ACTA AGRICULTURAE BOREALI-SINICA ›› 1990, Vol. 5 ›› Issue (1): 57-63. doi: 10.3321/j.issn:1000-7091.1990.01.011

Special Issue: Cotton Oil crops

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The Relationship Between Growing Period of Cotton and Temperature,Soil Moisture and Length. of Sunshine

Feng Liping, Liu Dezhang, Han Xuexin   

  1. Shanxi Agricultural University, Taigu
  • Received:1989-07-25 Published:1990-03-28

Abstract: Based on the data of field experiments by split-plot experimental design,the effect of key eco-climatic factors on the growth and development of rarly cotton "Jing 6" under natural field conditions and the effect way were siu-died by progressive regression method,Results showed, The main eco-climatic factors affecting the,proces of growth and development of cotton are temperature, length of sunshine and soil moisture,Themperaturc is the must important factor.The main factura are soil temperature before the third leaf, daily mean air temperature after the third leaf and length of sunshine in the boiling period, Extreme air temperature is also an important factor, The nonlinear model between the number of days of emergence (D1)and the soil mean temperature(X1)and soil moisture (X2 )is: D1=1/(0,1755-0,0122X1-0,0035X2)or D1=62, 34/( X1-12.49)The linear model of each growing period after emergence is:Di=bi+∑bjXj j=1

Key words: Cotton, The period of growth and development, Temperature, Soil moisture, Length of sunshine, Film一mulching, Mathematical model

Cite this article

Feng Liping, Liu Dezhang, Han Xuexin. The Relationship Between Growing Period of Cotton and Temperature,Soil Moisture and Length. of Sunshine[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1990, 5(1): 57-63. doi: 10.3321/j.issn:1000-7091.1990.01.011.

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