Results 21 to 30 of about 1,935,089 (298)

POTASSIUM UPTAKE EFFICIENCY OF COTTON CROP AS AFFECTED BY SOIL TYPE AND K FERTILIZER LEVELS [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2007
           A pot experiment was carried out to study potassium uptake efficiency for cotton crop as affected by soil type (clay loam soil and sandy loam soil), and K fertilizer levels under the conditions of El-Sharkia Governorate during 2004 season ...
M.R.M. Ashrey   +3 more
doaj   +1 more source

How Closely Is Potassium Mass Balance Related to Soil Test Changes? [PDF]

open access: yes, 2021
Potassium (K) outputs comprise removals in harvested crops and losses via a number of pathways. No specific environmental issues arise from K losses to the wider environment, and so they have received little attention. Nevertheless, K is very soluble and
Bell, M. J.   +3 more
core   +1 more source

Quantifying mineral sources of potassium in agricultural soils [PDF]

open access: yes, 2008
Soil potassium (K) reserves are crucial for crop quality and yield in low input agricultural systems. Soils contain varying amounts of K-bearing minerals and differ in their inherent K supply capacity.
Andrist Rangel, Ylva
core   +1 more source

Nutrient Characteristics and Factors Influencing Surface Soil with Gully Erosion on Sloping Farmland for Low Hilly Terrain in Black Soil Area

open access: yesShuitu baochi tongbao, 2023
[Objective] The soil nutrient characteristics and influencing factors of surface soil gully erosion for low hilly terrain in the black soil area were studied in order to provide data and theoretical support for the rational use of land resources ...
Zhang Xiaolian   +7 more
doaj   +1 more source

Assessment of potassium in soils

open access: yesCommunications in Soil Science and Plant Analysis, 1983
Potassium in soils from selected plots of the Broadbalk Experiment at Rothamsted, and Rotation I experiment at Saxmundham, U.K.
Singh, K. D.   +2 more
openaire   +1 more source

Influence of slope aspect on soil potassium characteristics of cut slopes

open access: yes四川大学学报. 自然科学版, 2023
In order to explore the spatial distribution law of soil potassium and its components in excavated slopes, a combination of field sampling and laboratory analysis was used.
WANG Xue   +3 more
doaj  

Potassium Bioavailability in a Tropical Kaolinitic Soil

open access: yesAgronomy, 2021
Some plant species are able to acquire non-exchangeable forms of K, which improve K availability and cycling in cropping systems, and which may explain the lack of response to K. However, this would not be expected in soils dominated by kaolinite. The aim of this study was to assess non-exchangeable K (Kne) use by three selected plant species grown in ...
Marcelo Raphael Volf   +5 more
openaire   +3 more sources

Effects of super absorbent polymers and cement content on artificial soil potassium in cut slope

open access: yes四川大学学报. 自然科学版, 2023
Understanding the effect of super absorbent polymers (SAP) and cement on artificial soil potassium is helpful to improve the availability of soil potassium, which is beneficial to vegetation restoration of the slope.
ZHANG Yi-Fan   +3 more
doaj  

Evaluating status change of soil potassium from path model. [PDF]

open access: yesPLoS ONE, 2013
The purpose of this study is to determine critical environmental parameters of soil K availability and to quantify those contributors by using a proposed path model.
Wenming He, Fang Chen
doaj   +1 more source

Potassium Humate and Silicate Combined with Compost Application to Reduce the Harmful Effects of the Irrigation Water Salinity on Potato Plants and on the Soil Available Nutrient Npk [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2023
Afield experiment was conducted in order to evaluate the effect of two compounds of humate; potassium humate and silicate, in combination with compostto decrease the harmful effects of the irrigation water salinity on potato crop growth, yield and ...
M. Shabana   +3 more
doaj   +1 more source

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