Effect of Different Nitrogen and Potassium Fertilizer on Yield and Quality of Watermelon(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Different Nitrogen and Potassium Fertilizer on Yield and Quality of Watermelon

Author(s):: ZHU Haitao1; XU Sixin1; YU Tingyuan1; LIN Tianjie2; FAN Hongwei2; CAI Shumei1; (1.Eco-environment and Plant Protection Institute,Shanghai Academy of Agricultural Science,Shanghai Key Laboratory of Protected Horticultural Technology/Shanghai Scientific Observation and Experimental Station for Agricultural Environment and Land Conservation Shanghai,Shanghai 201403；2.Shanghai Agro-technology Extension and Service Center,Shanghai 201103)

Abstract:: In order to offer theoretical basis for reasonable and efficient fertilization on protected watermelon in greenhouse,the effects of different nitrogen and potassium fertilizer on growth,development,yield and quality of watermelon were studied.The results showed that watermelon yield improving with the amount of the nitrogen fertilizer increasing,however,667 m2 nitrogen application over amount 10 kg decreased the yield.The increase of potassium supply could greatly increase the quality of watermelon,The sugar-acidity ratio of higher potassium supply（16 kg K2O per 667 m2） got 4.57%-6.27% more than the lower potassium supply（14 kg K2O per 667 m2）.Under the experiment condition the recommendation N and K2O fertilization were 6.73 and 16 kg per 667 m2.

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Last Update: 2016-07-28