نوع مقاله : مقاله پژوهشی
1 دانشیار گروه مرتع و آبخیزداری (مهندسی طبیعت)، دانشکده کشاورزی ، دانشگاه فسا، فسا، ایران.
2 بخش علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه شیراز
3 مرکز نوآوری گروه صنعتی پژوهشی فرهیختگان زرنام، استان البرز، شهر هشتگرد، ایران.
4 مرکز نوآوری گروه صنعتی پژوهشی فرهیختگان زرنام، استان البرز، شهر هشتگرد، ایران
عنوان مقاله [English]
The present research was conducted to investigate the soil and foliar application of Zargreen organic compound on the water use efficiency, yield and yield components of wheat under drought stress in the greenhouse conditions of the Faculty of Agriculture of Shiraz University.The treatments include four levels of foliar application of Zargreen amino acid fertilizer (with concentrations of 0, 2.5, 5 and 7.5 liters per thousand), four levels of soil application of fertilizer (zero, 5, 10 and 20 liters per hectare) and three levels of water contents (Field Capacity (without stress), 75 and 50 percent of the Field Capacity). Soil treatment before planting and foliar spraying were used 3 times, at 1.5, 3 and 4 months after planting.
Adding 20 liters per hectare of fertilizer increased by 13 percentage the number of spikes compared to the control. Also, the number of seeds per spike increased by 16 percentage compared to the control with foliar spraying of 7.5 liters per thousand fertilizers. The use of 5, 10 and 20 liters per hectare of fertilizer caused a significant increase of 22, 25 and 31 percentage in the number of seeds per spike compared to the control. The highest chlorophyll was obtained at all levels of drought stress after adding 20 liters of fertilizer per hectare, and at the stress level of 75 percentage of the field capacity, plant chlorophyll increased by 38 percentage compared to the control. The highest water use efficiency was observed with the addition of 20 liters per hectare of fertilizer and at the highest level of drought stress, and foliar spraying of 5 liters per thousand fertilizers. Application of organic fertilizer at all levels of drought stress prevented the decrease of dry weight of wheat.