Effect of the integration between inorganic nitrogen, compost and potassium humate on wheat grown in sandy soil —El Quntra— North Sinai
摘要
Wheat stands as a pivotal crop within the grain crops, playing a crucial role in global food supply. This study investigates optimal fertilization techniques to enhance wheat yields on recently reclaimed soils while minimizing environmental impacts associated with mineral fertilizers. This is lead to reduce environmental impacts of mineral fertilizers. Various treatments were tested, including nitrogen application rates (0, 190, and 285 kg N ha− 1), potassium humate dosages (0 and 25 kg ha− 1), and compost levels (0, 15, and 30 m3). The results indicated that a combination of 30 m3 of compost, 285 kg of nitrogen, and 25 kg of potassium humate per hectare significantly boosted grain, straw, and biological yield. Interestingly, while under maximum compost treatment grain yield did not differ markedly either at rate of 190–285 kg N ha− 1, the highest overall crude protein production was recorded. Alternatively, the combination of 30 m3, 190 kg and 25 kg ha− 1 for organic fertilizer, nitrogen, and humic acid, respectively, exhibited superior internal nitrogen use efficiency, proving beneficial in terms of nutrient concentration in the grains.