ACTA AGRICULTURAE BOREALI-SINICA ›› 2019, Vol. 34 ›› Issue (S1): 36-42. doi: 10.7668/hbnxb.201751377

Special Issue: Wheat Corn

• Tillage and Cultivation·Physiology and Biochemistry • Previous Articles     Next Articles

Analysis on Potential of Increasing Production for Late Sow of Winter Wheat and Late Harvest of Summer Maize

Lü Lihua, DONG Zhiqiang, WANG Xueqing, LIU Qian, ZHANG Lihua, JIA Xiuling   

  1. Scientific Observing and Experimental Station of Crop Cultivation in North China, Ministry of Agriculture, Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050035, China
  • Received:2018-09-03 Published:2019-12-28

Abstract: The purposes of this study were to recommend optimal sowing dates of wheat cultivars and the suitable harvest date of summer maize in middle part of Hebei Province, China and make full use of the light and heat resources. A field experiment was carried out with split plot design (main plot of sowing date and subplot of cultivar) for wheat from Autumn 2011 to Summer 2014, and with uniform experiment design for maize in 2012 and 2014 in Gaocheng of Hebei Province to evaluate the response of wheat cultivars to accumulated temperature before winter and the response of maize to harvest date. For Jimai 585 and Jinhe 9123, these of cultivars were not sensitive to sowing date and indicated a wide range of preferred sowing date, with 324-560 ℃ for insensitive and 362-566 ℃ for intermediate before winter, and the yield was higher in this accumulated temperature range. According to annual average accumulated temperature in Gaocheng, the optimal sowing time in wheat production is about October 20th for insensitive and intermediate cultivars. The yield of summer maize were linear with sowing date and harvest period, but the sowing time and harvest period had different effects on yield. The accumulated temperature of 100 ℃increased yield 527.7 kg/ha in maize harvest period. The deadline date of the average temperature for effective filling temperature (16 ℃) was October 17th in the late period of maize growth, if harvest period of the corn was postponed from traditional farmers in September 22th to October 17th, and accumulated temperature could increase 476 ℃, and yield could be increased by 2 511.9 kg/ha. Therefore, it was important for obtained high yield of two season crops when delaying sowing time for wheat and harvest time for corn. Corn harvest date might be postponed to October 17th, wheat sowing date might be postponed to October 20th.

Key words: Winter wheat, Summer maize, Sowing date, Yield, Accumulated temperature

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Cite this article

Lü Lihua, DONG Zhiqiang, WANG Xueqing, LIU Qian, ZHANG Lihua, JIA Xiuling. Analysis on Potential of Increasing Production for Late Sow of Winter Wheat and Late Harvest of Summer Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(S1): 36-42. doi: 10.7668/hbnxb.201751377.

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