Login | Request Account (DAF staff only)

Sowing time and tillage practice affect chickpea yield and nitrogen fixation 1. Dry matter accumulation and grain yield

Share this record

Add to FacebookAdd to LinkedinAdd to XAdd to WechatAdd to Microsoft_teamsAdd to WhatsappAdd to Any

Export this record

View Altmetrics

Horn, C.P., Birch, C.J., Dalal, R.C. and Doughton, J. A. (1996) Sowing time and tillage practice affect chickpea yield and nitrogen fixation 1. Dry matter accumulation and grain yield. Australian Journal of Experimental Agriculture, 36 (6). pp. 695-700. ISSN 0816-1089

[img]
Preview
PDF
403kB

Article Link: https://doi.org/10.1071/EA9960695

Abstract

Mean protein concentrations in wheat (Triticum aestivum) on the Darling Downs of southern Queensland have fallen below 10% in recent years, preventing farmers from obtaining 'Prime Hard' status (13.0%) for their wheat crop. Two management options, for improving this situation are applications of nitrogenous fertiliser in a wheat monoculture or inclusion of a legume in rotation with wheat. Long-term trials at Warra, on the western Darling Downs, resulted in the selection of chickpea (Cicer arietinum) as a useful grain legume cash crop with potential for improvement of its nitrogen (N) fixing ability through management. This 2-year study examined the effect of sowing time and tillage practice on dry matter yield, grain yield, N accumulation and N2 fixation in chickpea and the subsequent soil N balance. There were 3 sowing times during autumn and winter of each year using conventional tillage (CT). Zero tillage (ZT) was introduced after the first crop for all sowing times. Greater total dry matter yield and grain yield (4.18-5.95 and 1.63-2.25 t/ha, respectively) resulted from sowing in autumn or early winter than from sowing in late winter (3.39-3.86 and 0.97-1.22 kg/ha, respectively). The effects of tillage practice were variable, depending on growth stage. At harvest, ZT plots produced greater total dry matter yield (4.20 t/ha) and grain yield (1.94 t/ha) than CT plots (3.01 and 1.29 t/ha, respectively), whereas at the time of maximum dry matter, yield was higher under CT for autumn sowings, and under ZT for winter sowings.

Item Type:Article
Subjects:Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Plant culture > Food crops
Live Archive:05 Apr 2024 02:03
Last Modified:05 Apr 2024 02:03

Repository Staff Only: item control page

Downloads

Downloads per month over past year

View more statistics