|Table of Contents|

Status Investigation of Fertilizing on Greenhouse Vegetable Production in Yellow River Irrigation Area(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年14期
Page:
45-48
Research Field:
Publishing date:

Info

Title:
Status Investigation of Fertilizing on Greenhouse Vegetable Production in Yellow River Irrigation Area
Author(s):
LIU Hua1; ZHANG Sheng-qiang2; CAO Jing2
1.Cash-crops Technology Extension Center of Gansu,Lanzhou,Gansu 730000;2.School of Life Science,Key Laboratory of Arid and Grassland Ecology,Lanzhou University,Lanzhou,Gansu 730000
Keywords:
greenhouse vegetable; Yellow River irrigation area; status of fertilizer supply; soil pH
PACS:
S 626
DOI:
-
Abstract:
By questionnaire investigation and laboratory testing,the status of fertilizer supply based on greenhouse vegetable production was analyzed in Yellow River irrigation area.The results showed that there was a big blindness for application rates of organic manure and chemical fertilizer as well as the amount of irrigated water during the greenhouse cultivation.An increase in organic manure applied coupled with large amounts of chemical fertilizer supplied.Application rates of organic manure was supplied from 52~337 t/hm2.Mean annual nitrogen fertilizer，phosphorus fertilizer and potassium application rates were inputted from 1 165～4 865 kg/hm2，1 079～2 960 kg/hm2 and 631~3 321 kg/hm2,respectively.pH of soil profile in greenhouse cultivation soils was lower than those in open field soils,whereas soil EC was significantly increase in greenhouse cultivation.The soil EC of greenhouse vegetable production collected from Honggu，Gaolan，Jingyuan had exceeded the threshold value of vegetable growth (0.4 mS/cm).

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Last Update: 2014-09-17