|Table of Contents|

Effect of Planting Density,Irrigation Intensity and Nitrogen Application on Pumpkin Yield in Northern Semi-arid Region(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年13
Page:
1-5
Research Field:
Publishing date:

Info

Title:
Effect of Planting Density,Irrigation Intensity and Nitrogen Application on Pumpkin Yield in Northern Semi-arid Region
Author(s):
Tana1; CUI Yanwei1; KIYOSHI Ozawa2; SHI Tao1; NAKAMOTO Kazuo3; WANG Hai1
(1.Institute of Grassland Research,Chinese Academy of Agricultural Sciences,Hohhot,Inner Mongolia 010010；2.Meiji University,Kawasaki,Japan 2150035；3.Japan International Research Center for Agricultural Sciences,Tsukuba,Japan 3058686)
Keywords:
pumpkin; yield; density; irrigation intensities; nitrogen application
PACS:
-
DOI:
10.11937/bfyy.201613001
Abstract:
Pumpkin is one of suitable crops for increasing economic output in northern semi-arid region.Pumpkin variation ‘Red sweet chestnut’ was planted under three planting densities(1 666 plants?hm-2,2 500 plants?hm-2,5 000 plants?hm-2), two irrigation intensities(3-4 and 6-8 mm?day-1),and four cow dung application levels(nitrogen 25,50,75,100 kg?hm-2)in fields to evaluate the effects of planting density,irrigation amount and cow dung nitrogen application on pumpkin yield.The results showed that yield increased linearly as nitrogen application increased in plots of planting density 2 500 and 5 000 plants?hm-2,where yield difference between irrigation intensities was not found and water productivity was more in irrigation intensity 4.2 mm?day-1 than in 8.3 mm?day-1.In the plot of planting density 1 666 plants?hm-2,water productivity increased linearly as nitro application increased,where water productivity difference between irrigation intensities was not found.It was concluded that with the increasing of nitrogen application,pumpkin yield and water productivity increased linearly under planting density of 1 666 plants?hm-2.Under the irrigation intensity of 4.2 and 8.3 mm?day-1,pumpkin yield reached to 6.99 t?hm-2 and 15.34 t?hm-2,respectively.

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Last Update: 2016-07-22