作物旋转位置和供应对冬季小麦根部发育和产量形成的影响
Jessica Arnhold1, Dennis Grunwald1, Andrea Braun-Kiewnick2
1Department of Agronomy, Institute of Sugar Beet Research, Göttingen, Germany.
Frontiers in plant science
|November 8, 2023
概括
在连续的小麦作物后,小麦产量下降,即使没有明显的疾病. 油菜后在小麦中增强的根生长表明,除了疾病管理之外,作物轮换还有好处.
科学领域:
- 农业学是一种农业学.
- 植物科学 植物科学
- 土壤科学 土壤科学
背景情况:
- 持续种植小麦往往导致产量减少,通常归因于疾病压力增加.
- 然而,即使没有明显的真菌感染,也可能出现产量损失,这表明其他因素也有所贡献.
研究的目的:
- 调查小麦的作物轮换位置 (第一小麦,油菜后的第二小麦或单一栽培) 对小麦增长和产量的三年影响.
- 分析对生物质,根部发育,营养吸收,全吃疾病和谷物产量组成部分的影响.
主要方法:
- 一个长期的实地实验进行了三年.
- 在油强奸之后,小麦被种植为第一和第二作物,并在单一栽培中种植.
- 测量包括地面生物质,根部发育,营养获取,全食发生和谷物产量.
主要成果:
- 在油菜后的小麦中,地底根长度密度明显高于小麦后的小麦,而不是小麦后的小麦,无论采用什么水平.
- 在地表生物质的差异很早就被观察到,并持续到收获.
- 谷物产量损失与雨季的收获严重程度相关,但在没有明显疾病的干旱年也出现了产量差异.
结论:
- 农作物旋转的位置会影响小麦的生长和产量,而不影响疾病的压力.
- 在像油菜这样的中期作物之后,在小麦中加强根部的发展可能是提高生物质和谷物产量的关键因素.
更多相关视频
07:45An Optimized Rhizobox Protocol to Visualize Root Growth and Responsiveness to Localized Nutrients
Published on: October 22, 2018
15.9K
10:29Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
Published on: March 21, 2016
12.4K
相关概念视频
02:35Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K
02:11The Roles of Bacteria and Fungi in Plant Nutrition
35.7K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
35.7K
02:34Water and Mineral Acquisition
33.1K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
33.1K