Effects of long‐term fertilization on the weed growth and community composition in a double‐rice ecosystem during the fallow period

Huang, Shan; Pan, Xiaohua; Sun, Yanni; Zhang, Yi; Hang, Xiaoning; Yu, Xiang; Zhang, Weijian

doi:10.1111/wbm.12004

Cited by 15 publications

(6 citation statements)

References 41 publications

(96 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3, Appendix S4). Decreases in soil K content and increases in soil N:K ratios are associated with a loss of species richness (Huang et al, 2013). Moreover, P:K soil ratios can increase because the solubility and mobility of K are higher than those of P; therefore K is more easily leached than P (Olde Venterink et al, 2009).…”

Section: Potassium Stoichiometry and Global Changementioning

confidence: 99%

Potassium: a neglected nutrient in global change

Sardans

Peñuelas

2015

Global Ecology and Biogeography

411

283

View full text Add to dashboard Cite

Aim Potassium (K) is the second most abundant nutrient in plant photosynthetic tissues after nitrogen (N). Thousands of physiological and metabolic studies in recent decades have established the fundamental role of K in plant function, especially in water-use efficiency and economy, and yet macroecological studies have mostly overlooked this nutrient. MethodsWe have reviewed available studies on the content, stoichiometry and roles of K in the soil-plant system and in terrestrial ecosystems. We have also reviewed the impacts of global change drivers on K content, stoichiometry and roles. ConclusionsThe current literature indicates that K, at a global level, is as limiting as N and phosphorus (P) for plant productivity in terrestrial ecosystems. Some degree of K limitation has been seen in up to 70% of all studied terrestrial ecosystems. However, in some areas atmospheric K deposition from human activities is greater than that from natural sources. We are far from understanding the K fluxes between the atmosphere and land, and the role of anthropogenic activities in these fluxes. The increasing aridity expected in wide areas of the world makes K more critical through its role in water-use efficiency. N deposition exerts a strong impact on the ecosystem K cycle, decreasing K availability and increasing K limitation. Plant invasive success is enhanced by higher soil K availability, especially in environments without strong abiotic stresses. The impacts of other drivers of global change, such as increasing atmospheric CO2 or changes in land use, remain to be elucidated. Current models of the responses of ecosystems and carbon storage to projected global climatic and atmospheric changes are now starting to consider N and P, but they should also consider K, mostly in arid and semi-arid ecosystems.

show abstract

Section: Potassium Stoichiometry and Global Changementioning

confidence: 99%

Potassium: a neglected nutrient in global change

Sardans

Peñuelas

2015

Global Ecology and Biogeography

411

283

View full text Add to dashboard Cite

show abstract

“…Several studies have reported that fertilization has a strong impact on weed species' abundance and diversity (Banks et al, 1976;Nie et al, 2009;Cheimona et al, 2016). In particular, quite a few experiments have demonstrated that high level of nitrogen (N) fertilization results in decrease of weed species richness (Pyšek and Lepš, 1991;Inouye and Tilman, 1995) and change of the weed species composition, since specific species are favored (Mahn, 1988;Gu et al, 2007;Huang et al, 2013). Moreover, Storkey et al (2010) found that several rare and endangered weed species were further reduced due to the added nitrogen.…”

Section: Introductionmentioning

confidence: 99%

Weed-Species Abundance and Diversity Indices in Relation to Tillage Systems and Fertilization

Travlos

Cheimona

Roussis

et al. 2018

Front. Environ. Sci.

View full text Add to dashboard Cite

Weeds pose a major threat to world agriculture by reducing detrimentally crop yield and quality. However, at the same time, weeds are major interacting components of the agroecosystems. Abundance and diversity of weeds vary significantly among the several communities. In order to evaluate each community's structure and the interactions among them, several population indices are used as key tools. In parallel, various cultivation and land management strategies, such as tillage and fertilization, are commonly used in terms of integrated weed management. Estimating the response of weed species on those practices is crucial for both biodiversity maintenance and alternative weed control methods. Many experiments have confirmed the fundamental role of tillage intensity and nutrition supply in weed species' abundance and diversity. For instance, in some studies, the abundance of perennial weeds was doubled under reduced tillage intensity. In addition, higher values of Shannon-Weiner and Pielou indices were reported in the PK fertilization treatment compared to the control and NK fertilization treatments. The objective of this paper is to provide a brief overview of the key results of these experiments and summarize the part of the literature related to the effect of tillage systems and fertilization on weed species abundance and diversity. Such knowledge could contribute to the sound design and implementation of integrated weed management programs which in turn may lead to a decrease in the density of serious and noxious weeds and an increase in the overall balance of agroecosystems.

show abstract

“…However, it has been shown that the variability of physical properties is lower compared to chemical properties, mainly because they respond to macrogeographic conditions such as climate, topography and geological parent material (Novillo et al, 2018;Awal et al, 2019). Recently, it has been evidenced that physicochemical variation responds mainly to intrinsic and anthropogenic factors of the crop, even to a greater extent than in relation to environmental conditions (Huang et al, 2013;Little et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Physicochemical variability of agricultural soils in the bulb onion (Allium Cepa L.) crop of the irrigation and drainage district Usochicamocha in Boyacá, Colombia

Forero-Pineda

Serrano-Cely

Forero-Ulloa

et al. 2022

Rev. Colomb. Cienc. Hortic

View full text Add to dashboard Cite

The bulb onion crop, besides being one of the main vegetable crops worldwide for Boyacá, is considered one of the pillars of the regional agricultural economy. Despite being so important from the economic aspect, at the agricultural level this crop has several problems among which stand out the nutritional requirements of the crop and poor practices in terms of soil management and conservation. That is why it is important to understand the physicochemical variability of the soil associated with the crop and how these can be related to intrinsic processes at a local geographic scale. To determine the variability of soil physicochemical conditions in the bulb onion crop, a total of 15 zones of 50m x 50m within the Usochicamocha irrigation district were analyzed. Soil samples were collected and subsequently analyzed in the laboratory. Information was obtained on parameters such as pH, OM%, ED, bulk density, soil texture, Ca, Mg, K, Na and P. The soil data obtained allowed us to observe the grouping patterns of study zones which have no geographical incidence, suggesting that intrinsic characteristics of the crops such as agricultural practices would play a more important role in the physicochemical variability than extrinsic factors such as the ecogeographic range of the zone. Our results support efforts to continue exploring the variability of soil physicochemical conditions within a crop and how these may relate to local soil management and conservation practices after each harvest season.

show abstract

Effects of long‐term fertilization on the weed growth and community composition in a double‐rice ecosystem during the fallow period

Cited by 15 publications

References 41 publications

Potassium: a neglected nutrient in global change

Potassium: a neglected nutrient in global change

Weed-Species Abundance and Diversity Indices in Relation to Tillage Systems and Fertilization

Physicochemical variability of agricultural soils in the bulb onion (Allium Cepa L.) crop of the irrigation and drainage district Usochicamocha in Boyacá, Colombia

Contact Info

Product

Resources

About