In order to assist in high-yield agricultural management multiple cropping systems, it is essential understand the link between rainy season onset and crops sowing dates, since considerably affects management, yield output. We built crop calendars derived from remote sensing products investigated dates of irrigated rainfed agriculture Western Bahia, a new important frontier Brazilian Cerrado. C...

Published in Agron. J. 103:247–252 (2011) Published online 9 Dec 2010 doi:10.2134/agronj2010.0147s 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 mechanical, including photocopying, recording, or any information storage and ret...

Introduction One of the tragic consequences of rice policies in The Gambia over the past twenty years is how severely they undermined the domestic rice sector. Between 1966-1984, international development assistance had promoted irrigation projects on the country's abundant alluvial swamps. The objective was to create surpluses for national demand by growing the second crop by irrigation. Doubl...

A layer of harvest residues from the previous crop can reduce wasteful evaporation from the soil surface and thereby increase the efficiency of use of limited water resources for agricultural production. The practice of harvesting sugarcane green and leaving crop residues in the field, as opposed to burning the residue, has been re-adopted in many sugarcane industries worldwide. However, a bett...

Mapping smallholder irrigated agriculture in sub-Saharan Africa using remote sensing techniques is challenging due to its small and scattered areas heterogenous cropping practices. A study was conducted examine the impact of sample size composition on accuracy classifying Mozambique’s Manica Gaza provinces three algorithms: random forest (RF), support vector machine (SVM), artificial neural net...