Zobrazeno 1 - 10
of 31
pro vyhledávání: '"R. G. Menon"'
Autor:
R. G. Myers, K. R. Reddy, E. O. Skogley, S. Kuo, Peter J. A. Kleinman, Karen L. Gartley, R. G. Menon, W. M. Jarrell, Andrew N. Sharpley
Publikováno v:
Communications in Soil Science and Plant Analysis. 32:2325-2345
The widespread use of soil phosphorus (P) data, either in the context of agronomic or environmental management, requires an explicit understanding of potential errors related to soil P testing. This study compares a variety of soil P extraction metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5cec86b521c20074d8acd9fac6259bd
https://doi.org/10.1081/css-120000376
https://doi.org/10.1081/css-120000376
Publikováno v:
Soil Science Society of America Journal. 62:972-976
The Fe-oxide-impregnated paper strip (Pi) test with 0.01 M CaCl 2 has been proposed as an improved soil test for evaluating available P from soils treated with phosphate rock (PR) and triple superphosphate (TSP). However, conclusive evidence for this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c253e85ca4cd1fa6be52797b16813680
https://doi.org/10.2136/sssaj1998.03615995006200040018x
https://doi.org/10.2136/sssaj1998.03615995006200040018x
Publikováno v:
Plant and Soil. 201:183-188
Little information is available in literature on Cd uptake by crops from either phosphate rock (PR) or partially acidulated PR (PAPR). The purpose of this greenhouse experiment was to study the effect of acidulation of two PRs having high Cd content
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff2d254c8df6401f1890d299cc5c9700
https://doi.org/10.1023/a:1004323715299
https://doi.org/10.1023/a:1004323715299
Publikováno v:
Soil Science Society of America Journal. 60:1173-1177
Quantitative estimation of the enhancement effect of water-soluble P on P availability from phosphate rock (PR) has not been reported. The objective of this study was to use radioactive 32 P as a tracer to distinguish P availability from soil, PR, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9158ceb9c16f3d81ba893c8178a500cc
https://doi.org/10.2136/sssaj1996.03615995006000040031x
https://doi.org/10.2136/sssaj1996.03615995006000040031x
Publikováno v:
Nutrient Cycling in Agroecosystems, 47(1), 7-18
Scopus-Elsevier
Nutrient Cycling in Agroecosystems 47 (1997) 1
Scopus-Elsevier
Nutrient Cycling in Agroecosystems 47 (1997) 1
The iron oxide impregnated filter paper test (Pi test) is a recently developed soil test for phosphorus (P) in which the FeO paper acts as an infinite sink for P mobilized in a soil solution. Several papers have been published evaluating the effectiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f3002809d4f57689f316b7824de9eae
https://doi.org/10.1007/bf01985714
https://doi.org/10.1007/bf01985714
Publikováno v:
Communications in Soil Science and Plant Analysis. 26:3133-3144
The effect of liming on the agronomic effectiveness of three phosphate rocks (PRs) Pesca and Huila from Colombia and Sechura from Peru as compared with TSP was evaluated in a greenhouse experiment for an Al‐tolerant soybean cultivar grown on an aci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed187198bda702e08357ae7b10bad3cc
https://doi.org/10.1080/00103629509369515
https://doi.org/10.1080/00103629509369515
Publikováno v:
Soil Science Society of America Journal. 59:1762-1767
A greenhouse experiment was conducted to study the influence of Fe and Al oxide in phosphate rocks (PR) on partially acidulated phosphate rock (PAPR) effectiveness and to evaluate compaction of PR with soluble phosphates as an alternate method of uti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e57025dfe5b75226a8924d6eb2ffb51a
https://doi.org/10.2136/sssaj1995.03615995005900060037x
https://doi.org/10.2136/sssaj1995.03615995005900060037x
Autor:
R. G. Menon, S. H. Chien
Publikováno v:
Fertilizer Research. 41:227-234
Phosphorus (P) is critically needed to improve soil fertility for sustainable crop production in large areas of developing countries. In recent years, phosphate rock (PR) for direct application has been tested in tropical acid soils as a potential al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::077b5d3bde31eabde2df1fcb75028378
https://doi.org/10.1007/bf00748312
https://doi.org/10.1007/bf00748312
Autor:
R. G. Menon, S. H. Chien
Publikováno v:
Fertilizer Research. 41:197-209
Phosphorus (P) is critically needed to improve the soil fertility for crop production in large areas of developing countries. The high cost of conventional, water-soluble P fertilizers constrains their use by resource-poor farmers. Finely ground phos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::221411030435d8b313144f75b850bdaa
https://doi.org/10.1007/bf00748309
https://doi.org/10.1007/bf00748309
Autor:
R. G. Menon, S. H. Chien
Publikováno v:
Fertilizer Research. 41:179-187
Traditional soil tests for phosphorus (P) were developed to arrive at fertilizer recommendations when water-soluble P fertilizers have been used. When slowly water-soluble fertilizers such as phosphate rock (PR) have been used, soil tests using acidi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03bc5ae4354b54cde2991f9cbca24e4f
https://doi.org/10.1007/bf00748307
https://doi.org/10.1007/bf00748307