Nitrogen doses in topdressing affect vegetation indices and corn yield
نویسندگان
چکیده
منابع مشابه
the effect of nitrogen fertilization management on grain yield and nitrogen efficiency indices in corn
among crop plants, corn (zea mays l.) need a great amount of nitrogen during its growth period. an increase in the efficiency of nitrogen application not only decrease environmental pollutions, but also it,s economical. this study was conducted to determine the effect of nitrogen fertilization management on the yield and nitrogen efficiency in corn during 2006-2009 at safi-abad dezful agricultu...
متن کاملWater and Nitrogen Effects on Active Canopy Sensor Vegetation Indices
Published in Agron. J. 103:1815–1826 (2011) Posted online 28 Sept 2011 doi:10.2134/agronj2011.0199 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...
متن کاملSpectral Vegetation Indices and Their Relationships With Nitrogen Stress Levels
This thesis describes the development of statistical models to determine the relationships between vegetation indices and bush bean plant nitrogen stress levels thereby help early detection of bush bean nutritional stress. Two approaches, statistical analysis by SAS procedure and genetic algorithm (GA) were employed. Polynomial regression was used to fit data under all possible two-bands combin...
متن کاملEffect of Tillage and Nitrogen Rate on Corn Yield and Nitrogen and Phosphorus Uptake in a Corn-Soybean Rotation
Understanding tillage, N, and P interactions can contribute to improved N and P utilization and crop response. This study examined the interaction effects of tillage and N rate of two N sources on N and P uptake by corn (Zea mays L.). The study was conducted on Kenyon loam (fine loamy, mixed, mesic Typic Hapludolls) soil at the Iowa State University Northeast Research and Demonstration Farm nea...
متن کاملInteractions of Nitrogen, Weather, Soil, and Irrigation on Corn Yield
but no difference in yields with increased N when the season was cool. Numerous factors that affect corn yield in the Northern Great Soil moisture status is also important in maintaining Plains are not considered in current N fertilizer recommendations. A maximum corn yields, and maintaining optimal soil moislinear model to describe the interactions of N fertility, weather, soil, ture is facili...
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ژورنال
عنوان ژورنال: Bioscience Journal
سال: 2019
ISSN: 1981-3163,1516-3725
DOI: 10.14393/bj-v35n5a2019-42292