نتایج جستجو برای: apsim maize
تعداد نتایج: 36702 فیلتر نتایج به سال:
in order to evaluate the effect of nitrogen absorption and use efficiency in relay intercropping for winter wheat and maize, a field experiment was conducted during 2008-2009 at the agricultural research station of ferdowsi university of mashhad, iran. a randomized block design with three replications was used. treatments included four combinations of relay intercropping of wheat and maize (thr...
The global optimization of parameters in process-based crop models is often considered computationally expensive. Gaussian process (GP) emulation a widely used method for reducing the computational burden process. Total above-ground biomass and cane dry weight three Thai sugarcane cultivars (KK3, LK92-11 02-2-058) collected under rainfed irrigated conditions were to optimize cultivar-specific A...
Timely information on the onset of rain is essential for effectively adapting to climate variability and increasing resilience rain-fed systems. However, defining optimal sowing dates based has been challenging. We compared analyzed West African Monsoon according Raman's, modified Sivakumar's, Yamada's, Liebmann's definitions using station data from 13 locations in Senegal 1981 2020. Subsequent...
Abstract A new model for grapevines (Vitis vinifera) is the first perennial fruit crop using Agricultural Production System sIMulator (APSIM) Next Generation framework. Modules phenology, light interception, carbohydrate allocation, yield formation and berry composition were adapted or added into APSIM to represent nature of fruit-bearing vines. The simulated grapevine phenological cycle starts...
An accurate and management sensitive simulation model for tile-drained Midwestern soils is needed to optimize the use of agricultural management practices (e.g., winter cover crops) to reduce nitrate leaching without adversely affecting corn yield. Our objectives were to enhance the Agricultural Production Systems Simulator (APSIM) for tile drainage, test the modified model for several manageme...
اثر تغییر اقلیم بر روی کشاورزی و امنیت غذائی مردم یکی از مهمترین موضوعات مطرح در سطح جهان است. استان تهران با داشتن 60125 هکتار سطح زیرکشت گندم (سال زراعی 1389-1388) و عملکرد تولید 6/3795 تن در همین سال دارای بیشترین عملکرد تولید در بین استانهای کشور بوده است. هدف از این مطالعه ارزیابی اثر تغییر اقلیم بر عملکرد تولید محصول گندم در استان تهران است. دادههای هواشناسی 58 سال (2009-1951 میلادی) ...
The goal to improve food security in sub-Saharan Africa (SSA) through domestic, resource efficient and low carbon agriculture is importance. Interventions produce more could impact the resource-base lead increase greenhouse gas (GHG) emissions from agroecosystems. Unfortunately, existing methods are limited analyzing small-scale agricultural systems, this situation an obstacle decision making w...
The response of wheat crops to elevated CO2 (eCO2 ) was measured and modelled with the Australian Grains Free-Air CO2 Enrichment experiment, located at Horsham, Australia. Treatments included CO2 by water, N and temperature. The location represents a semi-arid environment with a seasonal VPD of around 0.5 kPa. Over 3 years, the observed mean biomass at anthesis and grain yield ranged from 4200 ...
To evaluate the effect of nitrogen sources on yield and quality of sweet basil and forage maize under intercropping (additive series), a field experiment was carried out at the experimental field of faculty of agriculture, Lorestan University, Khorramabad, Iran, in 2013-2014 and 2014-2015 growing seasons. Experimental treatments were arranged as factorial in randomized complete block design wit...
شبیه‌سازی رشد، عملکرد، نیتروژن دانه و کارایی مصرف آب ارقام ذرت دانه‌ای با استفاده از مدل CERES-Maize
In this research, CERES-Maize crop model was calibrated, validated and evaluated for different maize hybrids under climatic conditions of Gonabad, east of Iran. For this purpose, an experiment was carried out based on a split-split plot randomized complete blocks design. Main factor consisted of three irrigation regimes (optimum irrigation, moderate drought stress, and severe drought stress), s...
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