Sweetpotato ( Ipomoea batatas ) production in the northern United States is limited due to perceived barriers of a short growing season and relatively cool summer temperatures, yet recent studies have shown yield regions can be greater than national average when sweetpotatoes are grown with plastic mulch. A study was conducted northwest Washington evaluate productivity ‘Covington’ sweetpotato p...

A two year field experiment was carried out to evaluate the effects of three row and eight row seeding on the total phenolic compound (TPC), total flavonoid content (TFC), hydrolyzed (HTC) and condensed tannin (CTC), antioxidant activity (ABTS assay), protein content and soluble dietary fiber (SDF) and insoluble dietary fiber (IDF) in the extracts of lentil (Lens culinaris L.) and grass pea (La...

a paper-pot transplanter was designed, developed and evaluated in the field by transplanting sugar beet seedlings grown in paper pots. a ground-driven counter wheel equipped with an infra-red sensor measures the traveled distance and sends the corresponding signals to a micro-controller. a step motor controlled by the micro-controller turns the driving shaft of the paper-pot metering mechanism ...

Maize is the most represented grain crop on world’s arable land. It mostly grown using standard sowing at an inter-row distance of 70 cm. However, growing in two rows (double-row sowing) increasingly common today. The aim this research was to determine influence different spatial distributions same population maize plants yield grains a larger range FAO hybrid maturing group. experiment lasted ...

A spacing experiment using a Scotch plaid systematic design was established to investigate a wide range of square and rectangular spacings on the growth and branching habit of Eucalyptus nitens (Deane et Maiden). The Scotch plaid covered stockings ranging from 278 to 2500 stems per hectare (SPH). Spacings used ranged from a rectangularity of 1, for square spacing, to 3, with a spacing of 6 m 2 ...

Published in Agron. J. 104:1747–1756 (2012) doi:10.2134/agronj2012.0231 Copyright © 2012 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 mechanical, including photocopying, recording, or any information storage and retrieval system, without perm...