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Study on A Mathematical Model for the Relationship Between Amounts of N,P,K Application and Tomato Yield in Eco-organic Soilless Culture(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年18期
Page:
12-15
Research Field:
Publishing date:

Info

Title:
Study on A Mathematical Model for the Relationship Between Amounts of N,P,K Application and Tomato Yield in Eco-organic Soilless Culture
Author(s):
XU Qiong-hua; WANG Guo-wei; XU Zheng-rong
Yuxi Agricultural Vocational and Technical College,Yuxi,Yunnan 653100
Keywords:
tomato; eco-organic and soilless culture; N; P and K fertilizer; yield
PACS:
S 641.2
DOI:
-
Abstract:
Taking Solanum lycopersicum‘Jinpeng No.1’ as material,by the saturating D-optimal design in ternary quadratic regression,the influence of cooperation application of N,P,K in the organic and soilless culture on the yield of Solanum lycopersicum in different stages were studied,and the equation model between the application amount of N,P,K and the yield of Solanum lycopersicum were also established.The results showed that the influence of N,P,K nutrient on the yield of Solanum lycopersicum in the early,middle and late stage were obvious.In the early stage,the optimum application amount of N was 0.72 g,P2O5 0.35 g,and K2O 1.00 g each plant every time,and the highest yield was up to 16.49 kg each square.In the middle stage,the optimum application amount of N was 0.78 g,P2O5 0.29 g,and K2O 1.30 g each plant every time,and the highest yield was up to 22.06 kg each square.In the late stage,the optimum application amount of N was 0.74 g,P2O5 0.30 g,and K2O 1.11 g each plant every time,and the highest yield was up to 18.01 kg each square.

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Last Update: 2014-08-13