Effect of Biological and Mineral Phosphorus Fertilizers together with Microelement Sprayings on Yield and Component of Yield in Pinto Bean (Phaseolus vulgaris L.)
Subject Areas : Journal of Crop Ecophysiologyعلی Nasrollahzadeh Asl 1 , H. Gorbannezhad 2
1 - Assistant Prof., Department of Agronomy, College of Agriculture, Khoy Branch, Islamic Azad University, Khoy, Iran
2 - Former MSc. Student of Agronomy, Khoy Branch, Islamic Azad University, Khoy, Iran
Keywords: yield, Spraying, Micro elements, Biological and mineral fertilizers,
Abstract :
In connection with sustainability of agriculture the effect of biological and mineral phosphorus fertilizers together with spraying plants with microelements on yield and yield components of pinto bean was investigated in an experiment at the Research Station of Rahal Agricultural College in Khoy city in 2012 growing season. The experiment was used factorial based on randomized complete block design with three replications and two factors. The first factor consisted of phosphorus fertilizer in four levels (without using of fertilizer, as ontrol; barvar-2-phosphate biofertilizer, barvar-2phosphate biofertilizer together with super phosphate at the rate of 100 kg.ha-1 and only super phosphate at the rate of 200 kg.ha-1) and Second factor consisted of micro element spraying of plants with liquid fertilizer in three levels (without spraying, as control; micro element spraying with concentration of 2% and micro elements spraying with concentration of 4%). The results showed that phosphorus fertilizers, affected except number of grains per pod and 100 seed weight, the plant height, number of main branches per plant, number of leaf per plant, number of pods per plant, harvest index and grain yield significantly. Maximum grain yield were obtained from treatments of super phosphate at rate of 200 kg.ha-1 and barvar-2 phosphate biofertilizer together with super phosphate at rate of 100 kg.ha-1. However, the yields of these two treatments were statistically the same. Therefore, reduce use of chemical fertilizers and protect of natural resources, the use of barvar-2 phosphate biofertilizer is advisable. The effect of spraying plants with micro elements on traits, except number of grains per pod and 100 seed weight, like plant height, number of main branches per plant, number of leaf per plant, number of pods per plant, harvest index and grain yield were significant. Maximum grain yield was also obtained from spraying plants by micro elements with density of 2% and 4% and these two experimental treatments were placed in the same statistical group.