Year: 2021
Type: article
Abstract: IntroductionA round the globe as population is increasing with the passage of time so dietary habits of individuals is also changing.Demand for food, fuel and feed is increasing associated with urbanization so there is huge pressure on agriculture to combat this type of situations ( Jouffret et al., 2011).In Pakistan agriculture is the occupation through with 70 % of the population is involved directly or indirectly but still Abstract | Phosphorus (P) is a limited natural reserve and a major limiting factor for global crop production.The adverse soil biogeochemical characteristics of alkaline-calcareous soils make P the least available macronutrient.Therefore, alternative P source such as rock phosphate (RP) can offer a promising choice for sustainable P supply under P stress environment.A pot research was executed to explore the response of sunflower (Helianthus annuus L.) to sparingly soluble P sources grown under P deficient environment at research area, College of Agriculture, University of Sargodha during 2018.The experiment was laid out in a Completely Randomized Design (CRD) with eight treatments replicated thrice.The treatments consisted of T 1 = NK + P 0 (Control); T 2 = NPK (Recommended dose); T 3 = NK + Rock phosphate at 7 g pot -1 ; T 4 = NPK + Rock phosphate at 7 g pot -1 ; T 5 = NK + Rock phosphate at 7 g pot -1 + Wheat straw at 14 g pot -1 ; T 6 = NK + Rock phosphate at 7 g pot -1 + Wheat straw at 28 g pot -1 ; T 7 = NK + Rock phosphate at 7 g pot -1 + Rice straw at 14 g pot -1 ; T 8 = NK + Rock phosphate at 7 g pot -1 + Rice straw at 28 g pot -1 .Observations on various growth and yield parameters of crop were recorded using standard procedures and noted data was examined with a statistical software Statistix 8.1 analysis of variance technique and significant of treatments was tested using LSD test at probability level of 5%.The maximum fresh biomass (95.50 g), dry biomass (25.73 g), plant height (110.90 cm), head size (21.36 cm), number of achene haed -1 (864) and achene yield plant -1 (32.16 g) of sunflower was observed with application of NK + Rock phosphate at 7 g pot -1 + Wheat straw at 28 g pot -1 (T 6 ) in cultivar Hysun-33.While, lowest value of fresh biomass (72.73 g), dry biomass (15.72 g), head size (16.63 cm), achene head -1 (711), achene yield plant -1 (18.36 g) was noted under NK + P 0 (T 1 ) treatment in Agwara-3.Among the tested sunflower cultivars, Hysun-33 showed superiority over Agwara-4.
Authors: Hafiz Hammad Ahmad, Mukkram Ali Tahir, Noor-us Sabah, Ghulam Sarwar, Sher Muhammad, Muhammad Aftab, Muhammad Zeeshan Manzoor, Aneela Riaz
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W3133855447