نتایج جستجو برای: row spacing

تعداد نتایج: 39639  

Journal: :Journal of AgriSearch 2023

A field trial was conducted during the Kharif season of 2020 to assess effect spatial and temporal crop geometry on phenology, yield agro meteorological indices hybrid maize at Agronomy Research Farm, FoA Wadura, Sopore, SKUAST-Kashmir. The experiment carried out in split- split plot design with dates sowing (17th SMW; D1), 19th D2 21st D3) as main treatments; varied row spacing (50 cm × 20 cm;...

2008
K. C. Stone P. J. Bauer W. J. Busscher J. A. Millen

In the southeastern U.S. Coastal Plains, supplemental irrigation is required to reduce the impact of short‐term droughts and yield‐reducing plant water stress that can occur at least biennially. Sprinkler irrigation is commonly used to water agronomic crops in the region. Microirrigation is typically used for high value fruit and vegetable crops. In recent years and at some locations, microirri...

Journal: :Weed Technology 2021

Abstract Glyphosate-resistant (GR) Palmer amaranth is one of the most difficult to control weeds in soybean production fields Nebraska and United States. An integrated approach required for effective management GR amaranth. Cultural practices such as narrow row spacing might augment herbicide efficacy The objectives this study were evaluate effect programs dicamba/glyphosate-resistant (DGR) soy...

2011
Nadir Sainz-Costa Angela Ribeiro Xavier P. Burgos-Artizzu María Guijarro Gonzalo Pajares

This paper presents a mapping method for wide row crop fields. The resulting map shows the crop rows and weeds present in the inter-row spacing. Because field videos are acquired with a camera mounted on top of an agricultural vehicle, a method for image sequence stabilization was needed and consequently designed and developed. The proposed stabilization method uses the centers of some crop row...

Journal: :چغندرقند 0
مصطفی حسین پور دانشجوی مقطع دکتری رشته زراعت دانشگاه تربیت مدرس

drip irrigation is the most efficient technique known for improving irrigation water management. a two-year study was conducted to determine the effects of drip and furrow irrigation methods on yield and quality of sugar beet in north of khuzestan. in the first year, the experimental design was a completely randomized block design with three replications. treatments were, three drip irrigation ...

2011
D. S. Shrestha B. L. Steward S. J. Birrell

Algorithms were developed to process video of maize rows and extract plant features to estimate density and spacing of early growth stage maize plants. The Otsu method was modified to compensate for varied amount of plant segmentation noise presented in different operating conditions. Three features were extracted and used to differentiate between weeds and maize plants: projected plant canopy ...

Journal: :iranian journal of natural resources research 2012
neda ghorbanzadeh ali salehi ebrahim lashkar bolooki ehsan kahneh

poplar trees are becoming extremely important as fast growing species due to the increasing need for wood and decreasing productivity of some lands in iran. the present study aimed to find the effect of canopy of poplar clones as one of the most important effective factors on soil properties compared to the distances inter-row trees. five poplar clones and species included: populus euramericana...

Journal: :علوم گیاهان زراعی ایران 0
عباس کشته گر دانشجوی کارشناسی ارشد زراعت، گروه زراعت و اصلاح نباتات، دانشگاه زابل دانشکدة کشاورزی مهدی دهمرده استادیار، اکولوژی گیاهان زراعی، گروه زراعت و اصلاح نباتات، دانشگاه زابل دانشکدة کشاورزی محمد گلوی دانشیار اکولوژی گیاهان زراعی، گروه زراعت و اصلاح نباتات، دانشگاه زابل دانشکدة کشاورزی عیسی خمری استادیار اکولوژی گیاهان زراعی، گروه زراعت و اصلاح نباتات، دانشگاه زابل دانشکدة کشاورزی

in order to evaluate the effects of intercropping of maize- peanut, weeding and their planting design on weed population dynamics, an experiment was conducted as a factorial experiment in the form of rcbd with three replications at the research farm of agriculture center of zabol university (iran) in 2012. the treatments including sowing system in four levels as first factor  (sole maize, sole ...

2011
L. E. Myers

At present a small number of full-scale marine current energy converters are undergoing sea trials to demonstrate commercial viability of the technology. In order to provide meaningful quantities of electrical power to the grid, the next phase in the development of the technology will be the installation and operation of farms or arrays composed of multiple devices. As most tidal current sites ...

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