HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Botha, A. H. Articles by Wilkins, D. E. Search for Related Content PubMed Articles by Botha, A. H. Articles by Wilkins, D. E. Agricola Articles by Botha, A. H. Articles by Wilkins, D. E.

Small-Grain Precision Planter for Dryland Experimental Plots

Agric. Res. Council, Small Grain Ctr., Grain Crops Institute, Private Bag X29, Bethlehem 9700, South Africa;

D. E. Wilkins^*

USDA-ARS, Columbia Plateau Conservation Research Center, P.O. Box 370, Pendleton, OR 97801.

^* Corresponding author.

Small-grain stand establishment in research plots of the summer rainfall region of South Africa is a problem because of dry surface soil. A vacuum system plot planter was developed to meet these requirements. The planter has simple adjustments for changes in species, cultivars, seeding rate, row spacing, and fertilizer rate. The precision planter has fertilizer tines and modified planter units. Uniform stands are achieved with most species at seeding rates varying from 5 to 100 kg ha^–1 (4.5–89.0 lb acre^–11), with no restriction in plot length. The unit is easily transported and can plant in excess of 80 5-m (16.5 ft) plots h^–11.

Received for publication February 1, 1993.