味精废浆有机肥对西瓜根系特性与根际土壤腐殖质组成的影响

王明友; 张红; 李士平

doi:10.13961/j.cnki.stbctb.20151012.001

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味精废浆有机肥对西瓜根系特性与根际土壤腐殖质组成的影响

试验研究

- 味精废浆有机肥对西瓜根系特性与根际土壤腐殖质组成的影响
- Effects of Monosodium Glutamate Wastewater Manure on Root Characteristics and Humus Composition in Rhizosphere Soil of Watermelon
- 水土保持通报 2015年35卷第5期页码：205-210
- 作者机构：
  
  德州学院生态与园林建筑学院,山东,德州,253023
- 作者简介：
- 基金信息：
  
  山东省科技发展计划项目"鲁西北地区新型日光温室及其蔬菜生产关键技术研究集成与示范"(2012GNC11108)
- DOI：10.13961/j.cnki.stbctb.20151012.001
  中图分类号：
- 纸质出版：2015
- 稿件说明：
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王明友, 张红, 李士平. 味精废浆有机肥对西瓜根系特性与根际土壤腐殖质组成的影响[J]. 水土保持通报, 2015,35(5):205-210.

WANG Mingyou, ZHANG Hong, LI Shiping. Effects of Monosodium Glutamate Wastewater Manure on Root Characteristics and Humus Composition in Rhizosphere Soil of Watermelon[J]. Bulletin of Soiland Water Conservation, 2015, 35(5): 205-210.
王明友, 张红, 李士平. 味精废浆有机肥对西瓜根系特性与根际土壤腐殖质组成的影响[J]. 水土保持通报, 2015,35(5):205-210. DOI： 10.13961/j.cnki.stbctb.20151012.001.

WANG Mingyou, ZHANG Hong, LI Shiping. Effects of Monosodium Glutamate Wastewater Manure on Root Characteristics and Humus Composition in Rhizosphere Soil of Watermelon[J]. Bulletin of Soiland Water Conservation, 2015, 35(5): 205-210. DOI： 10.13961/j.cnki.stbctb.20151012.001.

摘要

[目的

]

探讨味精废浆有机肥(以下简称有机肥)与化肥配施对西瓜根系吸收特性及根际腐殖质组成的影响效果。[方法

]

以黑彤K-8西瓜为试材

通过大田试验

研究CK(对照

不施肥);N

100

(纯尿素

以下简称无机肥);M

(有机和无机比例为10%和90%);M

(有机和无机比例为30%和70%)和M

(有机和无机比例各为50%)等处理对西瓜根系活力、建造水平、形态特征以及根际中根系分泌物含量与腐殖质组成的影响。[结果

]

同N

100

处理相比

处理明显提高了西瓜的根系活力

并促进了根系的生长;同时还显著增加了西瓜的总根长、根表面积、比根表面积、根体积和根尖数

而根系直径却明显降低

其中总根长较CK

100

和M

处理分别增加74.63%

40.84%

28.41%和19.37%

比根表面积分别增加了14.39%

11.64%

6.04%和7.56%。此外

处理亦提高了根际中根系分泌物和胡敏酸的含量

并提升了胡/富比

其中胡敏酸含量分别较CK

100

和M

处理提高了39.42%

30.82%和20.89%。相对于M

处理

和M

处理对西瓜的影响作用较小。[结论

]

味精废浆有机肥与化肥以3:7比例配施对西瓜根系吸收特性与根际腐殖质组成的作用效果最佳

建议作为生产实践中的施用比例。

Abstract

[Objective] The objective of the study is to explore the effect of monosodium glutamate wastewater manure(hereinafter referred to as manure) mixed with inorganic fertilizer on the root absorption characteristics and humus composition of rhizosphere soil of watermelon(Citrullus lanatus).[Methods] The present study was conducted to determine the effects of different treatments

i.e. CK(control

no fertilization); N100(pure urea

hereinafter referred to as inorganic fertilizer); M10N90(the proportion of manure and inorganic fertilizer is 10% and 90%); M30N70(the proportion of manure and inorganic fertilizer is 30% and 70%) and M50N50(the proportion of manure and inorganic fertilizer is 50% and 50%) on root activity

construction levels of root system

root morphological characteristics and root exudates

as well as humus composition in the rhizosphere soil of watermelon.[Results] The results indicated that in comparison to N100 treatment

M30N70 treatment significantly increased root activity

and promoted the root growth of watermelon. At the same time

M30N70 treatment also increased the total root length

root surface area

specific root surface area

root volume and root tip number

while the root average diameter obviously decreased. The total root length in the M30N70 treatment increased by 74.63%

40.84%

28.41% and 19.37%

and the specific root surface area was increased by 39.42%

30.82% and 20.89% compared to the treatments of CK

N100

M10N90 and M50N50

respectively. In addition

M30N70 treatment obviously increased the contents of root exudates and humic acid

and increased the ratio of humic acid to fulvic acid

showing 137.36%

47.95% and 33.33% increase in humic acid content compared with the treatments of CK

N100 and M10N90

respectively. However

in M10N90 and M50N50 treatments

less effects was observed than that in M30N70 treatment.[Conclusion] Monosodium glutamate wastewater mixed with inorganic fertilizer

especially M30N70 treatment

is beneficial to the root absorption characteristics and humus composition in the rhizosphere soil of watermelon

and it is recommended as the suitable fertilization proportion in the practice.

关键词

Keywords

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