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Vertical distribution of soil available phosphorus and soil available potassium in the critical zone on the Loess Plateau, China [PDF]

open access: yesScientific Reports, 2021
Soil available phosphorus (SAP) and soil available potassium (SAK) are important elements in the growth of plants. However, limited data are available regarding the vertical distribution of SAP and SAK in deep soil profiles.
Hanyang Tian   +4 more
doaj   +5 more sources

Effects of pseudogley chemical amelioration on the changes in soil and plant phosphorus and potassium contents [PDF]

open access: yesJournal of Agricultural Sciences (Belgrade), 2004
Pseudogley is a soil type that is under natural conditions characterized by unfavorable properties, the most pronounced being insufficient amounts of basic plant nutrients.
Bošković-Rakočević Ljiljana   +3 more
doaj   +1 more source

Effects of dual mulching with wheat straw and plastic film under three irrigation regimes on soil nutrients and growth of edible sunflower

open access: yesAgricultural Water Management, 2023
Mulching is an important practice to reduce soil water loss and improve productivity in agriculture. To investigate the influence of dual mulching with crushed wheat straw padding and plastic film combined with different irrigation amounts on soil ...
Jinxia Zhang   +9 more
doaj   +1 more source

Spatial mapping of soil chemical properties using multivariate geostatistics. A study from cropland in eastern Croatia [PDF]

open access: yesJournal of Central European Agriculture, 2021
The spatial variability of soil chemical properties is affected by factors of soil formation and human activities. Understanding their spatial variability will improve agricultural production, reduce environmental problems (e.g., soil pollution, offsite ...
Igor Bogunovic   +3 more
doaj   +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

Spatio-temporal variation characteristics of soil pH, nitrogen, phosphorus and potassium nutrients in Wenling City of Zhejiang Province

open access: yes浙江大学学报. 农业与生命科学版, 2021
Spatio-temporal variation characteristics of soil pH, soil organic matter, total nitrogen, available phosphorus and available potassium contents were determined in Wenling City of Zhejiang Province in 2006 and 2017, respectively, using the analysis ...
CHEN Jian, DING Anna, SHI Jiachun
doaj   +1 more source

Potassium mobilization and plant growth promotion by soil bacteria isolated from different agroclimatic zones of Odisha, India

open access: yesActa Agriculturae Slovenica, 2021
Potassium is essential for plant metabolism; improves immunity to stress and increase crop productivity. Soil contains insoluble form of potassium, which is unavailable for plant absorption.
Aiswarya PANDA   +2 more
doaj   +1 more source

Availability of soil potassium and diagnostic soil tests [PDF]

open access: yesSoil Research, 2006
Thirty-seven surface (0–0.10 or 0–0.20 m) soils covering a wide range of soil types (16 Vertosols, 6 Ferrosols, 6 Dermosols, 4 Hydrosols, 2 Kandosols, 1 Sodosol, 1 Rudosol, and 1 Chromosol) were exhaustively cropped in 2 glasshouse experiments. The test species were Panicum maximum cv. Green Panic in Experiment A and Avena sativa cv.
Moody, P. W., Bell, M. J.
openaire   +4 more sources

Using Soil Tests to Evaluate Plant Availability of Potassium in Soils [PDF]

open access: yes, 2020
AbstractThe purpose of this chapter is to describe how bioavailable soil K is assessed or predicted by soil tests. Soil testing commonly refers to the collection of a sample of soil representative of a field or agronomic management unit and, by way of extraction using chemical reagents, determination of the quantity of a nutrient that can be related to
Bell, Michael J.   +2 more
openaire   +3 more sources

Soil pH and Nutrient Characteristics of Newly-added Cultivated Land in Heyang, China [PDF]

open access: yesE3S Web of Conferences, 2020
In order to understand the soil pH and main nutrient characteristics of newly added cultivated land in the eastern part of Guanzhong, and 160 soil samples were collected in 2016, the soil pH, organic matter, total nitrogen, available phosphorus and ...
Li Gang   +5 more
doaj   +1 more source

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