TY  - SER
AU  - Zohry,A.A.
TI  - Effect of relaying cotton on some crops under bio-mineral N fertilization rates on yield and yield components
KW  - Cotton
KW  - Fertilization
KW  - Cropping systems
KW  - Intercropping
N1  - Includes references
N2  - Two field experiments were carried out at Mallawi Agricultural Research Station (Middle Egypt), during 2002/2003 and 2003/2004 seasons to investigate the effect of cropping systems and rates of nitrogen fertilizer on yield and yield components of cotton relayed with some crops (onion, faba bean and wheat). The experimental design was split plot with four replications. Four cropping systems were arranged in the main plots; solid cotton, cotton relayed on onion, cotton relayed on faba bean and cotton relayed on wheat, while the levels of N fertilizer were arranged in the sub plots (30, 45, 60kg N/fed. 30 kg N + microbin, 45 kg N +rnicrobin and 60 kg N/fed +microbin). The results indicate that: Relaying cotton had a significant effect on studied cotton traits and yield. Plant height, number of open bolls/plant, number of fruiting branches/plant, seed cotton yield/plant and seed cotton yield/fed. Pure stand of cotton were Superior to all other relayed pattern followed by that relayed on faba bean, while the lowest values were observed when cotton was relayed on wheat. Increasing nitrogen fertilizer rate from 30 to 60 kg N/fed. increased all the studied cotton traits, similarly, inoculation with microbin significantly increased all the studied traits as compared with the uninoculated cotton. Application of microbin+60 kg N/fed. resulted in the highest values, whereas. the lowest values for all growth traits of cotton were obtained with 30 kg N/fed. Solid cotton fertilized with microbin+60 kg N/fed. was superior in all studied traits followed by cotton plants relayed on faba bean and received microbin+60 kg N/fed. Data also revealed that the intercropped crops (onion. faba bean and wheat) were significantly affected by the cropping systems. The cropping systems reduced yield/fed of onion, faba bean and wheat as compared to those grown in monoculture. Cotton relayed on faba bean had the highest values of land equivalent ratio (LER) (1.82) while Cotton relayed on onion had the highest values of gross benefit and net return
UR  - http://nile.enal.sci.eg/EALE/2005/AASM/4305/1/89.pdf
ER  -