نتایج جستجو برای: berseem clover sole cropping weed free

تعداد نتایج: 561067  

Journal: :journal of chemical health risks 0
h. aram soil science department, zanjan university, zanjan, iran a. golchin soil science department, zanjan university, zanjan, iran

the effects of arbuscular mycorrhizal fungi on nitrogen concentration of berseem clover were examined in contaminated soil with cadmium. examined factors included: levels of arbuscular mycorrhizal fungi inoculation ( glomus mosseae ) (with and without inoculation), and different levels of soil contamination by cadmium (0, 5, 10, 20, 40 and 80 mg.kg-1). the results showed that the effects of cad...

2010

Weed pressure in 1995 was incredible! What happened to produce such a glorious crop of weeds? The answer: drought! The Drought of 1995 and Weeds and Weed Control in 1996 Weed pressure in 1995 was, in a word, incredible! I toured many areas — golf courses, lawns, athletic fields, and institutional grounds — that were solid crabgrass, knotweed, clover, etc. In many of these areas, if there weren’...

ژورنال: علوم آب و خاک 2000
ارزانی, احمد ,

Knowledge of the effects of row spacings and seeding rates on dual-purpose forage and seed production of an annual legume crop is essential for its proper agronomical exploitation. In this study, the effects of various row spacings and seeding rates on dry matter and seed yield in berseem clover (Trifolium alexandrinum L.) were evaluated in two consecutive years. The experimental design was a s...

2015
A. N. Rao B. S. Chauhan

India has a wide range of agroclimates and soil types. The highly diverse agriculture and fanning systems are beset with different types of weed problems. Weeds cause 10-80% crop yield losses besides impairing product quality and causing health and environmental hazards. Invasive alien weeds are a major constraint to agriculture, forestry and aquatic environment. Crop-specific problematic weeds...

Journal: :Journal of Agricultural Sciences, Belgrade 2021

Weed interference is a major threat to rice production, leading high yield reduction and reduced profitability. Therefore, field experiments were conducted evaluate the effect of different timings weed control on growth upland in 2015 2016 cropping seasons. The treatments consisted periods when crop was allowed be weed-infested for first 3, 6 9 weeks after sowing (WAS) weeds controlled WAS. Two...

Journal: :بوم شناسی کشاورزی 0
آلاله متقیان همت اله پیردشتی وحید اکبر پور غزال سراج پور محمد یعقوبی خانقاهی سجاد شریعت نژاد

in order to study the possibility of intercropping of basil and sesame, an experiment was carried out in a randomized complete block design with three replications at the sari agricultural sciences and natural resources university during growing season of 2009-2010. treatments consisted of different planting ratio, p1: sole cropping of basil, p2: 75% basil+ 25% sesame, p3: 50% basil+ 50 % sesam...

Journal: :Phytopathology 2006
Robert P Larkin C Wayne Honeycutt

ABSTRACT Eight different 3-year cropping systems, consisting of soybean-canola, soybean-barley, sweet corn-canola, sweet corn-soybean, green bean-sweet corn, canola-sweet corn, barley-clover, and continuous potato (non-rotation control) followed by potato as the third crop in all systems, were established in replicated field plots with two rotation entry points in Presque Isle, ME, in 1998. Cro...

موحدی دهنوی‌, محسن, کیانی, ملیحه, یدوی, علیرضا ,

Unsuitable planting and weed competition are the most important factors that greatly reduce the yield of bean. In order to study the effect of planting date on yield and yield components of three white bean cultivars in weed infest and weed free condition a factorial experiment with randomized complete block design and three replications was carried out at Semirom in 2009. The treatments were p...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
محمد زمانیان مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج محمد اکبری راد محمدرضا عباسی اردلان مهرانی علی مقدم ناصر ظریفی نیا خلیل چابک

in order to select and release of alborz-1, the new cultivar of crimson clover suitable for cropping systems based on clover planting, several research projects were carried out at seed and plant improvement institute (spii) during 1997-2008. these studies were carried out using a split plot design (based on a rcbd) with 12 treatments and four replications in karaj, dezful and esfahan research ...

Journal: :پژوهش های زراعی ایران 0
یاسر علی زاده علیرضا کوچکی مهدی نصیری محلاتی فرزین پور امیر

intercropping may be helpful manner to increase interception and utilization. the aim of this study was to compare radiation use efficiency and radiation interception in intercropping with sole cropping. an experiment was conducted at the agricultural research station, ferdowsi university of mashhad in the growing season of the year 2008. the experimental treatments were: 1- sole crop of bean 2...

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