نتایج جستجو برای: lysimeter
تعداد نتایج: 519 فیلتر نتایج به سال:
This study aimed to demonstrate the impact of phosphorus (P) mineral fertilization on topsoil P content and P leaching. We evaluated 83 datasets from 25 years from lysimeter experiments involving different cropping systems (winter crop, summer crop and autumn tillage, harvested grass) or unfertilized fallow, four types of soil texture, and three levels of applied mineral P fertilizer. A positiv...
In order to observe the relationships between temporal variations of CO2 surface fluxes and soil gas transport in profile before during rainfall events, two experiments were conducted a controlled natural environment at different time periods. These consisted injecting pure lysimeter 160 cm depth simulating heavy event its for 2 weeks. During whole experiments, concentrations continuously monit...
A research was conducted in Fars province Agricultural Research Center in Zarghan area from 1999 to 2002 to determine the water requirement and crop coefficient of wheat, applying lysimeter. The results indicated that the water requirements of wheat were 720, 712 and 674 mm in the years of 1999-2000, 2000-2001 and 2001-2002, respectively. Using Penman-Monteith method for estimating reference ...
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