نتایج جستجو برای: after harvesting the barley crop

تعداد نتایج: 16309117  

Journal: :تولیدات دامی 0
حسن فضائلی دانشیار، مؤسسه تحقیقات علوم دامی کشور، کرج اسماعیل اسماعیلی راد کارشناس پژوهش، مؤسسه تحقیقات علوم دامی کشور، کرج محمد بابایی مربی پژوهشی، مؤسسه تحقیقات علوم دامی کشور، کرج

this experiment was conducted to improve the nutritive value of barley stubble for two consecutive years. after harvesting crop, at first year, a completely randomized design, with a 3 × 3 factorial experiment was conducted in which 27 plots were divided into nine treatments. the treatments including zero, 2.5 and five percent urea each with zero, three and six percent molasses were mixed with ...

Adel Modhej, Mani Mojadam Reza Mamaghani

In order to study the source limitation and contribution of pre-anthesis assimilates to grain in dual-purpose (forage and grain) barley, a field experiment was carried out in Iran, Ahvaz region. The experimental design was split plot in randomized complete block with three replications. Application rates of nitrogen at four levels (60, 120, 180 and 220 kg.ha-1 N) were as main plots, while sub p...

Journal: :تولید گیاهان زراعی 0

crop residue is a non-chemical method of weed control in agricultural sustainable systems. this research was conducted at the alarogh site of ardabilto evaluate the effect of integrated use of mulch and herbicide on weed emergence and growth in potato in 2007. treatments were four levels herbicide including: (1) paraquat [n,n'-dimethyl-4,4'-bipyridinium dichloride] herbicide as pre-pl...

Journal: :journal of crop nutrition science 0
adel modhej department of agronomy and plant breeding, shoshtar branch, islamic azad university, shoshtar, iran. mani mojadam department of agronomy, ahvaz branch, islamic azad university, ahvaz, iran. reza mamaghani department of plant breeding, ahvaz branch, islamic azad university, ahvaz, iran.

in order to study the source limitation and contribution of pre-anthesis assimilates to grain in dual-purpose (forage and grain) barley, a field experiment was carried out in iran, ahvaz region. the experimental design was split plot in randomized complete block with three replications. application rates of nitrogen at four levels (60, 120, 180 and 220 kg.ha-1 n) were as main plots, while sub p...

Journal: :مهندسی بیوسیستم ایران 0
علی فرمنش دانشجوی کارشناسی ارشد، دانشگاه شهید باهنر محسن شمسی دانشیار، دانشگاه شهید باهنر کرمان سیدمحمدعلی محمدی استادیار، دانشگاه شهید باهنر کرمان

crop density measurement is one of the most important factors in precision farming and effect onthe performance of harvesting machines such as combine and mower. so, the purposes of this studyare to design, build and calibrate of an inexpensive and non-contact instrument that can estimatecrop density for crops such as wheat, barley and alfalfa stems. the sensing unit is consisted of lasertransm...

Journal: :بوم شناسی کشاورزی 0

introduction intercropping, the agricultural practice of cultivating two or more crops in the same space at the same time, is an old and commonly used cropping practice which aims to match efficiently crop demands to the available growth resources (agegnehu et al., 2006; dhima et al., 2007). intercropping of chickpea with linseed reduced the chickpea yield by 60.3%, although linseed occupied on...

Journal: :علوم گیاهان زراعی ایران 0
محمدعلی ابوطالبیان استادیار دانشکده کشاورزی دانشگاه بوعلی سینا، همدان داریوش مظاهری استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران

the recent decades emphasis on reducing pesticide use especially herbicide has led to increased interest in alternative weed control methods. the purpose of this study was to evaluate the hilling time and simultaneous interseeding of two cover crops as living mulch to control weeds in potato and to determine the impact of these actions on potato yield. a randomized complete block design as spli...

امام, یحیی, شهراسبی, صادق , عدالت, محسن , کاظمینی , سید عبدالرضا,

Cultivation of winter cover crops such as wheat and barley is one of the practical approaches for weeds control in cereal-based rotations. In order to investigate the effect of cover crop species and nitrogen rates on weed control of rapeseed (Brassica napus L.), a field experiment was arranged in split-plot based on a RCBD with three replications during 2013-2014 growing season at Research Fie...

2014
Anna Piotrowska-Długosz Edward Wilczewski

The effect of the time of catch crop (field pea) incorporation [catch crop incorporated in the autumn (A) or in the spring (B) versus plots without a catch crop (C)] on the soil enzymes related to N transformation (urease - UR, protease - PRO, nitrate reductase - NR, arginine ammonification rate - AAR), the total N and mineral N as well as microbial biomass N (MBN) contents were investigated in...

1- INTRODUCTION Nowadays, environmental aspects of soil erosion are specifically considered by researchers. In this regard, secondary (aggregate) particle size distribution (SPSD) is so important in different issues such as nutrient loss, pollutant transport and carbon cycle. Aggregate size distribution is known as the representative of soil structure, which is by itself regarded as a dynami...

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