林业科学 ›› 2020, Vol. 56 ›› Issue (3): 164-171.doi: 10.11707/j.1001-7488.20200317
乔永1,王小平1,2,*
收稿日期:
2019-05-13
出版日期:
2020-03-01
发布日期:
2020-04-08
通讯作者:
王小平
基金资助:
Yong Qiao1,Xiaoping Wang1,2,*
Received:
2019-05-13
Online:
2020-03-01
Published:
2020-04-08
Contact:
Xiaoping Wang
摘要:
目的: 研究不同施用量及不同配比的城市污泥和园林废弃物混合堆肥对桑树种子萌发和幼苗生长的影响,探究有利于桑树生长的施用量及配比的混合堆肥最佳组合,为城市污泥和园林废弃物的合理利用提供科学依据。方法: 配制不同施用量(CK、T1、T2、T3、T4,即混合堆肥与土壤体积比为0:1、1:3、1:1、3:1、1:0)及4种不同配比(W01、W13、W11、W10,即城市污泥和园林废弃物体积比分别为0:1、1:3、1:1、1:0)的城市污泥和园林废弃物混合堆肥产品,通过盆栽试验,观察其对桑树种子萌发、幼苗不同时期株高及地上、地下生物量积累的影响。结果: 4种不同配比混合施肥的全部处理均对桑树种子萌发产生抑制作用,在施肥量相同情况下,W10配比对种子萌发抑制作用最强烈;在各配比中,T4处理对桑树种子萌发抑制程度最高;在桑树幼苗生长前期(30~60天),各配比幼苗堆肥产品随施肥量增加均显著抑制桑树幼苗生长,抑制作用随试验时间延长而减弱,在试验后期(120天),一些配比处理转为促进桑树混合生长,幼苗株高最大值出现在W11配比T2处理;除W10配比T4处理外,其余全部处理均不同程度提高桑树地上、地下生物量积累。结论: 城市污泥和园林废弃物混合堆肥产品会对桑树种子萌发产生抑制作用,并显著抑制桑树幼苗前期生长,但随时间延长会促进桑树幼苗生长和生物量积累,其中以W11配比T1处理(施用25%的污泥和园林废弃物体积比1:1混合堆肥)效果最佳。
中图分类号:
乔永,王小平. 城市污泥和园林废弃物混合堆肥对桑树种子萌发和幼苗生长的影响[J]. 林业科学, 2020, 56(3): 164-171.
Yong Qiao,Xiaoping Wang. Effects of Mixed Compost of Municipal Sludge and Garden Waste on Germination and Seedling Growth of Mulberry[J]. Scientia Silvae Sinicae, 2020, 56(3): 164-171.
表1
供试材料基本理化性质①"
供试材料 Tested materials | pH | 电导率 Conductivity/ (μs·cm-1) | 有机质 Organic matter/(g·kg-1) | 全氮 Total nitrogen/(g·kg-1) | 全磷 Total phosphorus/(g·kg-1) | 全钾 Total potassium/(g·kg-1) |
供试土壤Soil | 8.15 | 135.7 | 19.59 | 1.57 | 1.05 | 3.51 |
W01 | 8.26 | 794.6 | 509.54 | 19.82 | 1.85 | 5.52 |
W13 | 7.92 | 1 460.8 | 416.41 | 22.17 | 9.08 | 7.36 |
W11 | 7.57 | 1 561.8 | 398.76 | 26.58 | 10.64 | 7.78 |
W10 | 7.19 | 1 654.2 | 368.57 | 28.73 | 15.52 | 8.96 |
表2
混合堆肥产品重金属含量"
混合堆肥 Composts | Zn/ (mg·kg-1) | Cu/ (mg·kg-1) | Pb/ (mg·kg-1) | Cd/ (mg·kg-1) | Cr/ (mg·kg-1) | As/ (mg·kg-1) | Ni/ (mg·kg-1) |
W01 | 13.72 | 3.44 | 2.76 | 0.016 | 11.52 | 2.07 | 8.16 |
W13 | 263.58 | 62.17 | 20.34 | 0.562 | 27.49 | 9.84 | 20.15 |
W11 | 393.27 | 68.73 | 25.27 | 0.689 | 34.54 | 10.78 | 21.17 |
W10 | 571.58 | 100.46 | 37.04 | 1.042 | 52.21 | 16.83 | 31.27 |
表3
城市污泥与园林废弃物混合堆肥对桑树种子萌发的影响①"
混合堆肥Composts | CK | T1 | T2 | T3 | T4 |
W01 | 81.33±4.16Aa | 79.33±4.26Aa | 70.00±2.15Bb | 67.33±1.15Bb | 29.00±2.04Cb |
W13 | 81.33±4.16Aa | 80.67±3.06Aa | 76.67±3.06Ba | 66.00±2.13Cb | 52.67±3.06Da |
W11 | 81.33±4.16Aa | 80.33±3.05Aa | 75.33±4.02Ba | 72.67±3.05Ba | 49.33±3.13Ca |
W10 | 81.33±4.16Aa | 68.33±1.89Bb | 50.67±3.06Cc | 26.00±1.95Dc | 17.00±1.47Ec |
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