WEED INFESTATION AND BIODIVERSITY OF WINTER WHEAT UNDER THE EFFECT OF LONG-TERM CROP ROTATION
WEED INFESTATION AND BIODIVERSITY OF WINTER WHEAT UNDER THE EFFECT OF LONG-TERM CROP ROTATION
复制标题
长期轮作影响下冬小麦杂草侵染及生物多样性
DOI：
--
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
L. Nikolić
中科院分区：
文献类型：
--
作者：
L. Nikolić
本文介绍了在塞尔维亚（诺维萨德）附近的试验站对长期轮作条件下冬小麦杂草区系组成和杂草危害的研究。在研究期间，共测定了48种杂草，其中33种在每个研究年度测定。在两个研究年度中，共有18种，而1991年确定的15种在19年后没有发现。另一方面，2010年的研究记录了15种以前没有发现的新物种，其中1991年施肥4年轮作和2010年未施肥2年轮作的植物区系多样性最高（20种）。最低的多样性记录在2010年施肥四年轮换（9种）和施肥三年轮换（10种）。最高的杂草侵扰记录在1991年的未施肥的两年轮换（2963株m-2）和未施肥的三年轮换（2126株m-2），这是统计学显着相比，其他变种。在2010年观察到最低的平均杂草侵扰施肥三年轮作（40株m-2）和施肥四年轮作（53株m-2）。长期轮作对冬小麦田杂草的区系组成和结构有显著影响。
The paper presents the study of the floristic composition of weeds and weed infestation in winter wheat in long-term crop rotations at the experimental station near Novi Sad (Serbia). During the study period, a total of 48 weed species were determined, out of which 33 were determined in each study year. In two study years, there were 18 common species, while 15 species determined in 1991 were not found 19 years later. On the other hand, the study in 2010 recorded 15 new species that had not been previously found. The greatest floristic diversity (20 species) was found on fertilized four-year rotation in 1991 and unfertilized two-year rotation in 2010. The lowest diversity was recorded in 2010 on fertilized four-year rotation (9 species) and fertilized three-year rotation (10 species). The highest weed infestation was recorded in 1991 on unfertilized two-year rotation (2963 plants m -2 ) and unfertilized three-year rotation (2126 plants m -2 ), which is statistically significant compared to other variants. The lowest average weed infestation was observed in 2010 on fertilized three-year rotation (40 plants m -2 ) and fertilized four-year rotation (53 plants m -2 ). Long-term crop rotations have a significant effect on the floristic composition and structure of weeds in winter wheat.