Liquid organic fertilizer (LOF) research has revealed its obvious benefits to plant productivity and soil fertility. These benefits are noticeable in the form of increased soil water holding capacity and plant nutrient availability. These alterations may also boost a plant's ability to withstand drought stress. The results indicated that foliar application of LOF at 1.50 L/fed was higher effective regarding the studied parameters under application of 100% water requirement (WR).The recorded sunflower yield parameters were significantly increased by application of LOF compared with the control. The foliar application of LOF increased water use efficiency for sunflower at the applied irrigation treatments. Under water stress, the application of LOF at 1.50 L/fed produced better agronomic performance of yield components, carbohydrates, protein, oil, flavonoids and antioxidant activity (DPPH radical scavenging) of sunflower seeds over remaining treatments. This dosage could be used for optimum sunflower production.
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Hellal et al. (2022) studied this question.
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