Use of Phosphorus Solublizing Bacteria and Ammonium Phosphate Fertilizers in Winter Rapeseed Production

Subject Areas : Journal of Crop Ecophysiology

H.  Madani ¹ (Associate Prof., Department of Agronomy and Plant Breading, Arak Branch, Islamic Azad University, Arak, Iran)
G.R.  Naderi Brojerdi ² (Staff member of Department of Agronomy and Plant Breading, Arak Branch, Islamic Azad University, Arak, Iran)
A.  Pazoki ³ (Assistant Prof., Department of Agronomy and Plant Breading, Shahr- e -Rey Branch, Islamic Azad University, Shahr- e -Rey, Iran)

Received: 2010-11-06 Accepted : 2011-05-02 Published : 2011-01-21

Keywords: Rapeseed, Ammonium phosphate, Phosphorus suloblizing bacteria,

Abstract :

In order to study of the effect of phosphorus suloblizing bacteria (PSB) and ammonium phosphate (AP) fertilizer on rapeseed yield this field experiments was conducted at Research Farm Station of Arak Branch, Islamic Azad University. Ammonium phosphate applications were at 3 rates (0, 125 and 250 kg/ha) and phosphor suloblizing bacteria at 4 levels (not application, application at seeding date in autumn, application at spring and application both in the autumn and spring). The treatments were used as factorial on randomize complete block design arrangement. The results showed that the differences grain yield, no. of pod per plants, no. of seed per pod, 1000 seed weight and harvest index were significant at 5% levels of probability when were used. Generally, oil percent, oil yield, and biomass yield showed significant difference when biological phosphate treatments were applied. Therefore, the effect of interactions among treatments showed significant difference for grain yield, no. of pod per plants and harvest index.