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Vertical distribution of soil available phosphorus and soil available potassium in the critical zone on the Loess Plateau, China [PDF]
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
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Effects of pseudogley chemical amelioration on the changes in soil and plant phosphorus and potassium contents [PDF]
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
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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
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Spatial mapping of soil chemical properties using multivariate geostatistics. A study from cropland in eastern Croatia [PDF]
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
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[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
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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
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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
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Availability of soil potassium and diagnostic soil tests [PDF]
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.
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Using Soil Tests to Evaluate Plant Availability of Potassium in Soils [PDF]
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
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Soil pH and Nutrient Characteristics of Newly-added Cultivated Land in Heyang, China [PDF]
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
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