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Foliar Applied Phosphorus as Top Up Approach of Soil Applied Phosphorus to Wheat under Glasshouse Conditions

Foliar Applied Phosphorus as Top Up Approach of Soil Applied Phosphorus to Wheat under Glasshouse Conditions

Raza Ullah Khan*, Ahmad Khan, Mohammad Zameer Khan, Fayyaz Hussain and Sonia Saba 

LRRI, National Agricultural Research Centre (NARC), Park Road, Islamabad, 45500, Pakistan.

razahsan9@gmail.com  

ABSTRACT

An experiment was carried out in glasshouse to evaluate effect of phosphorus (P) applied either through soil or foliar or proportional combination thereof. Treatments consists of whole P applied as soil (PS =100%), foliar (Pf=100%) or different combination (PS75:Pf25, PS50:PF50, PS25:Pf75) to wheat grown in 5 kg soil in plastic container. Data on plant growth parameters (plant height, biomass and grain yield) was collected at the end of the experiment taking as an average of the three replications. Nutrients such as K, P and selected micronutrients concentration in shoot and root were determined once after harvest of crop and shown as mean of three replications. Results showed that different combination of P yielded significant response in plant growth parameter. It was found that split application of P equally as soil and foliar caused an increase in biomass and grain yield. With respect to post harvest P and K concentration in plant parts, almost similar trend was observed showing maximum concentration of P and K in shoot and root of plant treated with P equally as soil and foliar. An increase in P translocation from root to leaf was observed in this treatment. Besides, plant other parameters such as chlorophyll contents also increased when P was equally applied as soil and foliar. 

 

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Pakistan Journal of Zoology

December

Vol. 50, Iss. 6, Pages 1999-2398

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