Dynamic Growth Models Joint with Changes of Accumulated Soil Temperature for Corn Mulched and Unmulched with Plastic Film in Hetao Areas of Inner Mongolian Autonomous Region

Abstract

Abstract: Based on the observed data and logistic model,dynamic growth models joint with changes of the accumulated soil temperature for corn mulched and unmulched with plastic film in Hetao areas of the Inner Mongolian Autonomous Region were established.The simulated results showed that by plastic film mulching the soil temperature increased and the growth of corn roots was effectively accelerated.The length,dry matter number and bulk of roots by plastic film mulching were higher by 7.5cm,16.2g,17.5,3.6 cm3 respectively than that without mulching.The height of plant,dry matter of stem,dry matter of leaves,leaf area index and dry matter above ground were more by 4.1cm,19.7g,3.2g,253.5g and 455.4g respectively than that without mulching.The corn growth and yield were improved by plastic film mulching.

Key words: Corn, Corn, Root growth, Growth of corn above ground, Dynamic model

KONG De-yin1,ZHI Hai2,ZHANG Fu-qiang1,ZHANG Lian-xia2,HAN Jun2 (1.Institute of Agro-meteorology of Bayannaoer City,Linhe 015000,China;2.Meteorological Bureau of Bayannaoer City). Dynamic Growth Models Joint with Changes of Accumulated Soil Temperature for Corn Mulched and Unmulched with Plastic Film in Hetao Areas of Inner Mongolian Autonomous Region[J]. Chinese Journal of Agrometeorology.

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Dynamic Growth Models Joint with Changes of Accumulated Soil Temperature for Corn Mulched and Unmulched with Plastic Film in Hetao Areas of Inner Mongolian Autonomous Region

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