Garlon at rate 200 cm/fed, Derby at rate 30 cm/fed, Starane at the rate of 200 cm/fed and Karmex at the rate of 2 kg/fed, and the use of these herbicides separately plus one hand hoeing at 65 DAP and unweeded (control). Treatments were arranged in a randomized complete block design with four replicates. Sugarcane var Ph. 8013 was used. The obtained results revealed that weed control treatments had a significant affected on narrow, broad leaved and total weeds (g/m 2) in both seasons. Hand hoeing thrice, hand hoeing twice and Garlon + one hand hoeing gave the best weed control as compared to unwedded treatment in the first and second seasons, respectively. Also, weed control treatments significantly affected stalk height and diameter, number of internodes/stalk, brix, sucrose and sugar recovery percentages as well as millable cans, cane and sugar yields in both seasons. Using hand hoeing thrice resulted in the highest values of the studied traits in both seasons, except brix, sucrose and sugar recovery percentages in the second season. Using Karmex + one hand hoeing resulted in the highest values of these traits as compared to the unwedded treatment. Under conditions of the present study, it can conclude that hand hoeing thrice achieved the highest values for cane and sugar yields.
T HE PRESENT investigation was carried out at Shandaweel Agricultural Research Station, Sohag Governorate (latitude of 26°33'N, longitude of 31°41'E and Altitude of 69m), in the two successive seasons 2016/2017 and 2017/2018 to investigate the effect of study the effect of nitrogen, phosphorus and filter cake on yield and quality of sugarcane. The filed experimental work was carried out in a Randomized Complete Blocks Design (RCBD) using a split-split plot arrangement in three replications in both growing seasons. The results showed that increasing nitrogen levels from 150 up to 210kg N/fad resulted in a significant increase in plant length, diameter, stalk weight, number of millable canes, cane and sugar yields, as well as brix, sucrose, quality and sugar recovery percentages in both seasons. Super phosphate addition by rates 30kg P 2 O 5 /fad resulted in a significant increase in plant length, diameter, number of millable canes, stalk weight and cane and sugar yields, as well as brix, sucrose and sugar recovery percentages in both seasons. Results showed that the addition of filter cake by 4tons/fad give a significant increase in plant length, diameter, number of millable canes, stalk weight, cane and sugar yields, as well as brix, sucrose and sugar recovery percentages in both seasons.
Two field trials were carried out at Shandaweel Agricultural Research Station (Sohag Governorate) during 2003/2004 and 2004/2005 seasons. Each trail included 24 treatments represent the combination between three irrigation intervals (12, 16 and 20 days, i.e. a total number of 27, 20 and 16 irrigations), four potassium fertilizer levels (0.0, 25.0, 50.0 and 75.0 kg K 2 O/fed) and two sugarcane varieties viz. G.T.54-9 and Ph.8013. Treatments were arranged in a Split-Split Plot Design with three replicates. The main plots were assigned for irrigation treatments; sugarcane varieties were distributed in the sub plots and potassium fertilizer levels were randomly distributed in the subsub plots. The results showed that decreasing irrigation intervals from 20 to 12 days significantly increased stalk length, stalk diameter and cane yield/fed in both seasons. Applying irrigation water every 12 and/or 16 days attained significant increase in the number of millable cane/fed and sugar yield/fed. However, both of sucrose and sugar recovery percentages were negatively and significantly affected by increasing the periods between irrigations.All the studied traits of sugarcane were positively and significantly influenced by increasing K level from 0.0 up to 75 kg K 2 O/fed.The two sugarcane varieties differed significantly in their response to all studied characters. The commercial variety G.T.54-9 recorded higher values of stalk length and number of millable cane/fed, while the promising cane variety Ph.8013 had thicker stalks, higher sucrose and sugar recovery percentages, and sugar yields.The present investigation showed that the planting sugarcane variety Ph.8013 irrigated every 12 or 16 days and fertilized with 75 kg K 2 O/fed is recommended to obtain the highest cane and sugar yields/fed.
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