ISSN 2414-8245 (Online), ISSN 2518-6116 (Print)                                                              Free and Open Access



Year 2019 , Volume  5, Issue 1 (Published)
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INFLUENCE OF INTEGRATED APPLICATION OF PHOSPHORUS ON WHEAT YIELD AND PHOSPHORUS UPTAKE
PARVEZ KHAN, WISAL MOHAMMAD AND MUHAMMAD IMTIAZ

INFLUENCE OF INTEGRATED APPLICATION OF PHOSPHORUS ON WHEAT YIELD AND PHOSPHORUS UPTAKE
ABSTRACT:

The solubility and discharge of phosphorus (P) form rock phosphate (RP) is enhanced through mixing of organic amendments. The incorporation of RP to soil may replace chemical phosphatic fertilizers and will reduce the cost of production. Response of wheat crop and P uptake was studied in soil application of phosphorus (P) sources i.e Triple super phosphate (TSP), Single supper phosphate (SSP) & Rock phosphate and Farmyard Manure (FYM) as well as the use of these in combinations in a pot study for two consecutive years. The treatments included; FYM (2.5 & 5 g kg-1 soil), TSP, SSP, RP @ (40 mg P kg-1soil), TSP + (2.5 g FYM kg-1 soil), TSP + (5 g FYM kg-1soil), SSP + (2.5 g FYM kg-1 soil), SSP + (5 g FYM kg-1 soil), RP + (2.5 g FYM kg-1 soil) and RP + (5 g FYM kg-1soil). The experimental layout was completely randomized design (CRD) with four replications. Highest grain (75.8 g pot-1) and straw (94.2 g pot-1) yields were achieved in integrated treatment of TSP + FYM (40 mg P from TSP along with 5g FYM kg-1 of soil). The increase in grain produce was 20% greater as compared to the application of sole TSP followed by SSP (40 mg kg-1 P). Likely, the P uptake in grain (359 mg P Pot-1) and straw (173 mg P pot-1) was also considerably (P ≤0.05) higher in the same treatment (TSP + FYM @ 5g kg-1 of soil). The grain yield of wheat in RP treatment was comparatively lower during 1st year than TSP and SSP treated pots. During 2nd year the wheat yield from the pots treated with 40 mg P in the form of RP + 5 g FYM kg-1 soil was higher than sole TSP and SSP treatment. The efficiency of RP, TSP and SSP was enhanced mixing by FYM that improved the wheat productivity in alkaline calcareous soils.

 

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