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مقایسه اثرات کاربرد یک کود آلی-معدنی کندرهش با کودهای رایج بر برخی خصوصیات حاصلخیزی خاک زیر کشت ذرت | ||
| تحقیقات آب و خاک ایران | ||
| دوره 57، شماره 3، خرداد 1405، صفحه 647-669 اصل مقاله (1.4 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2026.408350.670075 | ||
| نویسندگان | ||
| احمد حیدری* 1؛ حسین میرسیدحسینی2؛ آیدا بخشی خرمدره2؛ شاکر عمری زاده2؛ نعمتالله نظری3؛ آرمین صانعی4 | ||
| 1گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه تهران، کرج، ایران | ||
| 2گروه علوم و مهندسی خاک، دانشکده مهندسی و فناوری کشاورزی، دانشگاه تهران، تهران، ایران. | ||
| 3جهاددانشگاهی استان سمنان، سمنان، ایران | ||
| 4جهاد دانشگاهی واحد استان سمنان | ||
| چکیده | ||
| هدف این مطالعه بررسی تاثیر کود آلی-معدنی کندرهش بر حاصلخیزی خاک در قالب دو آزمایش با چهار تیمار و چهار تکرار بود. در آزمایش اول کودهای NPK مورد نیاز ذرت، به همراه kg/ha 0، 300، 500 و 800 کود کندرهش، و در آزمایش دوم مقدار kg/ha 500 کود کندرهش با 0، 50، 75 و 100 درصد از کودهای NPK مورد نیاز ذرت به کار رفت. نتایج آزمایش اول نشان داد که در مرحله میان-دوره نیتروژن، فسفر و پتاسیم قابل دسترس، EC، pH، فسفر، پتاسیم و نیتروژن کل همگی دارای اختلاف معنیدار (p=99%) هستند. ولی در پایاندوره رشد نیتروژن خاک، و نیتروژن کل گیاه فاقد اختلاف معنیدار بودند. ولی اختلاف اغلب خصوصیات شامل فسفر و پتاسیم قابل دسترس pH، EC، و درصد فسفر و پتاسیم گیاه معنیدار بود. نتایج آزمایش اول نشان داد که استفاده از کود آلی-معدنی کندرهش به همراه کودهای رایج باعث بهبود اغلب خصوصیات حاصلخیزی خاک در تیمارهای آزمایش (T1، T2 و T3) نسبت به شاهد (B) شد. نتایج آزمایش دوم نشان داد که تیمار شاهد کود کندرهش (B+) به تنهایی، از نظر تامین نیتروژن خاک و گیاه، برتر از تیمارهای R1، R2 و R3 بود. از نظر فسفر خاک و گیاه کمتر از R1، ولی بیشتر از R2 و همتراز با R3 بود. از نظر تامین پتاسیم خاک اگرچه B+پایینتر از سایر تیمارها بود، ولی از نظر پتاسیم کل گیاه همتراز با R3، و کمی پایینتر از R1 و R2 بود. با توجه به نتایج این تحقیق کود کندرهش به عنوان کود مجزا و کود مکمل قابل توصیه است. | ||
| کلیدواژهها | ||
| کارآیی کود؛ تغذیه ذرت علوفهای؛ نیاز کودی؛ کود کندرهش | ||
| عنوان مقاله [English] | ||
| Comparing the Effects of an Organic-Mineral Fertilizer and Conventional Fertilizers on Some Soil Fertility Characteristics under Corn Cultivation | ||
| نویسندگان [English] | ||
| Ahmad Heidari1؛ Hosein Mir Seyed Hoseini2؛ Aida Bakhshi Khorramdarreh2؛ Shaker Omarizadeh2؛ Nematollah Nazari3؛ Armin Saneei4 | ||
| 1Soil Science Departmen, Faculty of Agriculture, University of Tehran, Karaj, Iran | ||
| 2Department of Soil Science, Faculty of Agricultural Engineering and Technology, University of Tehran, Tehran, Iran. | ||
| 3Research, Academic Center for Education, Culture and Research (ACECR), Semnan Branch, Iran | ||
| 4Academic Center for Education, Culture, and Research (ACECR), Semnan Branch, Iran | ||
| چکیده [English] | ||
| The aim of this study was to investigate the effect of slow-release organic-mineral fertilizer on soil fertility in two experiments with four treatmnts in four iterations. In the first experiment, the required NPK fertilizers for corn were used with 0, 300, 500 and 800 kg/ha of slow-release fertilizer and in the second experiment, 500 kg/ha of it was used with 0, 50, 75 and 100% of NPK. The results of the first experiment indicated that, at the intermediate stage, there were significant differences (p=99%) in the available nitrogen, phosphorus, potassium, electrical conductivity (EC), pH, and total plant nitrogen. At the end stage, significant differences were also observed in soil and total plant nitrogen. Additionally, the ifferences in characteristics such as available phosphorus and potassium, pH, EC, as well as plant phosphorus and potassium, were significant. Results of first experiment demonstrated that the application of organic-mineral fertilizer, in combination with conventional fertilizers, improved soil characteristics in the treatments (T1, T2, and T3) compared to the control (B). In the second experiment, the control treatment (slow-release fertilizer (B+)) outperformed treatments R1, R2, and R3 regarding soil and plant nitrogen. However, for soil and plant phosphorus levels, B+ was lower than R1, higher than R2, and equal to R3. Although the soil potassium supply from B+ was lower than the other treatments, the total plant potassium was comparable to R3 and slightly lower than R1 and R2. Based on results, the slow-release fertilizer can be recommended as both standalone and supplementary fertilizer. | ||
| کلیدواژهها [English] | ||
| Fertilizer efficiency, Forage corn nutrition, Fertilizer requirement, Slow release fertilizer | ||
| مراجع | ||
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