|Table of Contents|

Effects of Different Irrigation Methods of Lettuce of  Spring Open Cultivation in Beijing(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年11
Page:
8-12
Research Field:
Publishing date:

Info

Title:
Effects of Different Irrigation Methods of Lettuce of  Spring Open Cultivation in Beijing
Author(s):
XU Houcheng1; CHENG Ming1; AN Shunwei1; MENG Fanyu1; JIA Songtao2; TIAN Wei2
(1.The Agricultural Technology Extending Station of Beijing，Beijing 100029；2.Tongzhou Agricultural Technology Extending Station，Beijing 102200)
Keywords:
drip irrigation; micro spray; lettuce of open cultivation; yield; quality; crop coefficient
PACS:
-
DOI:
10.11937/bfyy.201711002
Abstract:
To determine the suitable irrigation method of lettuce in Beijing spring open cultivation，lettuce ‘Leida’ was used as test material，three different treatments were carried out to research the effects on the growth，quality and yield of lettuce based on the conventional irrigation treatment，with normal irrigation as control.The results showed that the plant height and number of leaves of the conventional irrigation treatment were significantly lower than those in the micro-spray and side seam drip irrigation treatments.Compared with the micro-spray method，the nitrate content was lower while vitamin C was higher in side seam drip irrigation treatment，which suggested that the nutritive value and safety of fruit in side seam drip irrigation treatment was more excellent.Although the treatment of side seam drip irrigation yielded the second-highest harvest(2 797 kg per 667 m2)，its output of unilateral water was the maximum (31.3 kg?m-3)，which was 20.8% and 233.0% higher than those in micro spray treatment and conventional irrigation treatment.According to the current data，side seam drip irrigation method was more suitable for lettuce in Beijing spring open cultivation.Crop coefficients of lettuce in different growing stages were also calculated in this test.

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Last Update: 2017-06-12