EFFECT OF PLANTING DATES AND ORGANIC AND FOLIAR FERTILIZERS ON THE LEVELS OF SOME CHEMICAL COMPOUNDS OF PORTULACA OLERACEA L.

Abstract

The study was carried out in the wooden canopy of the gardening station in Hawija district / Kirkuk governorate during the year 2021-2022, as the seeds of the purslane plant Portulaca oleracea L. were planted in two dates, the first planting date 15/3 and the second 1/4. The plants were treated with twenty-five fertilizer treatments that resulted from the combination of five levels of adding organic fertilization (O0 = without organic fertilization, O1 = fertilization with 5% poultry waste, O2 = fertilization with poultry waste at a rate of 7.5%, O3 = fertilization with sheep waste at a rate of 5% , O4 = fertilizing with sheep waste by 7.5%), and five treatments of foliar spraying with mineral fertilizers (S0 = without spraying, S1 = nitrogen, S2 = phosphorous, S3 = potassium, S4 = magnesium), and the seeds were planted in 5 kg pots, and the experiment was designed The factorial experiment system inside the splintered panels according to the design of randomized complete sectors, and the levels of the following compounds (berberine, vitamin C, carotenoids, a-linolenic acid, ecospentaenoic and Docosahexaenonic) were estimated. Early 3/15, organic fertilization O3 and S2 foliar treatment in the levels of berberine, a-linolenic acid, Ecospentaenoic and Docosahexaenonic compounds, while the date 1/4 and O4 and S4 treatments were higher in the concentration of vitamin C and carotenoids. The interactions of these superior transactions also outperformed each other in achieving the best values for the studied traits.