نتایج جستجو برای: apsim maize
تعداد نتایج: 36702 فیلتر نتایج به سال:
The purpose of this research is the simulation of the maize function to scenario of climate change to the present and future. So to survey the region climate, daily data, maximum and minimum temperature, precipitation and radiation have been utilized during the period of (1987-2016). In order to simulating of climate in future, firstly the date of IPCM4 model under scenario and 30’s and 50’s wi...
One of the challenges to increase milk production in a large pasture-based herd with an automatic milking system (AMS) is to grow forages within a 1-km radius, as increases in walking distance increases milking interval and reduces yield. The main objective of this study was to explore sustainable forage option technologies that can supply high amount of grazeable forages for AMS herds using th...
In order to estimate the adaptability of Agricultural Production Systems Simulator (APSIM)-Maize model under special climate environment in tropic, 10 field experiments were conducted at different seasons three sites (Longchuan, Mangshi and Ruili) tropic Yunnan Province, China. The parameters APSIM calibrated its was validated. results showed that days from sowing flowering maturity predicted a...
The increased frequency of climate extremes associated with ongoing change has the potential for significant impacts on maize grain yield in maize-producing regions worldwide. In this study, we used a modeling approach to investigate effects different types climatic Northeast China. We combined annual mean air temperature and accumulated precipitation data divided years into 9 categories, using...
The use of modern crop varieties is a dominant method of obtaining high yields in crop production. Efforts to identify suitable varieties, with characteristics that would increase crop yield under future climate conditions, remain essential to developing sustainable agriculture and food security. This work aims to evaluate potential genotypic adaptations (i.e., using varieties with increased ab...
An understanding of the relative impacts of the changes in climate variables on crop yield can help develop effective adaptation strategies to cope with climate change. This study was conducted to investigate the effects of the interannual variability and trends in temperature, solar radiation and precipitation during 1961–2003 on wheat and maize yields in a double cropping system at Beijing an...
Agricultural systems models worldwide are increasingly being used to explore options and solutions for the food security, climate change adaptation and mitigation and carbon trading problem domains. APSIM (Agricultural Production Systems sIMulator) is one such model that continues to be applied and adapted to this challenging research agenda. From its inception twenty years ago, APSIM has evolv...
سابقه هدف: مدل‌های شبیه‌سازی امکان مطالعه تأثیر مدیریت کشاورزی بر فعالیت‌های تولیدی در محیط‌های معین را مهیا می‌سازد. این ابزارها که به صورت برنامه‌های کامپیوتری هستند با کمک به مدیریت کشاورزی، امکان تصمیم‌گیری‌های مربوط به استفاده از منابع و نهاده-های کشاورزی را فراهم می‌سازند. مدل APSIM-Maize می‌تواند در زمینه مدیریت گیاه استراتژیک ذرت مورد استفاده قرار گیرد اما به کارگیری هر مدلی نیازمند ارز...
We used the APSIM-Maize model to simulate maize potential yield (Yp) and rain-fed (Yw) when adaptation options of sowing date planting density were adopted under Representative Concentration Pathway (RCP) 4.5 8.5 in Guanzhong Plain China. The results showed that Yp would decrease by 10.6–14.9% 15.0–31.4% RCP4.5 RCP8.5 for summer maize, 13.9–19.7% 18.5–36.3% spring respectively. Yw 17.1–19.0% 23...
Oil palm has become one of the most important crops in the world with questions being raised about its economic and environmental sustainability. Agricultural systems models are regularly employed in studying sustainable crop management but no detailed model is currently available for oil palm systems. We developed a production systems model for oil palm within the Agricultural Production Syste...
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