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Study on Fertilizer Application Status and Soil Nutrient Accumulation of Greenhouse Vegetable in Ankang City

Guo Quan-zhong

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Abstract

Objective The aim was to study the fertilizer application status and soil nutrient accumulation characters of greenhouse vegetable.Method Fertilizer application status in more than 40 greenhouses in Ankang city was investigated and their soil nutrient contents were determined.Result Result showed that over-application of nitrogen and phosphorus was common and the application of potassium was lack.The levels of total N,available N,available P and organic matter in greenhouse were significantly higher compared with those of the cultivated soils in open field.But pH in greenhouse was lower.Conclusion Significant maladjustment of N,P and K application ratio existed in greenhouse vegetable in Ankang.It had important significance to study the rational fertilizer application ratio of greenhouse vegetable in Ankang.

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What this paper is about

Objective The aim was to study the fertilizer application status and soil nutrient accumulation characters of greenhouse vegetable.Method Fertilizer application status in more than 40 greenhouses in Ankang city was investigated and their soil nutrient contents were determined.Result Result showed that over-application of nitrogen and phosphorus was common and the application of potassium was lack.The levels of total N,available N,available P and organic matter in greenhouse were significantly higher compared with those of the cultivated soils in open field.But pH in greenhouse was lower.Conclusion Significant maladjustment of N,P and K application ratio existed in greenhouse vegetable in Ankang.It had important significance to study the rational fertilizer application ratio of greenhouse vegetable in Ankang.

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Available abstract

Objective The aim was to study the fertilizer application status and soil nutrient accumulation characters of greenhouse vegetable.Method Fertilizer application status in more than 40 greenhouses in Ankang city was investigated and their soil nutrient contents were determined.Result Result showed that over-application of nitrogen and phosphorus was common and the application of potassium was lack.The levels of total N,available N,available P and organic matter in greenhouse were significantly higher compared with those of the cultivated soils in open field.But pH in greenhouse was lower.Conclusion Significant maladjustment of N,P and K application ratio existed in greenhouse vegetable in Ankang.It had important significance to study the rational fertilizer application ratio of greenhouse vegetable in Ankang.

Key concepts: Greenhouse, Fertilizer, Nutrient, Soil nutrients, Environmental science, Agronomy, Phosphorus, Potash

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