Effect of time of foliar application and type of liquid fertilizer on quantitative and qualitative yield of ratoon rice (var. Tarom)

Subject Areas : Journal of Plant Ecophysiology

M. Joukar ¹ , M. Nasiri ² , N. Kheyri ³ , M. Habibi ⁴

1 - گروه زراعت و اصلاح نباتات، واحد چالوس، دانشگاه آزاد اسلامی، چالوس، ایران
2 - مؤسسه تحقیقات برنج کشور- معاونت مازندران، مازندران، ایران
3 - باشگاه پژوهشگران جوان و نخبگان، واحد آیت الله آملی، دانشگاه آزاد اسلامی آمل، ایران
4 - گروه زراعت و اصلاح نباتات، واحد چالوس، دانشگاه آزاد اسلامی، چالوس، ایران

Received: 2015-03-19 Accepted : 2015-05-08 Published : 2016-09-01

Keywords: foliar application, Yield components, Amylose, Grain length, Phosphorus biofull,

Abstract :

In order to study the effects of time of foliar application and type of liquid fertilizers on yield, yield components and qualitative traits of ratoon rice (var. Tarom), a field experiment was conducted as split-plot in randomized complete block design with three replicaties in Rice Research Institute of Iran, Deputy of Mazandaran in 2010. Treatments were time of liquid fertilizers application in three levels T1: Tillering+ Heading, T2: Heading+ Flowering and T3: Tillering+ Heading+ Flowering as main plot and type of liquid fertilizer in seven levels F1: Potassium biofull, F2: Phosphorus biofull, F3: Growth fertilizer of specific for rice, F4: Zinc of mehrvarzan, F5: Microfull of mehrvarzan, F6: Potassium biofull + Phosphorus biofull and F7: Control and no fertilizer application as sub plot. Results showed that the time of fertilizer application had no significant effect on yield, yield components and qualitative traits of grain. The type of liquid fertilizer had a significant effect on tiller number per hill, shell percentage, grain length after cooking and amylose content. The interaction effect between type and time of liquid fertilizer application on grain length after cooking was significant. The maximum tiller number was obtained with Potassium biofull+Phosphorus biofull application. The lowest shell percentage (18.67%) and the highest amylose content (21.56%) were obtained with phosphorus biofull application. The longest grain after cooking was obtained with phosphorus biofull application in time of tillering+heading with 12.97 mm. It seems that, the phosphorus biofull was considered as the best fertilizer for increasing the quality of ratoon rice.