INFLUENCE OF POULTRY MANURE AND POTASSIUM ON GROWTH AND YIELD OF SUNFLOWER GROWN UNDER WATER .....

During the 2020/2021 growing season, a field experiment was conducted at the National Research Center's Research and Production Station in Nubaria District, Beheira Governorate, Egypt, to investigate the effects of organic (poultry manure) and inorganic (potassium nitrate) fertilisers on sunflower growth parameters under water stress conditions. The main plots had Poultry manure (0, 2, 4, 6 tonne fed-1) put to the soil, whereas the sub-plots had potassium nitrate treatments administered as a foliar spray at rates of (0, 1, 2, and 3 percent). The rise in poultry manure rates was associated with a considerable increase in chlorophyll content, relative water content, and total leaf area, according to the findings. The maximum proline content values were recorded for the control treatment, and the least values were recorded with the application of 6-ton poultry manure fed-1 combination with 3.0% KNO3 foliar spray under sufficient and deficit irrigation treatments, according to the data. According to the findings, increasing poultry manure rates was linked to a significant increase in sunflower plant height, head weight, head diameter, 100 seed weight, and grain production. The application of 6.0 tonne fed-1 poultry manure with a foliar spray KNO3 at a rate of 3.0 percent under water stress conditions resulted in the highest values of sunflower growth and yield parameters.

Please see the link :- https://www.ikprress.org/index.php/JOGEE/article/view/7463