بررسی تاثیر سطوح مختلف فسفر و روی بر خصوصیات کمی و کیفی گل مریم

In order to study on the effect of different levels of phosphorus and zinc on quality and quantity characteristics of tuberose (Pollianthes tuberosa L.) , field experiments with 4 levels of phosphorus (0,50,100,150 kg.ha-1) from triple super phosphate fertilizer and 3 levels of zinc sulfate (0,20,40 kg.ha-1 ) with 3 replications in 2 years, was carried out in factorial with base of randomized complete block design at 11ا m2 Plot .Results of 2 years showed that P100 Zn20 in 2 years increased significantly Panicle length, shoot diameter, floret length by 21%, 25% and 14% respectivly.For study on the effect of zinc foliar application and comparison whit basically use of it , 6 treatments as: 3 levels of basically (Zn1 Zn2 Zn3 ) use of zinc sulfate (0-20-40 kg.ha- 1)and 3 levels of foliar application ( Zn4 Zn5 Zn6) of zinc sulfate(1-2-3 gr.lit-1) was studied at 3 replications as randomized complete block design. Results of 2 years showed that Zn2 (20 kg.ha-1 zinc sulfate) increased significantly flower height, shoot diameter, floret number, flower fresh weight, panicle length , plant phosphorus and corm phosphorus by 8,17,12,17,14,13 and 16 Percent, respectivly. In order to study on the effect of different methods of phosphorus biofertilizer use along with %50 of recommended chemical fertilizer (50 kg.ha-1 phosphorus) in soil and compare it with usual phosphorus fertilizer recommended (100 kg.ha-1 phosphorus) was carried out with 5 treatments and 3 replications in randomized complete block design. Treatments were as:1)Control(P1), 2)Recommended chemical fertilizer as 100 kg.ha-1 phosphorus in soil (P2), 3)Phosphorus biofertilizer seed coating + %50 recommended of chemical phosphorus fertilizer in soil (P3), 4) Phosphorus biofertilizer seed coating + side dressing + %50 recommended of chemical phosphorus fertilizer in soil (P4), 5)Phosphorus biofertilizer side dressing + %50 recommended of chemical phosphorus fertilizer in soil (P5). Results of 2 years showed that P5 (phosphorus biofertilizer side dressing + %50 recommended of chemical phosphorus fertilizer) increased significantly flower height, vase life, flower and corm phosphorus uptake by 4,6,30 and 80 Percent, respectivly. Key words: phosphorus, zinc, triples super phosphate, zinc sulphate, phosphorus biofertilizer, tuberose, yield and growth, zinc foliar application, fertigation.

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پولیانتس ، ویژگی های زراعی ، روی ، فسفر ، کود های شیمیایی