Study on the effect of animal manures on soil borne diseases of cotton.
2005
Hoshyar Fard, Mahmoud | Qaranjiki,Abdol Reza | Norouzieh,Shahram | Soltani, Saied | Azad heydar Abad, Qasem
During 2003-2004, the field triales were conducted to study side effects of 3 animal manures including cow, sheep and poultry on seedling diseases, Alternaria leaf spot and verticillium wilt with 11 treatments and 3 replications as randomized complet block in Karkandeh Agricultural Research Station with history of soil-borne diseases. The 9 treatments including of 10, 20 and 30 ton/ha. animal manures and two checks. The combined analysis of variance for cotton diseases, emergence, yield and yield components showed that, there were no significant differences among these traits. Mean comparisons of disease data revealed that, animal manures had significant effects on incidence and severity of cotton diseases. Treatments of poultry manure and cow or sheep manures had the least and most rate of seedling diseases, respectively. In addition, Alternaria leaf spot disease incidence and severity were at least in cow manure treatment in comparison with others. The high yield were obtained from 20 ton/ha. poultry manure and manure treatments were significantly different from checks. We have concluded that application of some semi-decayed or decayed animal manures could be useful in sustainable diseases management of cotton.
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