نتایج جستجو برای: plots chemical control levels including hand weedingcontrol

تعداد نتایج: 3311645  

2017
Diane L. Larson Wesley E. Newton Patrick J. Anderson Steven J. Stein

The objectives of this study were to determine the effects of fire retardant chemical (Phos-Chek G75-F*) and fire suppressant foam (Silv-Ex) application, alone and in combination with fire, on Great Basin shrub steppe vegetation. We measured growth, resprouting, flowering, and incidence of galling insects on Chrysothamnus viscidiflorus and Artemisia tridentata. These characteristics were not af...

Journal: :علوم گیاهان زراعی ایران 0
فائزه دریایی دانشجوی دکتری دانشگاه تربیت مدرس امیر قلاوند دانشیار دانشگاه تربیت مدرس محمدرضا چائی چی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران علی سروش زاده استادیار دانشگاه تربیت مدرس

to study the effects of different fertilizing systems using green manure and zeoponix on grain yield and its components in sunflower, an experiment was conducted at the research farm of collage of agriculture, tarbiat modares university in 2010 and 2011. the experimental treatments were arranged as split plot design on the base of a complete randomized block design with three replications. two ...

Journal: :Clinical chemistry 1965
L A LOTITO D K MCKAY D SELIGSON

Instrumentation is described for the computation of stained paper electrophoresis patterns of serum proteins. The unit not only plots the dyed protein fractions, but with its electronic units, stores the individual integration voltages, scales the voltages to a percentage of the total, and plots the data on a bar graph. By including the total protein value obtained by chemical analysis, a secon...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده علوم انسانی 1390

increasing academic and professional language demands around the world are not a deniable fact. the purpose of this study was to investigate english language needs and communication needs of the chemistry students at master and ph.d. levels at the iranian universities. in this research, different methods were used including un-structured interview, structured interview, and two sets of question...

Journal: :حفاظت گیاهان 0
فاطمه صمدی حمیدرضا محمددوست چمن آباد

given the importance of sustainable agricultural development, using non-chemical weed management such as cover crops and decreasing row spacing has an importance in weed control and reducing herbicide use. in order to an experiment was conducted at agricultural research site in agricultural college, university of mohaghegh ardabili in 2011. the experiment done as factorial based on randomized c...

2015
Victor Rueda-Ayala Gerassimos Peteinatos Roland Gerhards Dionisio Andújar

Non-chemical weed control methods need to be directed towards a site-specific weeding approach, in order to be able to compete the conventional herbicide equivalents. A system for online weed control was developed. It automatically adjusts the tine angle of a harrow and creates different levels of intensity: from gentle to aggressive. Two experimental plots in a maize field were harrowed with t...

Journal: :CORD. Coconut research & development 2022

This study was conducted for six years to assess the effects of two widely grown cover crops Gliricidia sepium (T1) and Puereria phasioloides (T2) on coconut yields soil characteristics. Experiments were carried out coconuts planted in Reddish Brown Latosolic soils located low country intermediate zone-IL1 Sri Lanka. Results showed that treatments 1 2 significantly (p?0.05) effective over contr...

احمدوند, گودرز , قمری, حسین,

In order to evaluate the effect of different periods of weed interference and weed control on plant height, seed yield and yield components of common bean, an experiment was conducted at the Agricultural and Natural Resources Research Center of Hamadan, Iran, in 2011. The experiment was a randomized complete blocks design with 3 replications. Treatments included two groups of weed interference ...

Journal: :University of Thi-Qar journal of agricultural research 2021

The experiment was carried out at the Agricultural Research Station of College Agriculture and Marshlands / University Thi-Qar, located in Al- Mustufawia for agricultural season (2019-2020). study effect cultivar organic mineral fertilization on qualitative quantitative characteristics cucumber crops grown greenhouses, applied according to factorial experiments inside split plots, using complet...

2016
Douglas A. Landis Nurali Saidov Anvar Jaliov Mustapha El Bouhssini Megan Kennelly Christie Bahlai Joy N. Landis Karim Maredia

Wheat is an important food security crop in central Asia but frequently suffers severe damage and yield losses from insect pests, pathogens, and weeds. With funding from the United States Agency for International Development, a team of scientists from three U.S. land-grant universities in collaboration with the International Center for Agricultural Research in Dry Areas and local institutions i...

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