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Planting Patterns Affects Soil Water and Water Use Efficiency of Summer Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2008年02期
Page:
247-250
Research Field:
Publishing date:

Info

Title:
Planting Patterns Affects Soil Water and Water Use Efficiency of Summer Soybean
Author(s):
ZHOU Xun-bo1; SUN Shu-juan1; CHEN Yu-hai1; YANG Guo-min1; YANG Rong-guang2
1Agronomy College of Shandong Agricultural University，Tai’an 271018；
2 Meteorological Experiment Station，Tai’an 271000，Shandong，China
Keywords:
Summer soybean; Planting pattern; Soil water; Water use efficiency
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2008.02.0247
Abstract:
Previous research stated that furrow-bed planting and different plant densities affect water use efficiency（WUE) of summer soybean significantly.In order to find out the character of WUE under different population distribution patterns，and effects of planting patterns on soil water of summer soybean in Tai’an city，Shandong province，field trail was designed consisting of 5 distribution patterns under the same plant population(3.09×105 plant hm-2)，and row spacing（cm) plant spacing（cm) was A（18 cm×18 cm)，B(27 cm×12 cm)，C(36 cm×9 cm)，D(54 cm×6 cm)，E(81 cm×4 cm) respectively.The results showed that soil moisture content（SMC) and soil storage water（SSW) in 0~90 cm soil changed as a“three peaks”curve respectively.SMC in 0~90 cm soil fluctuated as a“Z”trend and the changes were very insignificant in the 60-90 cm soil profile.Order of average value of SSW were D>A>E>C>B in growth period for all treatments.The total level of variance coefficients of A， B and C were higher than D and E treatments.WUE had a negative correlation （r=-0.981 8**)with row spacing，and a positive correlation（r=0.986 1**) with yield.The WUE of A，B and C treatments were significantly higher than D and E treatments，and that of E treatment significantly lower than other treatments（P<0.01).

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Last Update: 2014-10-10