Effect of integrate nutrition of chemical and animal manures on yield and yield components of spring safflower

Subject Areas : Journal of Plant Ecophysiology

M. Ghanbari ¹ , M. Mirzakhani ² , A. Hashemi ³

1 - گروه زراعت، واحد نراق، دانشگاه آزاد اسلامی، دانشجوی کارشناسی ارشد زراعت، نراق، ایران
2 - گروه زراعت، واحد فراهان، دانشگاه آزاد اسلامی، فراهان، ایران.
3 - گروه زراعت، واحد نراق، دانشگاه آزاد اسلامی، نراق، ایران

Received: 2015-04-26 Accepted : 2015-07-16 Published : 2017-02-19

Keywords: nitrogen, Oil content, Phosphorus, Safflower, Nitrogen use efficiency,

Abstract :

Increasing overuse of chemical fertilizers has been causes environmental pollution, degradation of soil and crops. In order to study the effect of integrated application of chemical and animal manures on yield and yield components of spring safflower, the study was carried out in Fatholmobin field of Kashan in 2014. A factorial arrangement of treatment in a randomized complete block design with three replications was used. Chemical fertilizer treatment (Control, 50 kg ha-1 of nitrogen + 25 kg ha-1 of P2O5, 100 kg ha-1 of nitrogen + 50 kg ha-1 of P2O5, 150 kg ha-1 of nitrogen + 75 kg ha-1 of P2O5) and animal manure treatment (Control, 20 ton ha-1, 40 ton ha-1), were assigned in plots. Stem height, number of branches, number of bolls per plant, grains per boll, boll harvest index, 1000 grain weight, grain yield, protein content, phosphorus absorption, nitrogen agronomy efficiency and nitrogen use efficiency were determined. Results indicated that the interaction effects between chemical fertilizer and animal manure on 1000 grain weight, grain yield, protein content, phosphorus absorption, nitrogen agronomy efficiency and nitrogen use efficiency were significant. The highest and lowest of grain yield 1031 and 268 kg ha-1 were obtained in 150 kg ha-1 of nitrogen + 75 kg ha-1 of P2O5 + 20 t ha-1 of animal manure and without application of the chemical and animal manure, respectively.