Effects Of Planting Patterns On Biomass
Accumulation And Yield Of Summer Maize
Author(s)
L. Quanqi, C. Yuhai, L. Mengyu, Y. Songlie, Z. Xunbo
& D. Baodi
Abstract
Biomass accumulation by crops depends on both light interception by leaves and
on the efficiency with which the intercepted light is used to produce dry matter.
Our aim was to identify which of these processes were affected for summer
maize field crops grown under different planting patterns. In this paper, the
effects of different planting patterns on the radiation-use efficiency (RUE) was
investigated. The experimental work was carried out in 2005 in the field located
in Shandong province, north China. Three planting patterns have been applied in
2005: flat planting, bed planting and furrow planting. Above-ground biomass
accumulation and grain yield of bed and furrow planting patterns were higher
than that of flat planting patterns. The lower biomass production and yield in flat
planting patterns was accounted for by the reduced amount of photosyntheticlly
active radiation (PAR) absorbed by the canopy, which was itself the
consequence of the reduced leaf area index. These results obtained in field crop
conditions strengthen the idea that planting patterns greatly affect radiation-use
efficiency, biomass accumulation and yield of summer maize in north China.
Keywords: planting pattern, radiation-use efficiency, yield, summer maize.
1 Introduction
In field crop studies, the approach developed by Monteith [1] makes it possible
to analyse biomass production as the consequence of two major processes: (i) the
Keywords
planting pattern, radiation-use efficiency, yield, summer maize.
Related Book
Other papers in this volume
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