Seed zone properties and crop performance as affected by three no-till seeders for permanent raised beds in arid northwest China

He, Jin and Li, Hongwen and McHugh, Allen David and Wang, Qingjie and Li, Hui and Rasaily, Rabi Gautam and Sarker, Khokan Kumer (2012) Seed zone properties and crop performance as affected by three no-till seeders for permanent raised beds in arid northwest China. Journal of Integrative Agriculture, 11 (10). pp. 1654-1664. ISSN 2095-3119

Abstract

The no-till seeders of various soil opener configurations have been shown to produce various soil physical responses in relation to soil and climate conditions, thus affecting crop performance in permanent raised beds (PRB) systems. This is particularly important in arid Northwest China where large volumes of residue are retained on the soil surface after harvest. In Zhangye, Gansu Province, China, a field trial assessed the effects of three typical (powered-chopper, powered-cutter and powered-disc) PRB no-till seeders and one traditional seeder on soil disturbance, residue cover index, bulk density, fuel consumption, plant growth, and subsequent yield. In general, seedbed conditions and crop performance for PRB no-till seeders seeded plots were better than for traditional seeded plots. In PRB cropping system, the powered-chopper seeder decreased mean soil disturbance and increased residue cover index compared to powered-disc and -cutter seeders. However, the results indicated that soil bulk density was 2.3-4.8% higher, soil temperature was 0.2-0.6°C lower, and spring wheat emergence was 3.2-4.7% less. This was attributed to greater levels of residue cover and firmer seedbeds. Spring maize and wheat performance in the powered-cutter and -disc treatments was better (non-significant) than powered-chopper treatment. So powered disc no-till seeder, which generally provided the best planting condition and the highest yield, appeared to be the suitable seeder in heavy residue cover conditions. Considering the precision requirements for soil disturbance and residue cover, the powered strip-chopping no-till seeder could be a suitable option for PRB cropping system in Northwest China. Although these results are preliminary, they are still valuable for the design and selection of no-till seeders for PRB cropping systems in arid Northwest China.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2012 Chinese Academy of Agricultural Sciences. Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: No Faculty
Date Deposited: 31 Oct 2014 01:48
Last Modified: 06 Feb 2017 01:51
Uncontrolled Keywords: crop growth; no-till seeder; permanent raised beds; seedbed; yield
Fields of Research : 05 Environmental Sciences > 0503 Soil Sciences > 050305 Soil Physics
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070302 Agronomy
09 Engineering > 0999 Other Engineering > 099901 Agricultural Engineering
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970107 Expanding Knowledge in the Agricultural and Veterinary Sciences
Identification Number or DOI: 10.1016/S2095-3119(12)60168-3
URI: http://eprints.usq.edu.au/id/eprint/26290

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