نوع مقاله : مقاله پژوهشی
نویسندگان
1 محقق شیمی و حاصلخیزی خاک، گروه تحقیقات به زراعی- مٰوسسه تحقیقات و آموزش نیشکر خوزستان- اهواز- ایران
2 محقق آبیاری و زهکشی، گزوه تحقیقات آبیاری و زهکشی، مؤسسه تحقیقات و آموزش نیشکر خوزستان، اهواز، ایران
3 دکتری شیمی و حاصلخیزی خاک، رئیس اداره آب و خاک، مدیریت مطالعات کاربردی کشت و صنعت نیشکر حکیم فارابی خوزستان، اهواز، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The purpose of this study was to comparison of the of phosphorus and potassium availability in the soil and their uptake by sugarcane under subsurface drip irrigation and furrow irrigation conditions. This research was conducted in two sugarcane fields (subsurface drip irrigation and furrow irrigation) located in Hakim Farabi Agro-Industry. In this study, soil and plant sampling was done at two and four months after cultivation and the concentration of available phosphorus and potassium in the soil, shoot dry weight and the concentration of phosphorus and potassium in the sugarcane shoot were measured at two and four months. Also, the phosphorus and potassium uptake tiin sugarcane shoot were calculated. Statistical analysis and average data comparison was done by t test. The results showed that at two months after cultivation, under subsurface drip irrigaon condition, the phosphorus available concentration in the soil, the concentration and uptake of phosphorus (19.2%) and potassium (22.9%) in the sugarcane shoot were significantly more than the condition of furrow irrigation. Also, at four months after cultivation, under the subsurface drip irrigation condition, the available concentration of phosphorus and potassium in the soil and phosphorus (13.9%) and potassium (14.8%) uptake in shoot were significantly more than the furrow irrigation condition. Therefore, it can be concluded that in the early stages of plant growth (two and four months after cultivation), the phosphorus and potassium availability in the soil and their uptake by sugarcane plant can be improved under subsurface drip irrigation conditions.
کلیدواژه‌ها [English]
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