|Table of Contents|

Effects of Different Drip-irrigation Frequency and Amount of Nitrogen on  Growth and Development of Greenhouse Squash

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年07
Page:
1-8
Research Field:
Publishing date:

Info

Title:
Effects of Different Drip-irrigation Frequency and Amount of Nitrogen on  Growth and Development of Greenhouse Squash
Author(s):
GUO Pengfei1; 2; ZHANG Xiaoqian1; 2; HAN Wen1; 2; ZHANG Kun1; 2; DIAO Ming1; 2
(1.Department of Horticulture,College of Agronomy,Shihezi University,Shihezi,Xinjiang 832003;2.Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization,Shihezi,Xinjiang 832003)
Keywords:
squash;  irrigation frequency;  nitrogen fertilizer;  yield;  water use efficiency
PACS:
-
DOI:
10.11937/bfyy.20173352
Abstract:
In order to explore effects of irrigation frequency and nitrogen fertilizer on growth of squash,the fixed irrigation quota was 629.87 mm,planting squash in a solar greenhouse by using four treatments which included two irrigation frequencies (high frequency was once every two days and low frequency was once every seven days) and two nitrogen fertilizer (high nitrogen level was 565 kg?hm-2 and suitable nitrogen level was 375 kg?hm-2),there were low frequency and suitable nitrogen (treatment Ⅰ),high frequency and suitable nitrogen (treatment Ⅱ),low frequency and high nitrogen (treatment Ⅲ),high frequency and high nitrogen (treatment Ⅳ).The results showed that under the same level of nitrogen fertilizer,leaf area,dry plant mass,yield and water use efficiency of high frequency irrigation were higher than that of low frequency irrigation.As a given fixed irrigation quota,irrigation frequency level affect water use efficiency more substantially than nitrogen fertilizer;under the suitable nitrogen level,squash yield was sensitive to irrigation frequency,and squash yield in the high frequency irrigation treatments was 13.90% higher than that in the low frequency irrigation treatments,however,for high nitrogen treatment,increasing irrigation frequency had no significant effect on yield,which indicated that the sensitivity of squash yield to irrigation frequency was low.In the whole growth period,high frequencies treatments maintained good soil moisture content,decreased deep percolation,and reduced water consumption.The priority of four treatments were selected in the order of treatment Ⅱ> treatment Ⅳ> treatment Ⅲ > treatmentⅠ.Treatment Ⅱ was recommended for greenhouse squash in solar greenhouse when growth and yield were considered comprehensively.

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Last Update: 2018-04-17