Paper Details

Determination of appropriate fertilizer application time in bean cultivation in the way of plant optimum nutrition and sustainable agriculture

Ahad Fathollahi-Zonuz, Puriya Gharavi-Kouche Bagh

DOI: https://dx.doi.org/10.12692/ijb/4.12.153-158

Int. J. Biosci. 4(12), 153-158. June, 2014. (PDF)

Abstract:

In order to study integrated application of bio-fertilizers and chemical fertilizers and their application time on quantitative and qualitative yield of navy bean an experiment was arranged during 2013 in factorial based on randomized complete block design in three replications at research station farm of faculty of agriculture, Islamic Azad University, Marand Branch. Treatments were three levels of Nitrocara fertilizer (non-application (control), application at sowing stage and application in complete emergency stage) and nitrogen chemical fertilizer at four levels (non-application (control), application at sowing stage and application in complete emergency stage and application in flowering stage). Results showed that maximum shoot dry weight was related to bio-fertilizer application at complete emergency treatment. Soil test analyze results indicated that bio-fertilizers increased phosphorous, potassium and microelements availability in soil. Although completely replacement of chemical fertilizers with bio-fertilizers decreased the navy bean yield, however, integrated application of them besides the increasing of yield decreased chemical fertilizers using. Thereby bio-fertilizers in sustainable agriculture could be as supersede of chemical fertilizers which could soluble the insoluble form of nutrients during the biological process that reflected in better root development and seeds germination.