Results 21 to 30 of about 511,075 (355)

Assessing Machine Learning-Based Prediction under Different Agricultural Practices for Digital Mapping of Soil Organic Carbon and Available Phosphorus

Agriculture, 2022
Predicting soil chemical properties such as soil organic carbon (SOC) and available phosphorus (Ava-P) content is critical in areas where different land uses exist. The distribution of SOC and Ava-P is influenced by both natural and anthropogenic factors.
F. Kaya, A. Keshavarzi, R. Francaviglia, Gordana Kaplan, L. Başayiğit, M. Dedeoğlu   +5 more
semanticscholar   +1 more source

Silicon increases the phosphorus availability of Arctic soils [PDF]

Scientific Reports, 2019
AbstractPhosphorus availability in soils is an important parameter influencing primary production in terrestrial ecosystems. Phosphorus limitation exists in many soils since a high proportion of soil phosphorus is stored in unavailable forms for plants, such as bound to iron minerals or stabilized organic matter. This is in spite of soils having a high
Jörg Schaller, Samuel Faucherre, Hanna Joss, Martin Obst, Mathias Goeckede, Britta Planer-Friedrich, Stefan Peiffer, Benjamin Gilfedder, Bo Elberling   +8 more
openaire   +5 more sources

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

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

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

Agricultural 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, Liangliang Du, Zisheng Xing, Rui Zhang, Fuqiang Li, Tao Zhong, Fangfang Ren, Meng Yin, Lin Ding, Xingrong Liu   +9 more
doaj   +1 more source

Phosphorus nutrition of ectomycorrhizal and arbuscular mycorrhizal tree seedlings from a lowland tropical rain forest in Korup National Park, Cameroon [PDF]

, 1998
The relationship between mycorrhizal colonisation and phosphorus acquired by seedlings of the arbuscular mycorrhizal tree Oubanguia alata Bak f. (Scytopetalaceae) and the ectomycorrhizal tree Tetraberlinia moreliana Aubr.
Alexander, I.J., Fitter, A.H., Moyersoen, B.   +2 more
core   +1 more source

Soil enzyme activities in the rhizosphere of field-grown sugar beet inoculated with the biocontrol agent Pseudomonas fluorescens F113 [PDF]

, 1998
The original publication is available at www.springerlink.com . Copyright Springer DOI : 10.1007/s003740050397Pseudomonas fluorescens F113, which produces the antimicrobial compound 2,4-diacetylphloroglucinol is a prospective biocontrol agent.
Lynch, J.M., Moenne-Loccoz, Y., Naseby, D.C., O'Gara, F., Powell, J.   +4 more
core   +1 more source

Determination of available phosphorus in alkaline soil by molybdenum blue spectrophotometry

IOP Conference Series: Earth and Environment, 2021
A rapid and accurate method for the determination of available phosphorus in alkaline soil by molybdenum blue spectrophotometry was established. The alkaline soil samples were extracted by Olsen method.
Xue Lin, Jingyu Zhang, Hong Chen, Lu Han
semanticscholar   +1 more source

A Critical Review on Soil Chemical Processes that Control How Soil pH Affects Phosphorus Availability to Plants

Agriculture, 2019
Occasionally, the classic understanding of the effect of pH on P uptake from soils is questioned through the claim that maximum P uptake occurs at a pH much lower than 6.5−7.
Chad J. Penn, James J. Camberato
doaj   +1 more source

Soil structural degradation and nutrient limitations across land use categories and climatic zones in Southern Africa [PDF]

, 2019
Although soil degradation is a major threat to food security and carbon sequestration, our knowledge of the spatial extent of the problem and its drivers is very limited in Southern Africa.
Kihara, Job, Mponela, Powell, Ndengu, Gift, Sila, Andrew M., Sileshi, Gudeta W., Tamene, Lulseged, Tondoh, Jérôme E.   +6 more
core   +1 more source

Distribution and relationship of phosphorus content in flue-cured tobacco leaf and phosphorus content in soil in Hunan tobacco-growing areas

浙江大学学报. 农业与生命科学版, 2007
The phosphorus contents for 308 flue-cured tobacco leaf samples and 1342 soil samples were determined in Hunan tobacco-growing areas, and their distribution and relationship were analyzed.
XU Zi-cheng, WANG Lin, XIAO Han-qian
doaj   +1 more source