نتایج جستجو برای: fertilizer use efficiency and grain fillingrate

تعداد نتایج: 17035593  

Journal: :journal of crop nutrition science 0
alireza safahani department of agriculture, payame noor university, p.o. box: 19395-3697, tehran, iran. maryamosadat alavian petroodi department of agronomy and plant breeding, ghaemshahr branch, islamic azad university, ghaemshahr, iran. farshad ghooshchi department of agronomy, varamin branch, islamic azad university, varamin, iran.

this study setout to investigate the effect of wheat residue, tillage, and nitrogen fertilizer management on some agronomic traits of soybean as a split split plot based on randomized complete block design with three replications. the main plots included wheat residue management: collecting and leaving residue and sub plot included tillage (without tillage and conventional tillage), and the sub...

2014
Getachew Sime Jens B. Aune

This study examines the agronomic response, efficiency and profitability of fertilizer microdosing in maize. An experiment with the following treatments was conducted: control without fertilizer, microdosing treatments, with the rate of 27 + 27, 53 + 53 and 80 + 80 kg ha, and banding of fertilizer with 100 + 100 kg ha of di ammonium phosphate (DAP) + urea, applied at planting and jointing, resp...

2010
Zhonghao Zhou Guojian Zhang Xiaomei Song Shuhan Du Gangcai Liu

The spread of vegetable production around Lhasa, Tibet, China, with high nitrogen fertiliser use may cause accelerated acidification which has consequences for soil productivity. In order to understand the different patterns of soil acidity in Lhasa, Tibet, China three patterns of land use were studied namely: grain, openfield vegetable, and greenhouse vegetable. Fertilizer application was high...

2013
A. Bahrani J. Pourreza M. Hagh Joo

In order to evaluate the effects of inoculants and chemical fertilizer on quantitative and qualitative yield, a bread wheat cultivar treated with Azotobacter, arbuscular mycorrhiza fungi (AMF) and nitrogen sources by using split plot on the basis of randomized complete block design with three replications in Fars Agricultural Research Station during 2007-2008. Main plots consisted of nitrogen f...

2011
W. G.

A study was conducted at Bunda College during the 2003/04 crop season to assess the effect of fertilizer application practices on performance of maize with emphasis on improving the efficiency of using urea as a top dressing fertilizer The treatments were laid out as a split-plot in a randomized complete block design (RCBD) with maize varieties as main plots and fertilizer application practices...

Ayeh Makvandi Mojtaba Alavifazel, Shahram Lack

In order to investigate effect of application of Nitroxin and nitrogen chemical fertilizer on yield and yield components, split plot experiment on the basis of Randomized Complete Block Design with four replications was conducted. Four levels of Nitrogen fertilizer (N1: 100% chemical fertilizer, N2: 75% chemical fertilizer + 100% biological fertilizer, N3: 50% chemical fertilizer + 100% biologi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...

Journal: :journal of medicinal plants and by-products 0

experiment was conducted as split plot in a randomized complete block design with three replications in kermanshah to shed lights on economic analysis of deficit irrigation and integrated application of biological and chemical fertilizer son cultivation of medicinal plant borage (borago officinalis l). irrigation tritments include: a) 30% less water than crop requires invegetative, b) inreprodu...

Journal: :پژوهش های تولید گیاهی 0
رزیتا جشنی دانشگاه شهید چمران اسفندیار فاتح دانشگاه شهید چمران امیر آینه بند دانشگاه شهید چمران

in order to evaluate of biological fertilizers and micronutrient elements effects on yield and some agronomic traits in rapeseed (brassica napus l.), an experimental was performed as factorial arrengement based on randomized complete blocks design with three replications in 2012-13 in research station of shahid chamran university of ahvaz, iran. in this experiment, micronutrient elements were i...

Journal: :فصلنامه علمی اکوفیزیولوژی گیاهان زراعی 0
فدرا طاهری اشترینانی باشگاه پژوهشگران جوان و نخبگان، واحد بروجرد، دانشگاه آزاد اسلامی، بروجرد، ایران امین فتحی باشگاه پژوهشگران جوان و نخبگان، واحد آیت الله آملی، دانشگاه آزاد اسلامی، آمل، ایران

in order to examine the effects of biological and chemical fertilizers with the use of salicylic acid on the agronomic characteristics of corn as a factorial experiment in randomized complete block design with three replications at the agricultural research station in 2011 was boroujerd. factors examined included three levels of phosphorus fertilizer (0, 100 and 150 kg ha), two levels of biolog...

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