نتایج جستجو برای: weeds dry matter

تعداد نتایج: 299324  

Journal: :journal of agricultural science and technology 2010
n. majnoun hosseini r. h. ellis b. yazdi-samadi

a field study was conducted to evaluate the agronomic response of eight isolines of cv. clark on a clay loam soil (at karaj-iran, 35048´) to four plant population densities of 11.3, 18.5, 68.5, and 103.4 plants per square metre. significant yield increase was obtained as a result of higher plant density. differences among the cv. clark isolines were significant (p

In order to evaluate the effect of different planting seedbeds (stale and false) and application of Oxyfluorfen herbicide on yield, yield components and control of garlic weeds, a split-plot experiment was conducted based on a randomized complete block design (RCBD) with three replications in the cropping year 2020-2021 at Agricultural Sciences and Natural Resources University of Khuzestan. The...

Journal: :علوم گیاهان زراعی ایران 0
جعفر نباتی دانشجوی سابق دکتری دانشکده کشاورزی دانشگاه فردوسی مشهد محمد کافی دانشیار دانشکده کشاورزی دانشگاه فردوسی مشهد احمد نظامی استادیار دانشکده کشاورزی دانشگاه فردوسی مشهد پرویز رضوانی مقدم استادیار دانشکده کشاورزی دانشگاه فردوسی مشهد علی معصومی استادیار دانشگاه پیام نور خراسان رضوی محمد زارع مهرجردی دانشجوی دکتری بیوتکنولوژی دانشکده کشاورزی دانشگاه فردوسی مشهد

kochia is a halophyte plant and is a good source of forage for livestock under saline irrigation. in order to investigate the salinity effect on morphological and forage characteristics of kochia, an experiment was conducted. three saline waters (5.2, 10.5 and 23.1 ds m-1) and three kochia ecotypes (birjand, borujerd and sabzevar) were allocated as main and sub plots, respectively, in a split p...

Journal: :Environmental and experimental botany 2000
Gavazzi Seiler Aust Zedaker

Loblolly pine (Pinus taeda L.) seedlings were grown in competition with native weeds using soil and seed bank collected from recently chopped and burned areas near Appomattox, Virginia. One-year-old seedlings were planted and weeds allowed to germinate from the native seed bank while being exposed to CO(2) (ambient and elevated - approximately 700 ppm) and water (water stressed and well watered...

بحرانی, محمدجعفر, فاضلی , علی‌اصغر, نادری, روح‌اله, یزدانی, عباس,

In order to evaluate the effects of planting methods and seeding rates on growth characteristics and yield of alfalfa (Medicago sativa L.), Hamedani cultivar, a field experiment was conducted in 2008 at College of Agriculture, Shiraz University, Iran. The experimental design was a completely randomized block with four replicates in a factorial arrangement of the treatments. The factors consiste...

Journal: :مجله پژوهش های اکوفیزیولوژی گیاهان زراعی 0

aminul islam1*, jatish chandrabiswas 1, a. j. m. sirajul karim2, mst. salmapervin3, and md. abu saleque4 1*-soil science division, bangladesh rice research institute, gazipur-1701, bangladesh 2-department of soil science, bangabandhu sheikh mujibur rahman agricultural university, salna, gazipur-1706, bangladesh 3-plant physiology division, bangladesh rice research institute, gazipur-1701, bangl...

Journal: :پژوهش های حبوبات ایران 0
ماندا صفوی سعید ملک زاده شفارودی علی گنجعلی عبدالرضا باقری

drought is the main constraint limiting chickpea productivity which makes a considerable difference between the potential and actual yield. in order to evaluate the effect of drought stress on different morpho-physiological characteristics of chickpea, four distinct genotypes were studied in three sampling times (pre-stress, stress and recovery) with three replications. as the results implicate...

Journal: :iranian journal of veterinary research 2012
k. sadeghi m. khorvash g. r. ghorbani m. a. forouzmand m. boroumand

this study was conducted to evaluate the effects of inoculation of homo-fermentative lactic acid bacteria(lab) on ensiling characteristics and nutritive value of low dry matter corn silage (ldmcs). corn foragewas harvested at milk stage (22.8 ± 0.9% dm), chopped at theoretical length of cut (tlc) 2.5 cm, and stored in eighteen 3.8 l mini silos for each treatment. the following treatments were u...

2012
Khagendra Raj Baral

Despite weeds are a serious threat to promotion of organic farming, relatively less attention is given to research on weed management. This article explores a scope of integration of conservation agriculture for weed control and soil protection under organic farming. Limitation in the use of agro-chemicals under OF promotes intensive tillage for weed control. Mostly, tillage leads to depletion ...

Journal: :International journal of agriculture, environment and food sciences 2022

Weeds are problematic and burdensome to many smallholder farmers in Zimbabwe. The continued existence of allelochemicals plants inhibit weed seed germination, plant growth nutrient uptake. A study was carried out assess the effects sorghum species on germination dry matter accumulation different soil types at Duncanstan Farm Featherstone, 3x3 factorial experiment laid a completely randomized de...

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