Published in Agron. J. 103:123–128 (2011) Published online 22 Nov 2010 Available freely online through the author-supported open access option. doi:10.2134/agronj2010.0316 Copyright © 2011 by the American Society of Agronomy, 5585 Guilford Road, Madison, WI 53711. All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanic...

in order to study of hydropriming, planting depth and nitrogen split application effect on yield and yield components of double cross hybrid of corn, an experiment was carried out as factorial based on randomized complete block design (rcbd) with four replications. nitrogen split application included (400 kg/ha at sowing date, 100 kg/ha at sowing date and 300 kg/ha 25 to 50 days after sowing da...

introduction cultivation of medicinal plants in agricultural ecosystems plays an important role in the diversification and sustainability of these systems (rezaei-chiyaneh & dabbagh mohammadi nassab, 2014). therefore, the application of ecological principles such as multi-ship system seems essential in the production of these plants. zarifpour et al. (2014) in intercropping arrangements of cumi...

1. The formation of the feather pattern has been studied in skin explants obtained from the lumbar region of the spinal pteryla of 6\to 7^-day chick embryos. Explants were cultured in vivo on the chorioallantoic membrane (CAM) or in vitro, either on semi-solid natural media (containing whole chick embryo extract (J£) or chick brain extract (EC)), or in a liquid synthetic medium (199). 2. Feathe...

in this study an innovatively designed tractor-mounted, ground-wheel driven, triple unit, row crop precision planter capable of planting three rows of garlic (allium sativum l.) cloves on each raised bed was designed, fabricated and tested. the major components of this planter include; chassis and transport wheels, lister-bedder unit, seed hopper, seed metering drum, sweeper, knocker, seed tube...

the current study was carried out to examine sugar beet growth pattern in climatic conditions of hamedan, iran and to recognize the factors affecting its quantity and quality as well as the physiological indices. two sowing date experiments were conducted on the basis of a randomized complete block design with four replications and 11 harvests. the plots were destructively sampled and the growt...

An autonomous vehicle has been developed for precision application of treatment on outdoor crops. This document details a new vision algorithm to aid navigation and crop/weed discrimination being developed for this machine. The algorithm tracks a model of the crop planting pattern through an image sequence using an extended Kalman lter. A parallel update scheme is used to provide not only navig...

Objective: An experiment was conducted at Wondo Genet Agricultural Research Center in the production season of 2013/14 and 2014/15 with the objective of identifying the best combination of intra and inter-row spacing for optimum plant population density of stevia. Methods: The experiment was conducted using five intra-row spacing (20cm, 25cm, 30cm, 35cm, and 40...