نتایج جستجو برای: dssat
تعداد نتایج: 230 فیلتر نتایج به سال:
مدلهای شبیهسازی رشد و نمو گیاهی یکی از پیشرفتهترین ابزارهایی است که امروزه بهمنظور تخمین عملکرد و بهینه کردن عملیات زراعی استفاده میشوند. این پژوهش بهمنظور ارزیابی کارآیی مدل DSSAT در شرایط کشت پاییزة سیبزمینی در منطقة جیرفت در سالهای 1391-1393 بهصورت دوساله اجرا شد. آزمایش مزرعه بهصورت کرتهای خردشده در قالب طرح بلوکهای کامل تصادفی در سه تکرار انجام شد. فاکتور اصلی تاریخکاشت (26 ش...
Farmers in developing countries sometimes receive incorrect and misleading information regarding the fertilizer inputs into food production, especially during crises or times of unusually high demand. In the early 2000’s farmers of Thailand were sold fake fertilizer or advised to apply excessive amounts of fertilizers by fertilizer dealers. The problem was so pervasive that a protocol was devel...
Cotton is one of the major crops cultivated in the Texas Rolling Plains region, and it is a major contributor to the regional economy. Cotton cultivation in this region is facing severe challenges due to an increase in the frequency of droughts and a projected decrease in rainfall in the future. Development and evaluation of deficit irrigation strategies for this region could potentially conser...
Groundwater is one of the most vital of all common pool resources throughout the world. More than half of groundwater is used to grow crops. This research models groundwater depletion patterns within a multiagent system framework. Irrigators are modeled as agents in the multi-agent system. The irrigation strategies adopted by the agents are investigated using game theory, under several futurist...
Background Understanding the abundance of adverse environmental conditions e.g. frost, drought, and heat during critical crop growth stages, which are assumed to be altered by climate change, is crucial for an accurate risk assessment for cropping systems. While a lengthening of the vegetation period may be beneficial, higher frequencies of heat or frost events and drought spells are generally ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید