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Impact of Subsoiling and Sowing Time on Soil Water Content and Contribution of Nitrogen Translocation to Grain and Yield of Dryland Winter Wheat
Version 1
: Received: 18 November 2018 / Approved: 21 November 2018 / Online: 21 November 2018 (04:51:17 CET)
A peer-reviewed article of this Preprint also exists.
Liang, Y.F.; Khan, S.; Ren, A.-X.; Lin, W.; Anwar, S.; Sun, M.; Gao, Z.-Q. Subsoiling and Sowing Time Influence Soil Water Content, Nitrogen Translocation and Yield of Dryland Winter Wheat. Agronomy 2019, 9, 37. Liang, Y.F.; Khan, S.; Ren, A.-X.; Lin, W.; Anwar, S.; Sun, M.; Gao, Z.-Q. Subsoiling and Sowing Time Influence Soil Water Content, Nitrogen Translocation and Yield of Dryland Winter Wheat. Agronomy 2019, 9, 37.
Journal reference: Agronomy 2019, 9, 37
DOI: 10.3390/agronomy9010037
Abstract
Dryland winter wheat in Loess Plateau is facing yield reduction due to shortage of soil moisture and delayed sowing time. Field experiment was conducted at Loess Plateau in Shanxi Province, China from 2012 to 2014, to study the effect of subsoiling and conventional tillage and different sowing dates on the soil water storage and contribution of N accumulation and remobilization to yield of winter wheat. The results showed that subsoiling significantly improved the soil water storage at 0-300 cm depth, improved the number of tillers and pre-anthesis N translocation in various organs of wheat and post-anthesis N accumulation, eventually increased the yield up to 17-36%. Delaying sowing time had reduced the soil water storage at sowing and winter accumulated temperature by about 180˚C. The contribution of N translocation to grain yield was maximum in glume+spike followed by in leaves and minimum by stem+sheath. In addition a close relationship was found between the N accumulation and translocation and the soil moisture in the 20-300 cm. Subsoiling during the fallow period and the medium sowing date was beneficial for improving the soil water storage and increased the N translocation to grain, thereby increasing the yield of wheat, especially in dry year.
Keywords
dryland wheat; subsoiling; sowing date; nitrogen accumulation; nitrogen translocation; yield
Subject
BIOLOGY, Agricultural Sciences & Agronomy
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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