Effect of Fertilizers Containing Nitrogen on Yield and Mucilage of Isabgol (Plantago ovata L.) in Irrigation and Cutting off Irrigation
Subject Areas : Journal of Crop Ecophysiology
Amir Toghraei
1
(1- Ph.D. Student, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Tabriz Branch, Islamic Azad University, Tabriz, Iran)
Bahram Mirshekari
2
(Associate Prof. Department of Agronomy and Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran.)
Jahanfar Daneshian
3
(3- Professor, Seed and Plant Improvement Institute, Karaj, Iran)
Hamdollah Kazemi Arbat
4
(4- Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Tabriz Branch, Islamic Azad University, Tabriz, Iran)
Mehrzad i Mohasses Mostashar
5
(Assistant Professor, Soil and Water Research department, Research and Education Center of Agricultural and Natural Resources of Qazvin Province, Qazvin, Iran.)
Keywords: vermicompost, Cattle manure, Chemical Nitrogen fertilizer, Isabgol,
Abstract :
This experiment carried out during 2010-11 and 2011-12 cropping years to study the effect of variant levels of fertilizers containing nitrogen, normal irrigation and irrigation hindering on some agronomical characteristics of isabgol, in Smaeel-Abad Agriculture Research Center of Qazvin. The research was carried out by using two split plot experiments based on randomized complete block designs with three replications. The experiments were repeated for two consecutive years and finally the research results were performed by combined analysis. Main plots were normal irrigation (I1) and cutting off irrigation during seed filling stage (I2), sub plots were nitrogen containing fertilizers: vermicompost, cattle manure and chemical nitrogen fertilizer (urea 46%) with three levels, containing 30, 60 and 90 kg.ha-1 of pure nitrogen. Effects of irrigation and nitrogen containing fertilizers on mucilage yield (P≤0.01) and mucilage percentage (P≤0.05) were significant. Interactions of irrigation × nitrogen containing fertilizers on biological yield and relative water content (P≤0.05), seed yield and 1000 seed weight (P≤0.01) were also significant. According to results of this research; the highest application level of vermicompost in normal irrigation condition, showed better results for production of isabgol plant in the research area.
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