Analysis of Soil Nutrients of Tobacco Growing Soils in Zhoukou
WANG Jin-qiao et al (Shangshui Tobacco Company in Zhoukou of Henan Province,Zhoukou,Henan 466100)
[Objective] The research aimed to provide scientific reference for reasonable fertilizer application of flue-cured tobacco and study the nutrients of tobacco growing soils in Zhoukou.[Method] From analyzing the soil of representative samplings in tobacco growing area of Shangshui,Luyi,Dancheng County,the content of organic matter,alkali-hydro nitrogen,available P and K were analyzed.[Result] The results indicated that organic matter and available N was high,available P was low in most soil and available K was rich,contents of soluble chloride was high,while available boron was deficiency.Moreover,difference existed among nutrient element of four counties.[Conclusion] The fertilization principle of of controlling nitrogen,increasing phosphorus,stabilizing potassium,increasing calcium boron and manganese in tobacco production was proposed.