نوع مقاله : فنی ترویجی

نویسنده

استادیار پژوهش مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی صفی آباد دزفول،سازمان تحقیقات، آموزش و ترویج کشاورزی.

چکیده

 
بهبود کیفیت خاک برای توسعه پایدار کشاورزی و تامین امنیت غذایی جمعیت رو به رشد موضوعی انکار ناپذیر است. کربن آلی خاک عاملی تعیین کننده بر ویژگی­های شیمیایی، فیزیکی و زیستی خاک و نیز کمیت و کیفیت عملکرد است. بررسی داده­ها نشان می­دهد که کربن آلی خاک های شمال خوزستان به واسطه اعمال مدیریت­های نامناسب سیر نزولی داشته، به طوری که مقدار کربن آلی خاک در اغلب اراضی کمتر از یک درصد می­باشد. این در حالی است که حدود 60 درصد خاک­های کشور دارای کربن آلی زیر یک درصد هستند. آگاهی کشاورزان به نقش کربن آلی خاک در اراضی، آنها را قادر می­سازد که بتوانند تصمیم­های درستی برای پذیرش عملیات مدیریتی مناسب برای بالا بردن حاصلخیزی خاک، که مستلزم بکارگیری مدیریت خاک و محصول نظیر مدیریت تلفیقی حاصلخیزی خاک و تغذیه گیاهی در رویکردی جامع نگر و مداوم است، بگیرند. خاطر نشان می­شود میزان کربن آلی را می توان با اعمال ضریبی (724/1 ) به تعداد ماده آلی خاک تبدیل نمود. 

کلیدواژه‌ها

عنوان مقاله [English]

Periodic Study of Soil Organic Carbon in Plains of Khuzestan and Providing Extensions

نویسنده [English]

  • kamran mirzashahi

Assistant professor, Research Center and Agricultural Education and Natural Resources of safiabad, Dezful - Agricultural Research, Education and Extension Organization.

چکیده [English]

Improve soil quality for sustainable agricultural development to ensure food security for a growing population are the subject undeniable. Soil organic carbon is a decisive factor in the soil (chemical, physical and biological properties and improving the quality and quantity of yield. Studies show that soil organic carbon in the northern Khuzestan declined due to inappropriate management practices, so that based on the latest results available ,the soil carbon content in 100% of soils is less than one percent; while the national average is 60 percent. Farmers' awareness of the role of soil organic carbon in their lands enables them to make the right decisions to adopt appropriate management practices to increase soil fertility, which require the use of soil and product management such as integrated soil fertility and plant nutrition management in a comprehensive and continuous approach. It is noted that organic carbon can be called by applying a coefficient (1.724) organic matter.

کلیدواژه‌ها [English]

  • land use
  • Organic carbon
  • Soil management
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