Class information for:
Level 1: PHOSPHATE ROCK//FERTILIZER RESEARCH//PARTIALLY ACIDULATED PHOSPHATE ROCK

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
13624 824 26.4 32%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
3 4 PLANT SCIENCES//AGRONOMY//FOOD SCIENCE & TECHNOLOGY 1882812
40 3       AGRONOMY//SOIL SCIENCE//AGRICULTURE, MULTIDISCIPLINARY 100292
325 2             JOURNAL OF PLANT NUTRITION//SOIL SCIENCE//COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 18184
13624 1                   PHOSPHATE ROCK//FERTILIZER RESEARCH//PARTIALLY ACIDULATED PHOSPHATE ROCK 824

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PHOSPHATE ROCK authKW 907768 9% 32% 77
2 FERTILIZER RESEARCH journal 789266 18% 14% 149
3 PARTIALLY ACIDULATED PHOSPHATE ROCK authKW 527139 3% 68% 21
4 AGRONOMIC EFFECTIVENESS authKW 490444 2% 88% 15
5 ROCK PHOSPHATE authKW 221047 5% 16% 38
6 PHOSPHATE ROCK DISSOLUTION authKW 201746 1% 78% 7
7 PARTIAL ACIDULATION authKW 190572 1% 86% 6
8 RELATIVE EFFECTIVENESS authKW 189705 2% 32% 16
9 TRIPLE SUPERPHOSPHATE authKW 184617 2% 29% 17
10 RESIDUAL VALUE authKW 166737 1% 38% 12

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Soil Science 68045 54% 0% 445
2 Agriculture, Multidisciplinary 9838 23% 0% 189
3 Agronomy 4828 21% 0% 170
4 Plant Sciences 1159 18% 0% 145
5 Chemistry, Analytical 312 10% 0% 80
6 METALLURGY & MINING 31 0% 0% 2
7 Horticulture 28 1% 0% 10
8 Chemistry, Applied 17 2% 0% 18
9 Agricultural Engineering 10 1% 0% 5
10 Agriculture, Dairy & Animal Science 8 1% 0% 10

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 SETOR EXPT BALSAS 74112 0% 100% 2
2 UPRAWY NAWOZENIA GLEBOZNAWSTWA 63516 1% 29% 6
3 AGR ENGN SOILS 37056 0% 100% 1
4 AGR OURCE ECON MKT 37056 0% 100% 1
5 ALL INDIA COORDINATED PROJECT MICROBIAL DECOM 37056 0% 100% 1
6 BADAWCZY PU LAWACH 37056 0% 100% 1
7 BADAWCZY PULAWACH 37056 0% 100% 1
8 BAIRNSDALE AGR 37056 0% 100% 1
9 BUSINESS INFORMAT DEV TEAM 37056 0% 100% 1
10 CELL BIOL SCI TECHNOL 37056 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 FERTILIZER RESEARCH 789266 18% 14% 149
2 NUTRIENT CYCLING IN AGROECOSYSTEMS 65281 6% 3% 53
3 COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 28667 9% 1% 73
4 NEW ZEALAND JOURNAL OF EXPERIMENTAL AGRICULTURE 22576 2% 3% 18
5 NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH 20449 4% 2% 34
6 AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE 17164 5% 1% 42
7 AUSTRALIAN JOURNAL OF SOIL RESEARCH 11540 3% 1% 26
8 TROPICAL GRASSLANDS 6043 2% 1% 13
9 JOURNAL OF SOIL SCIENCE 5216 1% 1% 11
10 REVISTA BRASILEIRA DE CIENCIA DO SOLO 4722 2% 1% 17

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 PHOSPHATE ROCK 907768 9% 32% 77 Search PHOSPHATE+ROCK Search PHOSPHATE+ROCK
2 PARTIALLY ACIDULATED PHOSPHATE ROCK 527139 3% 68% 21 Search PARTIALLY+ACIDULATED+PHOSPHATE+ROCK Search PARTIALLY+ACIDULATED+PHOSPHATE+ROCK
3 AGRONOMIC EFFECTIVENESS 490444 2% 88% 15 Search AGRONOMIC+EFFECTIVENESS Search AGRONOMIC+EFFECTIVENESS
4 ROCK PHOSPHATE 221047 5% 16% 38 Search ROCK+PHOSPHATE Search ROCK+PHOSPHATE
5 PHOSPHATE ROCK DISSOLUTION 201746 1% 78% 7 Search PHOSPHATE+ROCK+DISSOLUTION Search PHOSPHATE+ROCK+DISSOLUTION
6 PARTIAL ACIDULATION 190572 1% 86% 6 Search PARTIAL+ACIDULATION Search PARTIAL+ACIDULATION
7 RELATIVE EFFECTIVENESS 189705 2% 32% 16 Search RELATIVE+EFFECTIVENESS Search RELATIVE+EFFECTIVENESS
8 TRIPLE SUPERPHOSPHATE 184617 2% 29% 17 Search TRIPLE+SUPERPHOSPHATE Search TRIPLE+SUPERPHOSPHATE
9 RESIDUAL VALUE 166737 1% 38% 12 Search RESIDUAL+VALUE Search RESIDUAL+VALUE
10 RELATIVE AGRONOMIC EFFECTIVENESS 165063 1% 64% 7 Search RELATIVE+AGRONOMIC+EFFECTIVENESS Search RELATIVE+AGRONOMIC+EFFECTIVENESS

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 RAJAN, SSS , WATKINSON, JH , SINCLAIR, AG , (1996) PHOSPHATE ROCKS FOR DIRECT APPLICATION TO SOILS.ADVANCES IN AGRONOMY, VOL 57. VOL. 57. ISSUE . P. 77 -159 102 65% 127
2 BOLLAND, MDA , LEWIS, DC , GILKES, RJ , HAMILTON, LJ , (1997) REVIEW OF AUSTRALIAN PHOSPHATE ROCK RESEARCH.AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE. VOL. 37. ISSUE 8. P. 845-859 67 83% 14
3 HE, ZL , YAO, H , CALVERT, DV , STOFFELLA, PJ , YANG, XE , CHEN, G , LLOYD, GM , (2005) DISSOLUTION CHARACTERISTICS OF CENTRAL FLORIDA PHOSPHATE ROCK IN AN ACIDIC SANDY SOIL.PLANT AND SOIL. VOL. 273. ISSUE 1-2. P. 157-166 27 90% 8
4 HEDLEY, MJ , BOLAN, NS , (1997) DEVELOPMENTS IN SOME ASPECTS OF REACTIVE PHOSPHATE ROCK RESEARCH AND USE IN NEW ZEALAND.AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE. VOL. 37. ISSUE 8. P. 861 -884 37 80% 5
5 BOLAN, NS , WHITE, RE , HEDLEY, MJ , (1990) A REVIEW OF THE USE OF PHOSPHATE ROCKS AS FERTILIZERS FOR DIRECT APPLICATION IN AUSTRALIA AND NEW-ZEALAND.AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE. VOL. 30. ISSUE 2. P. 297-313 45 79% 57
6 BOLLAND, MDA , GILKES, RJ , BRENNAN, RF , (2001) THE INFLUENCE OF SOIL PROPERTIES ON THE EFFECTIVENESS OF PHOSPHATE ROCK FERTILISERS.AUSTRALIAN JOURNAL OF SOIL RESEARCH. VOL. 39. ISSUE 4. P. 773 -798 29 85% 6
7 CHIEN, SH , PROCHNOW, LI , TU, S , SNYDER, CS , (2011) AGRONOMIC AND ENVIRONMENTAL ASPECTS OF PHOSPHATE FERTILIZERS VARYING IN SOURCE AND SOLUBILITY: AN UPDATE REVIEW.NUTRIENT CYCLING IN AGROECOSYSTEMS. VOL. 89. ISSUE 2. P. 229 -255 37 39% 49
8 PROCHNOW, LI , CHIEN, SH , CARMONA, G , DILLARD, EF , HENAO, J , AUSTIN, ER , (2008) PLANT AVAILABILITY OF PHOSPHORUS IN FOUR SUPERPHOSPHATE FERTILIZERS VARYING IN WATER-INSOLUBLE PHOSPHATE COMPOUNDS.SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. VOL. 72. ISSUE 2. P. 462-470 17 94% 4
9 BABARE, AM , GILKES, RJ , SALE, PWG , (1997) THE EFFECT OF PHOSPHATE BUFFERING CAPACITY AND OTHER SOIL PROPERTIES ON NORTH CAROLINA PHOSPHATE ROCK DISSOLUTION, AVAILABILITY OF DISSOLVED PHOSPHORUS AND RELATIVE AGRONOMIC EFFECTIVENESS.AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE. VOL. 37. ISSUE 8. P. 1037-1049 25 89% 12
10 BABARE, AM , SALE, PWG , FLEMING, N , GARDEN, DL , JOHNSON, D , (1997) THE AGRONOMIC EFFECTIVENESS OF REACTIVE PHOSPHATE ROCKS 5. THE EFFECT OF PARTICLE SIZE OF A MODERATELY REACTIVE PHOSPHATE ROCK.AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE. VOL. 37. ISSUE 8. P. 969 -984 26 87% 4

Classes with closest relation at Level 1


Rank Class id link
1 7378 PHOSPHATE SOLUBILIZATION//PHOSPHATE SOLUBILIZING BACTERIA//ROCK PHOSPHATE
2 187 SOIL SCIENCE//ORGANIC PHOSPHORUS//ORGANIC P
3 27691 NORTH DAKOTA AGRICULTURAL EXPERIMENT STATION BULLETIN//GREEN MANURE MICROSITE//JOURNAL OF FERTILIZER ISSUES
4 1452 CLUSTER ROOTS//PHOSPHORUS DEFICIENCY//PHOSPHORUS EFFICIENCY
5 9992 N S RATIO//ELEMENTAL S//C BONDED S
6 23317 RICE BEAN//GRAIN HARVEST INDEX//SHOOT DRY WEIGHT
7 17646 MEHLICH 3//MEHLICH 1//COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
8 25286 ZEOPONICS//CLINOPTILOLITE ZEOLITE//AVAILABLE NITRATE
9 8409 SOIL ACIDITY//SUBSOIL ACIDITY//LIME REQUIREMENT
10 36491 DECISION CASE//COBB DOUGLASS PRODUCTION FUNCTION//PROTECTED VEGETABLE PRODUCTION

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