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Effects of Fertigation Application on Growth and Yield of Tomato in Greenhouse(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年17
Page:
7-13
Research Field:
Publishing date:

Info

Title:
Effects of Fertigation Application on Growth and Yield of Tomato in Greenhouse
Author(s):
YU Xianlei1; DOU Chaoyin1; 2; MENG Weizhong2; CHEN Wei2; YAN Weichen2
1.School of Hydraulic Energy and Power Engineering,Yangzhou University,Yangzhou，Jiangsu 225009;2.Water Conservancy and Hydropower Science Research Institute of Liaoning,Shenyang,Liaoning 110003
Keywords:
drip irrigation; irrigation limit; fertigation; fertilizer dosage; plant characteristic
PACS:
S 641.225.2
DOI:
10.11937/bfyy.20164967
Abstract:
The experiments were carried out by using orthogonal test design.Tomato was taken as material,and irrigation limit (15.6%,18.0%and 20.4%),dosage of nitrogen (252.0 kg·hm-2,360.0 kg·hm-2and 468.0 kg·hm-2) and potassium (302.4 kg·hm-2,432.0 kg·hm-2and 561.6 kg·hm-2) were conducted,while local furrow irrigation was used as check treatment.The results showed that,with the increasing irrigation limit and dosage of fertilizer,a decreasing trend of plant height,stem diameter and LAI was displayed；different irrigation limit and target yield dosage showed no significant effect on plant height and stem diameter,while at full productive stage,LAI treated with lower irrigation and lower nitrogen dosage was significantly higher than other treatments.Compared to the traditional furrow irrigation,drip irrigation had the effect of increasing yield.Considering the single factor,irrigation limit 18.0%,dosage of nitrogen 360.0 kg·hm-2and potassium 432.0 kg·hm-2 got the highest yield of 99.6 t·hm-2,107.4 t·hm-2 and 100.7 t·hm-2 respectively,which indicated that higher dosage and water content were adverse to yield,next lower dosage and water content.The order of the effective on the yield from high to low was dosage of nitrogen,dosage of potassium,and irrigation limit,and the optimum combination was N2K2W2.Therefore,in the research area,fertilizer was the key factor to the yield and showed negative effect with high dosage.When fertigation was applied in the greenhouse,18.0% as the irrigation limit,360.0 kg·hm-2 of nitrogen and 432.0 kg·hm-2 of potassium was recommended.

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Last Update: 2017-09-22