The Effect of Applying Biological Fertilizer, Chemical, and Manure on some of Qualitative Characteristics of Forage Sorghum under Greenhouse Condition

Document Type : Research Article


1 M.Sc. Student of Agronomy, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ferdowsi University, Mashhad, Iran

2 Ph.D. Student in Animal Nutrition, Department of Animal Sciences, Faculty of Agriculture, Ferdowsi University, Mashhad, Iran

3 Associate Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ferdowsi University, Mashhad, Iran

4 Professor, Department of Animal Sciences, Faculty of Agriculture, Ferdowsi University, Mashhad, Iran


Fertilizer management is most important factor in success of plants crops cultivation. Application of biological fertilizers is important in production of these plants with the aim of elimination or significant reduction of chemical inputs and also increase of soil fertility and improvement of plant growth and quality. An experim was conducted to study the response of some qualitative characteristics of forage sorghum to biological, chemical, and manure, in a randomized complete block design with three replications. The experimental treatments included three biofertilizers and their combination and vermicompost and chemical fertilizer as follow: 1- mycorhhiza arbuscular species Glomus moseae + vermicompost, 2- mycorhhiza + nitrocsin (included bacteries Azospirillum sp. and Azotobacter sp.), 3- mycorhhizaarbuscular + Rhizobium (Rhizobium sp.), 4-mycorhhizaarbuscular + Chemical fertilizer NPK, 5- mycorhhizaarbuscular (Glomus moseae) and 6-control. In this experiment, although the treatments have not significant effects on ash, NDF and ADF, however, crude protein, dry matter digestibility as well as organic matter digestibility were affected by experimental treatments. The results showed that the percent of crude protein (15/19 percent), dry matter digestibility (70/12 percent) and organic matter digestibility (72/16 percent) were higher in integrated mycorhhiza and nitrocsine treatment in comparison whit other treatments. The numerical highest percent of ash (9.8 percent) was observed in mycrhhoriza plus vermicampost. In conclusion, the integration of mycrhhoriza and biological nitrocsine had the higher positive impact on forage quality of sorghum. Therefore, it could be concluded that biological fertilizers may be considered as a suitable replacement for a lot of chemical fertilizers consumption in sustainable agricultural systems.


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