نتایج جستجو برای: fertilizer and irrigation water whit 37

تعداد نتایج: 16953531  

Journal: :تحقیقات آب و خاک ایران 0
یاسر اسماعیلیان مصطفی حیدری احمد قنبری

to study the effects of zabol wastewater treated with two kinds of fertilizer (manure and chemical fertilizer) application vs use of ordinary water on grain yield and yield components in corn (kosc704) a field experiment was conducted at the university of zabol, iran during 2007 growing season. the statistical plan selected was a split plot one of three replications. the treatments were compris...

علیرضا توکلی, , علیرضا سپاسخواه, , ابوالفضل عزیزیان, , منصور زیبایی, ,

Irrigation water Scarcity is the major limiting factor for crop production in irrigated farming. Therefore, optimal use of water is influenced by seasonal rainfall especially where the water price is high. Nitrogen also plays a key role in plant nutrition. In this study, wheat grain yield production as a function of applied water (irrigation plus seasonal rainfall) and nitrogen fertilizer (appl...

Since the amount of water in the arid and desert regions is limited, the existing water resources utilization methods as well as irrigation methods in these areas are different from other areas. For this purpose, an experiment was conducted as split plot in a completely randomized design with three replications in the Isfahan University of Technology. In this experiment, the amount of irrigatio...

2014
GUANGwEI HUANG

While the current food security is fulfilled in China, the substantial nitrogen fertilizer use has caused many far-reaching environmental problems. Therefore, reforming the fertilizer management is the key toward sustainable agriculture for 1.3 billion people. The present study is intended to test the applicability of a nitrogen fertilizer management approach for corn production developed in U....

ژورنال: علوم آب و خاک 2015
احمدپور دهکردی, الهه , تدین, علی, تدین, محمودرضا ,

In order to evaluate the effect of urban wastewater and different fertilizer sources on macro and micro nutrients' concentration and shoot dry weight of sugar beet, a field experiment was arranged as a split plot in RCBD design with three replications at Research Station of Shahrekord University in 2013. The main factors included irrigation with urban wastewater at 2-4 leaf stage and 8-12 leaf ...

2012
William J. Johnston

Superintendents know that management of putting greens is an art. Greens are often made of high-porosity sand that does not retain water or nutrients very effectively. Also, putting green grasses are cut extremely short, which does not allow a deep root system to develop and take up nutrients from deep in the soil profile. Therefore, putting greens require frequent irrigation and fertilizer app...

2013
M. M. AL Fakhrul Islam Md. Asaduzzaman Khan A. S. M. Fazle Bari M. T. Hosain

The experiment was conducted in the Sher-e-Bangla Agricultural University research farm, Dhaka, Bangladesh during December 2010 to April 2011 to study the effect of fertilizer and manure with different water management on the growth, yield and nutrient concentration of BRRI dhan28. The experiment consisted of 2 factors i.e. irrigation and fertilizer plus manure. There were 2 irrigation levels (...

Journal: :علوم گیاهان زراعی ایران 0
محمدرضا میرزایی مربی پژوهش مرکز تحقیقات کشاورزی و منابع طبیعی همدان علی قدمی فیروزآبادی مربی پژوهش مرکز تحقیقات کشاورزی و منابع طبیعی همدان محمد عبداللهیان نوقابی دانشیار مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند، کرج

in the present experiment, the effects of nitrogen and phosphor fertilizer application in two methods of furrow and trickle irrigation on the yield and quality of sugar beet seed cultivar 7233 were studied. the experiment was conducted as a split factorial in a completely randomized block design with three replications during 2003 and 2004 in hamedan province. main plots were allocated to irrig...

Journal: :تحقیقات آب و خاک ایران 0
فرزانه شعاری آزاد دانشجوی کارشناسی ارشد گروه آبیاری و زهکشی پردیس ابوریحان علی رحیمی خوب استاد، پردیس ابوریحان مجید قربانی جاوید استادیار پردیس ابوریحان دانشگاه تهران محمد هادی نظری فر کارشناس پژوهشی پردیس ابوریحان دانشگاه تهران

water and nitrogen fertilizer are two main factors of agricultural production and deficiency of each one makes reduction in the yield. deficit irrigation is one of the ways for water management in arid and semiarid areas, but it is effective on the need of nitrogen. excessive use of nitrogen will be a waste of capital and environmental pollution. in this study the interaction of water and nitro...

Journal: :Journal of environmental quality 2003
Shawn K White Joe E Brummer Wayne C Leininger Gary W Frasier Reagan M Waskom Troy A Bauder

Nonpoint-source pollution from agricultural activities is currently the leading cause of degradation of waterways in the United States. Applying best management practices to flood-irrigated mountain meadows may improve agricultural runoff and return flow water quality. Prior research has focused on fertilizer use for increased hay yields, while few studies have investigated the environmental im...

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