Effect of Different Light Environment and Irrigation Amount on the Growth of Brassica chinensis var.chinensis in Ditch Cultivation(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2014年07期

Page:

39-44

Research Field:

Publishing date:

Info

Title:

Effect of Different Light Environment and Irrigation Amount on the Growth of Brassica chinensis var.chinensis in Ditch Cultivation

Author(s):

ZHANG Min¹; 2; XUE Xu-zhang²; ZHANG Fu-cang³; FAN Qiang⁴; LI Xia¹; WANG Guo-dong¹

1.College of Science，Northwest Agricultural and Forestry University，Yangling，Shaanxi 712100；

2.National Engineering Research Center for Information Technology in Agriculture，Beijing 100097；

3.Northwest Agricultural and Forestry University，Yangling，Shaanxi 712100；

4.College of Water Resources and Architectural Engineering，Northwest Agricultural and Forestry University,Yangling,Shaanxi 712100

Keywords:

planting with ditch; closed greenhouse; cooling; water productivity; Brassica chinensis var.chinensis

PACS:

S 161.4+1

DOI:

-

Abstract:

According to high temperature in summer in closed greenhouse,taking Brassica chinensis var.chinensis as material,the ditch cultivation was used to creation suitable growth environment for crops,effect of different light environment and irrigation of growth and water productivity in closed greenhouse were studied.The results showed that in the experiment of light environment,the temperature of R+D was maximum,the humidity remained at the 25%～60%,the trend of illumination was similar like a parabola.At the end of experiment,the plant height of R+1/2 was the highest and the leaf number of CK was the smallest in all treatments.The day transpiration of R+1/2 was the biggest,the change of the diurnal transpiration of all treatments did not follow a single peak curve.The water consumption and water productivity of R+1/2 was maximum.In the experiment of different irrigation,the plant height,leaf number,yield,water consumption and water productivity showed as 2T＞3T＞1T.Therefore,supplementary illumination and irrigation in the ditch cultivation can improve the yield and water productivity greatly.

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