The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The main objective of the work described in this paper was to investigate the usefulness of a point-placement technique for investigating nitrogen-use by irrigated rice in a tropical lowland environment. The technique was used to deliver a small quantity of urea 15N to a specific location adjacent to the roots of a rice plant in a few minutes. The amount of 15N delivered was equivalent to 4–8 h of...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.