RELATIONSHIP OF THE HEIGHT RICE IS CUT TO HARVESTING TEST PARAMETERS

Citation
Tj. Siebenmorgen et al., RELATIONSHIP OF THE HEIGHT RICE IS CUT TO HARVESTING TEST PARAMETERS, Transactions of the ASAE, 37(1), 1994, pp. 67-69
Citations number
8
Categorie Soggetti
Engineering,Agriculture,"Agriculture Soil Science
Journal title
ISSN journal
00012351
Volume
37
Issue
1
Year of publication
1994
Pages
67 - 69
Database
ISI
SICI code
0001-2351(1994)37:1<67:ROTHRI>2.0.ZU;2-L
Abstract
Data were collected from four long-grain rice varieties to develop a r elationship between the height at which rice is when combined and the amount of material other than grain (MOG) above the cut. A quadratic e quation described the relationship between the MOG ratio (MOG above th e cut divided by the total MOG) and the height ratio (height of cut di vided by the plant height) with an R2 value of 99.6% and a mean square error of 0.0004. Using this equation, a procedure is described to est imate the feedrate through a combine for given header widths, combine ground speeds, and crop conditions. The crop conditions that must be i nput are the grain yield, which can be estimated prior to harvest, and the harvest index, which is a physiological parameter that relates gr ain yield to biological yield and which has been reported for many ric e varieties.