نتایج جستجو برای: n4 45 kg nitrogenha in planting time
تعداد نتایج: 17208825 فیلتر نتایج به سال:
LAL, S., S. C. SAXENA, and R. N. UPADHYAY. 1980. Control of brown stripe downy mildew of maize by metalaxyl. Plant Disease 64:874-876. Seed treatment with metalaxyl at 4 g/ kg controlled brown stripe downy mildew (Sclerophthora rayssiae var. zeae) of maize up to 30 days after planting. When combined with seed treatment, one foliar application of metalaxyl (225 ppm) on the 30th day after plantin...
The efficacy of foliar applications of oxamyl were evaluated for the management of Rotylenchulus reniformis on cotton in Mississippi. Two tests were established in Tallahatchie County on a fine sandy loam soil (56.8% sand, 37.8% silt, 5.3% clay, pH 5.4, and 0.3% OM) naturally infested with R. reniformis. Oxamyl was applied as a foliar spray at 0.14, 0.27, or 0.53 kg a.i./ha to cotton plants tha...
to determine the effects of steckling weight and planting density on seed quantitative and qualitative characteristics of monogerm sugar beet c.v. 9597, this experiment was carried out in ardabil agricultural research station in two years (1998-99). in this study, steckling weight with three different sizes(including 4.5 mm seed portion, velocity and unifomity of germination and decreasing of g...
In order to study the physiological and morphological characteristics of canola cultivars at different planting dates, an experiment was carried out in 2008-2009 at the Agriculture Research Station of Yasouj. A factorial with Randomized Complete Block Design with four replications was conducted. Four planting dates (September 12, September 22, October 2 and October 12) and four cultivars (Zarfa...
In order to study the effects of planting pattern and plant density on yield of soybean genotypes, an experiment was carried out in Safiabad Agricultural Research Center, Dezful, Iran in 2011. The experimental design was a factorial strip plot based on completely randomized block design with 3 replications. Planting pattern consisted of 3 levels (60 cm with 1 planted row, 75 cm and 90 cm with 2...
This study investigated the effects of different levels of manganese and zinc sulfate on the quantitative and qualitative characteristics of three irrigated wheat (Triticum aestivum L.) varieties in the Abstan region of Zagheh section of Khorramabad city in 2008-2009. The experiment was performed factorially on the basis of a randomized complete block design with three replications. Treatment...
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
این تحقیق به منظور مطالعه اثر تقسیط کود نیتروژن بر شاخص های رشد و عملکرد سه هیبرید ذرت دانه ای در شاهرود اجرا شده است. آزمایش به صورت کرت های خرد شده در قالب طرح بلوک های کامل تصادفی در چهار تکرار در سال زراعی 1386 به اجرا در آمده است. کرت های اصلی شامل سه هیبرید ذرت (دبل کراس370، سینگل کراس447 و سینگل کراس499) و کرت های فرعی شامل شش تیمار تقسیط کود نیتروژن (تیمار کودی اول (n1): 45 در شروع کاشت...
effects of different planting on phenology, grain yield and its components of two sunflower culitvars were investigated. in 1996, an experiment was conducted in the experimental field of azad islamic university of khorasgan, located in khatonabad village, isfahan. the experiment was arranged in a randomized complete block design with a split plot layaout and four replications. the main plots co...
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