Results 21 to 30 of about 120,054 (264)

Spatial variation of soil nutrients and evaluation of cultivated land quality based on field scale

open access: yesOpen Geosciences, 2023
The current cultivated land quality (CLQ) evaluation method fails to consider the determination of soil nutrients, resulting in the low efficiency of soil nutrient message extraction.
Wang Lishu   +4 more
doaj   +1 more source

Rubber trees demonstrate a clear retranslocation under seasonal drought and cold stresses

open access: yesFrontiers in Plant Science, 2016
Having been introduced to the northern edge of Asian tropics, the rubber tree (Hevea brasiliensis) has become deciduous in this climate with seasonal drought and cold stresses.
Yuwu Li, Guoyu Lan, Yujie Xia
doaj   +1 more source

Characteristics and metabolic potentials of bacterial communities in arsenic-contaminated soils from a typical brick kiln in China

open access: yesAgricultural Ecology and Environment
Production activities in brick kilns lead to arsenic (As) enrichment in surrounding soils. This poses serious threats to the ecological safety of the soil and human health.
Zhenchang Zhang   +6 more
doaj   +1 more source

Nitrogen Use Efficiency in Maize over Sixteen Years of Unbalanced Fertilization with Nitrogen and Potassium

open access: yesAgriculture
Adequate fertilization with nitrogen (N) and potassium (K) is essential to sustain crop productivity and minimize nitrogen losses to the environment. However, the increasing imbalance in fertilizer use in Poland, with low potassium inputs, may impair ...
Agnieszka Rutkowska   +1 more
doaj   +1 more source

Soil Microbiology and Nutrient Cycling

open access: yes, 2010
Soil organisms play a central role in the recycling of nutrients in soils, making them available to plants, transforming some nutrient elements to gaseous forms which can be lost from soil, and other transformations which predispose nutrients to loss. In this chapter we will illustrate these processes in the context of sustainable crop production.
Hopkins, D. W., Dungait, J. A. J.
openaire   +1 more source

An optimized method for extraction and purification of inorganic phosphate from plant material for oxygen isotope ratio analysis

open access: yesMethodsX
Compound-specific stable isotope ratio analysis of oxygen isotopes in inorganic phosphate can be used to study biological phosphorus cycling and the transformation processes controlling the fate of phosphorus. However, methods for extraction of inorganic
Maria Monrad Rieckmann   +3 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Pre-monsoon spatial distribution of available micronutrients and sulphur in surface soils and their management zones in Indian Indo-Gangetic Plain.

open access: yesPLoS ONE, 2020
The efficient (site-specific) management of soil nutrients is possible by understanding the spatial variability in distribution of phyto-available nutrients (here after called available nutrients) and identifying the soil management zones (MZs) of ...
A K Shukla   +17 more
doaj   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

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