Results 51 to 60 of about 319,002 (336)

Soil Fertility Protocol [PDF]

open access: yes, 2003
The purpose of this resource is to measure the amounts of nitrogen, phosphorous and potassium in each horizon in a soil profile. Using a NPK test kit, students mix a dry, sieved soil sample into a solution and chemically extract the N, P, and K as ...
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Recent Advancements in Lung Cancer Metastasis Prevention Based on Nanostrategies

open access: yesAdvanced Science, EarlyView.
Metastasis is the leading cause of death in patients with lung cancer. Nanomedicine can be used to prepare efficient drug delivery systems owing to their advantages and plays an important role in the synergistic antimetastasis of lung cancer. This comprehensive review summarizes the emerging nanostrategies against lung cancer metastasis based on the ...
Fan Xu   +7 more
wiley   +1 more source

Prediction of soil fertility parameters using USB-microscope imagery and portable X-ray fluorescence spectrometry [PDF]

open access: yesSoil Advances, Volume 2, 2024, 100016
This study investigated the use of portable X-ray fluorescence (PXRF) spectrometry and soil image analysis for rapid soil fertility assessment, with a focus on key indicators such as available boron (B), organic carbon (OC), available manganese (Mn), available sulfur (S), and the sulfur availability index (SAI).
arxiv   +1 more source

Advancements in Biochar as a Sustainable Adsorbent for Water Pollution Mitigation

open access: yesAdvanced Science, EarlyView.
Biochar, obtained through pyrolysis of organic waste, serves as a sustainable solution for wastewater treatment due to its adaptability and low‐cost nature. This review comprehensively examines recent advancements in biochar production, functional modifications, and applications, highlighting the integration of machine learning and artificial ...
Devika Laishram   +3 more
wiley   +1 more source

Productivity of sorghum and millets under different in-field rainwater management options on soils of varying fertility status in Zimbabwe

open access: yesFrontiers in Agronomy
Traditional cereal crops are important for food and nutrition security in rural communities of southern Africa, but their productivity is often constrained by low soil water largely linked to low seasonal rainfall and long intra-seasonal dry spells ...
Layton Makuchete   +10 more
doaj   +1 more source

Managing Alaska Soils [PDF]

open access: yes, 2010
This publication is for the gardener who wants to gain a more thorough understanding of soil basics, including soil components, texture, structure, water permeability and chemistry.
Jahns, Thomas R.
core  

A Model of Epigenetic Inheritance Accounts for Unexpected Adaptation to Unforeseen Challenges

open access: yesAdvanced Science, EarlyView.
A general model of inheriting changes that are acquired during the lifetime of individuals demonstrates tremendous benefits to the population, including escape from extinction in changing environments. Contrasting the model with experimental data shows that inheritance of acquired changes enables rapid adaptation to unforeseen challenges, and accounts ...
Dino Osmanović   +2 more
wiley   +1 more source

Comparative short-term performance of soil water management options for increased productivity of maize-cowpea intercropping in semi-arid Zimbabwe

open access: yesJournal of Agriculture and Food Research, 2021
Rainfall variability poses a great challenge to rainfed cropping in sub-Saharan Africa. We evaluated, over three cropping seasons, conservation agriculture (reduced tillage and mulching) and farmer prioritized conventional tillage- and mulching-based ...
Vengai Mbanyele   +4 more
doaj  

Dutch soil management and soil fertility [PDF]

open access: yes, 2011
The organic sector depends heavily on its soils. In the Netherlands, relatively little acreage is available per farm compared to other countries. This means that the soil has to be kept in optimal shape for production, be it vegetables, cereals, potatoes
Sukkel, Wijnand
core  

Managing soil fertility in organic farming systems [PDF]

open access: yes, 2002
Complex relationships exist between different components of the organic farm and the quantity and quality of the end products depend on the functioning of the whole system.
Abawi   +106 more
core   +1 more source

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