Rapeseed needs a sufficient amount of nitrogen for optimal seed yield, but the efficiency of this plant in using nitrogenous (N) fertilizers is low, which causes an increase in N consumption in the cultivation of this plant. The need to maintain a high grain yield necessitates the use of a suitable timely program and manage the consumption of N fertilizers. Thus, a field experiment was conducte...

بادرشبی با نام علمی dracocephalummoldavica، گیاهی است نهاندانه، دولپه ای، پیوسته گلبرگ، از تیره نعناع. اسانس بادرشبی در صنایع داروسازی، آرایشی و بهداشتی، غذایی و عطر سازی کاربرد های فراوان دارد. به منظور بررسی اثر تیمار های کودی مختلف بر عملکرد و اسانس گیاه بادرشبی، این تحقیق در قالب طرح بلوک کامل تصادفی با سه تکرار انجام گرفت. تیمار ها شامل 1: شاهد. 2: (t/ha 100کود دامی). 3: (t/ha 50کود دامی +...

In order to investigate the effects of moisture stress, nitrogen fertilizer, manure and integrated nitrogen and manure fertilizer on yield, yield components and water use efficiency of SC 704 corn (late maturing, non-prolific and dent). In 2005, a field study was conducted in agricultural experiment station of the college of agriculture, Tarbiat Modares University. The type of design was random...

In order to investigate the effects of moisture stress, nitrogen fertilizer, manure and integrated nitrogen and manure fertilizer on yield, yield components and water use efficiency of SC 704 corn (late maturing, non-prolific and dent). In 2005, a field study was conducted in agricultural experiment station of the college of agriculture, Tarbiat Modares University. The type of design was random...

To determine the proper nitrogen fertilizer rates and its application times for achieving high grain and oil yields of rapeseed cultivar, Hyola 401, a research was carried out in paddy fields of Rice Research Institute of Iran in Rasht during two cropping seasons. A factorial experiment was conducted in a completely randomized block design with three replications. The experimental factors w...

The effect of N levels and planting densities on quantitative and qualitative characteristics of grain yield in grain sorghum (cv. Kimia) was studied in summer 1998 at Kushkak Agricultural Research Station, Shiraz University. The experiment was a spilt plot with 4 replications in which 4 levels of planting densities (7.7, 10, 15.4, 20 seeds m-2) were applied as main plots and 4 levels of N (0, ...

This study was designed and implemented to investigate the yield and agronomic characteristics in three differently maturing corn (Zea mays L.) hybrids (SC704, SC500, and SC260) using four nitrogen (N) levels (0, 80, 160, and 240 kg N ha-1, from Urea, N= 45%). The experiments were conducted in Zabol (South-West of Iran) and Isfahan (Central Iran) in 2014 and 2015, respectively, using a split-pl...

In order to evaluate the effect of drought stress and nitrogen (N) fertilizer levels on yield, yield components and protein content of two barley cultivars (Yousef: six-rowed and Nimrouz: two-rowed), field experiments were conducted at the Fars Agricultural Research Center – Zarghan Station, during 2010-11 and 2011-12 growing seasons. The experiment was carried out as split-split plot based on ...