Effects of garlic varieties and intercropping dates on growth of garlic and tomato cultivated in substrate under plastic tunnel
[Objective] This study aimed to assess the effects of garlic varieties and different intercropping dates on growth of garlic and tomato intercropped in substrate under plastic tunnel.[Method] An experiment was conducted with split plot design at the experimental research station of Northwest A&F University.Autumn "Difenni" tomato was planted on July 31,2011,and three garlic varieties (very early maturing G110,early maturing G026,and late maturing G064) were intercropped at different dates (S1 September 1,S2 September 21,and S3 October 11) during the growth of tomato.Spring tomato was planted in March 30,2012.Growth indexes of garlic and spring tomato,and secondary growth rate and single-clove bulb rate of garlic were measured.[Result] G064 had the largest plant height,pseudo stem height and diameter,maximum green leaf length and width,and green leaf number,followed by G026 and G110.The influence of different intercropping dates on height of survival garlic plants at early stage was bigger than later stage.Pseudo stem heights and diameters of G026 and G064 increased gradually during the whole growth period,while that of G110 decreased at the later stage.Intercropping dates did not significantly affect the green leaf length and number of G064.The secondary growth rate of G026 was higher than that of G064 and G110.The single-clove bulb rates of G110 were over 90％,larger than G026 and G064.Intercropping showed significant effects on spring tomato and intercropping with G064 significantly decreased the plant height,stem diameter and yield of tomato.[Conclusion] Intercropping dates had significant effect on the growth of different garlic cultivars and intercropping with G064 significantly decreased the growth and production of spring tomato.Therefore,late maturing garlic cultivars should be avoided for the tomato/garlic intercropping in organic substrate under plastic tunnel.
tomatogarlicintercroppingsubstrateintercropping date
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万方数据
维普
