Effect of relay intercropping cotton with sugar beet under different levels of fertilizers on its yield and yield components

Abstract: Two field Experiments were conducted at Etai EL-Baroud Experimental Research Station, Behira Governorate during the two growing seasons of 2001/2002 and 2002/2003 to study the effect of relay intercropping cotton with sugar beet using three dates for growing cotton;1th , 15th of March and April and three levels of NPK fertilizerr; recommended ( 60-30-48 ), recommended- 25%,(45-22-36) and recommended + 25% (75-37.5-60), on yield and yield components of sugar beet and cotton. The results indicated that :
Sugar beet :
Weight of root/plant, root diameter and sucrose percentage were not significantly affected by cotton rely intercropped in both seasons. Whereas, root length,% total soluble sugar (T.S.S),% Purity and root yield/fed were significantly affected by cotton relay intecropped with sugar beet. Total yield/fed was significantly reduced by 15.54, 9.30 and 5.88% in the first season and 15.27, 9.27 and 5.88% in the second seson when cotton was grown on March 1st , 15th and April 1st , respectively .
Cotton :
1- Sowing cotton on March 1st sharply reduced all cotton growth characters and components and seed cotton yield/plant and per feddan. Whereas, sowing cotton on March 15th was significantly higher in number of fruiting branches/plant, number of open bolls/plant, boll weight, seed index, seed cotton yield/plant and seed cotton yields/fed, compared with the other two dates .
2- cotton fertilized by the recommended dose of NPK- 25% (45,22.5, 36) kg/fed gave significant increments in numbers of fruiting branches/plant, number of open boll weight, cotton seed and cotton yields/plants and per feddan .
3- The interaction effects between sowing dates and NPK fertilizerr levels led to higher fruiting branches/plant, total bolls/plant, number of open bolls/plant, seed yield/plant as well as seed cotton yield/fed. When cotton grown on March 15th and fertilized by recommended dose- 25%.
4- Total income was 5344.40 L.E when cotton was grown as relay intercropping with sugar beet, compared with 3570 L.E as the total income of sugar beet and cotton when grown as soild crop.

Relay intercropping of cotton with sugar beet can be recommended as intensive cropping two main yields from sugar beet and cotton without significant deleterious effect on sugar yields and sucrose percentage
Publication year 2004
Pages 1641-1656
Organization Name
Country Egypt
City القاهرة
Publisher Name: المجلة المصرية للبحوث الزراعية
serial title المجلة المصرية للبحوث الزراعية
Volume 82 . 4
Department Crop Intensification Research
Author(s) from ARC
Agris Categories Plant physiology - Nutrition
Publication Type Journal
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