Effect of Different Years of Continuous Cropping on Garlic Growth and Physiological Activities(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Different Years of Continuous Cropping on Garlic Growth and Physiological Activities

Author(s):: TIAN Chunli1; WANG Xizhi1; YAO Lijuan1; WANG Lihe1; LI Benyin2; JIA Yunchao1; (1.College of Agriculture and Engineer,Henan Vocational College of Agriculture，Zhongmou，Henan 451450；2.Nutrition and Resource Environment Research Institute，Henan Academy of Agricultural Sciences，Zhengzhou,Henan 450002)

Abstract:: With the soilscropped garlic for 0 (control)，10，20，30 years as test materials，apot experiment was conducted to study the effect of continuous cropping onthe garlicgrowth and physiological activities.The results showed that the biological indicators of garlic were declined rapidly first and then slowly with the increasing of continuous cropping years.Continuous cropp-ingobstacle occurred in the 10 years with the index decreased，such as average height,pseudostem diameter，diameter of garlic bulb and individual garlic fresh weight.There was no significant difference between 10 years continuous cropping and 20 years,but when continue to 30 years，the continuous cropping obstacles appeared more obvious.At the same time，the chlorophyll content and superoxide dismutase (SOD)，peroxidase (POD) activity were reduced notably except catalase (CAT) with different continuous cropping years.In conclusion，with nitrogen，phosphorus and potassium sufficiently supplied，continuous cropping decreased the photosynthetic properties and antioxidant enzyme activity of garlic，continuous croppingobstacle occurred in short-term (10 years) and more serious in long-term (30 years),therefore,the harm of continuous cropping obstacle would be reduced by crop rotation.

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Last Update: 2016-04-25