Effect of compilation organic and mineral fertilizer on production parameters and harvest index of cowpea (Vigna unguiculata L.)

Subject Areas : Journal of Plant Ecophysiology

A. Mosavai ¹ ( گروه زراعت و اصلاح نباتات، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران )
A. Shokohfar ² ( گروه زراعت و اصلاح نباتات، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران )

Received: 2016-02-03 Accepted : 2016-10-04 Published : 2016-09-01

Keywords: Vermicompost, Grain yield, Harvest index, Number of pod, Cowpea,

Abstract :

In order to investigate the effects of application of Vermicompost and Ammonium phosphate on yield and yield components of Vinga unguicuata a factorial experiment was conducted in Ahwaz in 2013-2014 based on randomized complete block design with three replications. Treatments were three levels of Vermicompost (0,4,8 ton/ha) and Amonium phosphate (0,75,150 kg/ha). Results shown that simple and interaction effects were significant (P>0.001). Application of 8 ton/ha Vermicompost resulted higher seed yield (291 gr/m2) comparing to treatmens with no Vermicompost (197gr/m2) and seed yield in Amonium phosphate was (247gr/m2). Application of integrated nutrition management (Vermicompost+Amonium phosphate) caused higher leaf and stem dry weight in Cowpea. Also due to higher photosynthesis and vegetative growth capacity as results of fertilizer treatments total yield, number of pods and number of seeds per pods were significantly increased. The highest seed yield was 343.3 g/m2 in treatment of integrated nutrient management including 8 ton/ha Vermicompost with 150 kg/ha Amoniumphosphate and the lowest seed yield was 197.2 g/m2 in control treatment.The highest pod number per plant was achieved in treatments with 150 kg/ha amoniumphosphate (13 pod per plant) compare to control treatment (7 pod per plant).