نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران
2 گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران .
3 گروه صنعتی پژوهشی فرهیختگان زرنام، استان البرز، شهر هشتگرد، ایران.
4 گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
An experiment was conducted to investigate the effect of different levels of amino acid-rich organic soluble fertilizers on the concentration of nutrients in corn plants and soil after harvest in a factorial manner in a completely randomized design with three replications under greenhouse conditions. The treatments included: control (C); 3% iron-containing ferrous sulfate solution (S); organic fertilizer without iron enrichment (O); separate application of organic fertilizer without iron and 3% ferrous sulfate (OS); organic fertilizer enriched with 3% iron from ferrous sulfate (A); organic fertilizer enriched with 1.5% iron from Fe-EDTA and 1.5% from ferrous sulfate (AE); organic fertilizer enriched with 1.5% iron from Fe-DTPA and 1.5% from ferrous sulfate (AD); and organic fertilizer enriched with 1.5% iron from Fe-EDDHA and 1.5% from ferrous sulfate (AH). These fertilizers were applied via fertigation at two levels, 50 and 100 L ha⁻¹, corresponding to 80 and 160 mg Fe per 3 kg of soil, respectively. The results showed that most fertilizer treatments increased the concentration of nitrogen, phosphorus, potassium, calcium, magnesium, copper and zinc in the corn shoot compared to the control; however, the increase in the soil was less and only some treatments had a significant difference with the control. The AH100 treatment showed the best efficiency, so that in this treatment the concentration of iron and copper (134.75, 8.11 mg/kg dry tissue), nitrogen (2.29%), phosphorus (0.25%), potassium (2.27%), calcium (0.34%), and magnesium (0.17%) increased by 54.3, 15 17.7, 19.2, 17.4, 17.6, 14.6% respectively compared to the control in the shoot.
کلیدواژهها [English]