Haili Long
Oasis Ecology Agriculture of Xinjiang Construction Crops/The Center of Crop High-Yield Research, Shihezi, 832003, People`s Republic of China
Ruizhi Xie
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture, Beijing, 100081, China
Shaokun Li
Oasis Ecology Agriculture of Xinjiang Construction Crops/The Center of Crop High-Yield Research, Shihezi, 832003, People`s Republic of China
Daling Ma
Oasis Ecology Agriculture of Xinjiang Construction Crops/The Center of Crop High-Yield Research, Shihezi, 832003, People`s Republic of China
Yuee Liu
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture, Beijing, 100081, China
ABSTRACT
Light plays a key role in net primary productivity. To take full advantage of light interception and Radiation Use Efficiency (RUE) in maize, Reasonable planting densities should be suggested for different varieties to achieve optimal growth conditions in North-Eastern China. This study was performed in 2009, 2010 and 2011 at one of the CAAS North-East Research Stations. The experiment was conducted using a split-plot design based on a randomised complete block design with three replicates; treatments included planting densities of 37, 500, 52, 500, 67, 500 and 82, 500 plants per hectare (pl ha-1) and 10 varieties were used as sub-treatments. We examined RUE values in different types (spreading leaf, intermediate type, upright leaf) and varieties and identified reasonable densities for different types in relation to the light distribution in North-Eastern China to achieve the highest RUE. All treatments showed significant effects of interception, RUE and density. Ideal planting density differed among types in combination with local light resources. In conclusion, the best densities for spreading-leaf, intermediate and upright-leaf types were 33, 381-41, 736 pl ha-1, 44, 629-56, 584 pl ha-1 and 62, 573-82, 969 pl ha-1, respectively, in North-Eastern China. Maximum grain yield should be realised when maize is grown at the optimum plant density for dry matter yield.
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How to cite this article
Haili Long, Ruizhi Xie, Shaokun Li, Daling Ma and Yuee Liu, 2013. Planting Density of Spring Maize under Optimal Growth Conditions in North-eastern
China. Information Technology Journal, 12: 5559-5564.
DOI: 10.3923/itj.2013.5559.5564
URL: https://scialert.net/abstract/?doi=itj.2013.5559.5564
DOI: 10.3923/itj.2013.5559.5564
URL: https://scialert.net/abstract/?doi=itj.2013.5559.5564
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CrossRefDirect Link - Tohidi, M., A. Nadery, S.A. Siadat and S. Lak, 2012. Variable productivity of light interception in grain maize hybrids at various amount of nitrogen. World Applied Sci. J., 16: 86-93.
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