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اثر تیمارهای مختلف کودی در افزایش توان تولید چوب صنوبر | ||
| تحقیقات جنگل و صنوبر ایران | ||
| مقاله 17، دوره 22، شماره 3، آذر 1393، صفحه 550-557 اصل مقاله (389.1 K) | ||
| نوع مقاله: علمی- پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijfpr.2014.12440 | ||
| نویسندگان | ||
| ابراهیم لشکربلوکی* 1؛ علیرضا مدیررحمتی2؛ احسان کهنه3؛ رضا باقری4؛ سیدعبداله موسوی کوپر5؛ سیده زهرا سیدجوادی6 | ||
| 1مربی پژوهشی، مرکز تحقیقات گیلان | ||
| 2دانشیار پژوهشی، موسسه تحقیقات جنگلها و مراتع کشور | ||
| 3کارشناس ارشد پژوهش، مرکز تحقیقات گیلان | ||
| 4کارشناس ارشد پژوهش، موسسه تحقیقات جنگلها و مراتع کشور | ||
| 5استادیار پژوهش، مرکز تحقیقات گیلان | ||
| 6کارشناس کتابدار، مرکز تحقیقات برنج | ||
| چکیده | ||
| این پژوهش به‌منظور بررسی اثر تیمارهای مختلف کودی بر کلنPopulus deltoides 69/55 در اراضی ایستگاه تحقیقاتی زراعی فخرآباد لشت‌نشاء در سال‌های 1386 تا 1390 اجرا شد. قالب آماری طرح بلوک‌های کامل تصادفی در سه تکرار و پنج تیمار کود بود. تیمارهای کودی شامل NPK94, NPK47, NP94, NP47(47 و 94 کیلوگرم ترکیب کودی در هکتار) و شاهد بود. پس از انتخاب و آماده‌سازی زمین، نهال‌های یک‌ساله براساس نقشه کاشت غرس شدند. در پایان هر فصل رویشی، کمیت‌های رشد شامل قطر برابرسینه و ارتفاع درختان اندازه‌گیری شد. داده‌های به‌دست‌آمده بااستفاده از نرم‌افزار SAS، مورد تجزیه‌وتحلیل آماری قرار گرفتند. نتایج این بررسی نشان داد که مقادیر کود مصرفی را می‌توان در سه گروه دسته‌بندی نمود. تیمار یک (94 کیلوگرم در هکتار NPK) با تولید 96/27 مترمکعب چوب در هکتار در سال در گروه نخست و تیمار چهار (47 کیلوگرم در هکتار NP) با تولید 62/23 مترمکعب در گروه آخر قرار گرفت. | ||
| کلیدواژه‌ها | ||
| تغذیه؛ تولید در هکتار؛ صنوبر؛ فسفر؛ کود‌دهی؛ نیتروژن | ||
| عنوان مقاله [English] | ||
| Effects of different fertilizer treatments on Poplar wood production | ||
| نویسندگان [English] | ||
| Ebrahim Lashkarbolouki1؛ Alireza Modirrahmati2؛ Ehsan Kahneh3؛ Reza Bagheri4؛ Seyyed Abdollah Mosavi Qupar5؛ Seyyedeh Zahra Seidjavadi6 | ||
| 1Senior Research Expert, Agricultural and Natural Resources Research Center of Guilan Province, Rasht, I.R. Iran | ||
| 2Associate Prof., Research Institute of Forests and Rangelands, Tehran, I.R. Iran. | ||
| 3Senior Research Expert, Agricultural and Natural Resources Research Center of Guilan Province, Rasht, I.R. Iran | ||
| 4Eexpert library, Research Institute of Rice, Guilan Province, Rasht, I.R. Iran | ||
| 5Assistant Prof., Agricultural and Natural Resources Research Center of Guilan Province, Rasht, I.R. Iran | ||
| 6Senior Research Expert, Research Institute of Forests and Rangelands, Tehran, I.R. Iran. | ||
| چکیده [English] | ||
| To study the effect of different fertilizer treatments on Populus deltoides clone 69/55, a 4-year study during 2007-2011 was conducted within two-ha site in the Fakhrabad agricultural research station in Lashte-Nesha in Guilan province. Following the site preparation, the previously-bred seedlings were planted within a randomized complete block design with three replications and five fertilization treatments. Treatments included NPK94, NPK47, NP94, NP47 as well as a control treatment. At the end of each growing season, factors including the diameter at breast height (dbh) and height growth of trees were measured. At the end of the 4-year period, the average rates of the measured parameters were analyzed. Comparison of total average growth, average annual growth and current growth was showed three distinct groups based on the amount of applied fertilizer. The first group was the treatment 1 (94 kg ha‾ ¹ NPK) produced 27.96 m³ ha‾ ¹ year‾ ¹, whereas the treatment 4 (47kg ha‾ ¹ NP) was grouped as the last one with its produced 23/62 m³ ha‾ ¹ year‾ ¹. | ||
| کلیدواژه‌ها [English] | ||
| Nutrition, production in ha, Poplar, Phosphorus, Fertilization, nitrogen | ||
| مراجع | ||
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