Class information for:
Level 1: QUEFTS//NITRATE LEACHING//LEAF COLOR CHART

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
12613 893 38.7 51%


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
974 2             AGRONOMY JOURNAL//SOIL SCIENCE//COVER CROPS 10652
12613 1                   QUEFTS//NITRATE LEACHING//LEAF COLOR CHART 893

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 QUEFTS authKW 318251 1% 85% 11
2 NITRATE LEACHING authKW 236835 8% 10% 69
3 LEAF COLOR CHART authKW 218830 1% 80% 8
4 LEAF COLOUR CHART authKW 218830 1% 80% 8
5 INDIGENOUS NUTRIENT SUPPLY authKW 209428 1% 88% 7
6 OURCES ENVIRONM FOOD SECUR address 199779 3% 19% 30
7 SITE SPECIFIC NUTRIENT MANAGEMENT authKW 191462 2% 40% 14
8 INT PLANT NUTR IPNI CHINA PROGRAM address 170963 1% 100% 5
9 SOIL SCI FERTILIZER address 162909 1% 53% 9
10 NLEAP authKW 152308 1% 64% 7

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 27366 33% 0% 295
2 Agronomy 17512 37% 0% 332
3 Agriculture, Multidisciplinary 4823 16% 0% 139
4 Environmental Sciences 1427 20% 0% 183
5 Water Resources 1051 10% 0% 87
6 Ecology 648 11% 0% 94
7 Plant Sciences 489 12% 0% 104
8 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 102 2% 0% 14
9 Engineering, Environmental 77 3% 0% 26
10 Agricultural Engineering 63 1% 0% 11

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 OURCES ENVIRONM FOOD SECUR 199779 3% 19% 30
2 INT PLANT NUTR IPNI CHINA PROGRAM 170963 1% 100% 5
3 SOIL SCI FERTILIZER 162909 1% 53% 9
4 SOIL PLANT NUTRIENT UNIT 138305 2% 19% 21
5 PLANT NUTR AGR OURCES 109415 0% 80% 4
6 PLANT NUTR FERTILIZER 103940 2% 20% 15
7 DEP PLANT NUTR 102572 1% 50% 6
8 AGR OURCES REG PLANNING 100815 6% 5% 54
9 OURCES ENVIRONM SCI 87566 11% 3% 96
10 OURCES ENVIRON SCI 78151 0% 57% 4

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 NUTRIENT CYCLING IN AGROECOSYSTEMS 93431 7% 4% 66
2 FIELD CROPS RESEARCH 52900 9% 2% 82
3 PEDOSPHERE 41628 4% 3% 38
4 AGRICULTURE ECOSYSTEMS & ENVIRONMENT 13224 5% 1% 47
5 JOURNAL OF SOIL AND WATER CONSERVATION 11510 3% 1% 29
6 AGRICULTURAL WATER MANAGEMENT 9276 4% 1% 33
7 JOURNAL OF INTEGRATIVE AGRICULTURE 8201 2% 1% 18
8 AGRONOMY JOURNAL 7844 5% 1% 41
9 FERTILIZER RESEARCH 7354 2% 1% 15
10 COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 5045 4% 0% 32

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 QUEFTS 318251 1% 85% 11 Search QUEFTS Search QUEFTS
2 NITRATE LEACHING 236835 8% 10% 69 Search NITRATE+LEACHING Search NITRATE+LEACHING
3 LEAF COLOR CHART 218830 1% 80% 8 Search LEAF+COLOR+CHART Search LEAF+COLOR+CHART
4 LEAF COLOUR CHART 218830 1% 80% 8 Search LEAF+COLOUR+CHART Search LEAF+COLOUR+CHART
5 INDIGENOUS NUTRIENT SUPPLY 209428 1% 88% 7 Search INDIGENOUS+NUTRIENT+SUPPLY Search INDIGENOUS+NUTRIENT+SUPPLY
6 SITE SPECIFIC NUTRIENT MANAGEMENT 191462 2% 40% 14 Search SITE+SPECIFIC+NUTRIENT+MANAGEMENT Search SITE+SPECIFIC+NUTRIENT+MANAGEMENT
7 NLEAP 152308 1% 64% 7 Search NLEAP Search NLEAP
8 APPARENT K BALANCE 136771 0% 100% 4 Search APPARENT+K+BALANCE Search APPARENT+K+BALANCE
9 CROP NUTRIENT REQUIREMENTS 136771 0% 100% 4 Search CROP+NUTRIENT+REQUIREMENTS Search CROP+NUTRIENT+REQUIREMENTS
10 NITROGEN USE EFFICIENCY 121878 6% 7% 52 Search NITROGEN+USE+EFFICIENCY Search NITROGEN+USE+EFFICIENCY

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 HOFMEIER, M , ROELCKE, M , HAN, Y , LAN, T , BERGMANN, H , BOHM, D , CAI, ZC , NIEDER, R , (2015) NITROGEN MANAGEMENT IN A RICE-WHEAT SYSTEM IN THE TAIHU REGION: RECOMMENDATIONS BASED ON FIELD EXPERIMENTS AND SURVEYS.AGRICULTURE ECOSYSTEMS & ENVIRONMENT. VOL. 209. ISSUE . P. 60 -73 39 60% 4
2 XU, XP , HE, P , QIU, SJ , PAMPOLINO, MF , ZHAO, SC , JOHNSTON, AM , ZHOU, W , (2014) ESTIMATING A NEW APPROACH OF FERTILIZER RECOMMENDATION ACROSS SMALLHOLDER FARMS IN CHINA.FIELD CROPS RESEARCH. VOL. 163. ISSUE . P. 10-17 27 87% 2
3 CUI, ZL , DOU, ZX , CHEN, XP , JU, XT , ZHANG, FS , (2014) MANAGING AGRICULTURAL NUTRIENTS FOR FOOD SECURITY IN CHINA: PAST, PRESENT, AND FUTURE.AGRONOMY JOURNAL. VOL. 106. ISSUE 1. P. 191-198 33 59% 7
4 XU, XP , XIE, JG , HOU, YP , HE, P , PAMPOLINO, MF , ZHAO, SC , QIU, SJ , JOHNSTON, AM , ZHOU, W , (2015) ESTIMATING NUTRIENT UPTAKE REQUIREMENTS FOR RICE IN CHINA.FIELD CROPS RESEARCH. VOL. 180. ISSUE . P. 37 -45 25 78% 2
5 XU, XP , HE, P , PAMPOLINO, MF , JOHNSTON, AM , QIU, SJ , ZHAO, SC , CHUAN, LM , ZHOU, W , (2014) FERTILIZER RECOMMENDATION FOR MAIZE IN CHINA BASED ON YIELD RESPONSE AND AGRONOMIC EFFICIENCY.FIELD CROPS RESEARCH. VOL. 157. ISSUE . P. 27-34 19 95% 6
6 XU, XP , LIU, XY , HE, P , JOHNSTON, AM , ZHAO, SC , QIU, SJ , ZHOU, W , (2015) YIELD GAP, INDIGENOUS NUTRIENT SUPPLY AND NUTRIENT USE EFFICIENCY FOR MAIZE IN CHINA.PLOS ONE. VOL. 10. ISSUE 10. P. - 22 76% 0
7 JU, XT , CHRISTIE, P , (2011) CALCULATION OF THEORETICAL NITROGEN RATE FOR SIMPLE NITROGEN RECOMMENDATIONS IN INTENSIVE CROPPING SYSTEMS: A CASE STUDY ON THE NORTH CHINA PLAIN.FIELD CROPS RESEARCH. VOL. 124. ISSUE 3. P. 450 -458 21 72% 20
8 XU, XP , HE, P , ZHOU, W , JOHNSTON, AM , PAMPOLINO, MF , ZHANG, JJ , (2017) SPATIAL VARIATION OF ATTAINABLE YIELD AND FERTILIZER REQUIREMENTS FOR MAIZE AT THE REGIONAL SCALE IN CHINA.FIELD CROPS RESEARCH. VOL. 203. ISSUE . P. 8 -15 22 63% 0
9 YANG, XL , LU, YL , TONG, YA , YIN, XF , (2015) A 5-YEAR LYSIMETER MONITORING OF NITRATE LEACHING FROM WHEAT-MAIZE ROTATION SYSTEM: COMPARISON BETWEEN OPTIMUM N FERTILIZATION AND CONVENTIONAL FARMER N FERTILIZATION.AGRICULTURE ECOSYSTEMS & ENVIRONMENT. VOL. 199. ISSUE . P. 34 -42 20 65% 6
10 CHE, SG , ZHAO, BQ , LI, YT , YUAN, L , LI, W , LIN, ZA , HU, SW , SHEN, B , (2015) REVIEW GRAIN YIELD AND NITROGEN USE EFFICIENCY IN RICE PRODUCTION REGIONS IN CHINA.JOURNAL OF INTEGRATIVE AGRICULTURE. VOL. 14. ISSUE 12. P. 2456 -2466 19 70% 2

Classes with closest relation at Level 1


Rank Class id link
1 14596 SUSTAINABLE YIELD INDEX//FARMYARD MANURE//LONG TERM FERTILIZATION
2 8512 CHLOROPHYLL METER//SPAD 502//SPAD
3 13526 JAPANESE JOURNAL OF CROP SCIENCE//INFERIOR SPIKELETS//GRAIN FILLING
4 11811 PEAK PHOSPHORUS//NANI//SUBSTANCE FLOW ANALYSIS
5 6885 AMMONIA VOLATILIZATION//FERTILIZER RESEARCH//UREASE INHIBITOR
6 21963 SESBANIA ROSTRATA//STEM NODULE//AESCHYNOMENE AFRASPERA
7 18861 ADDED N INTERACTION//N 15 LABELLED FERTILIZER//FERTILIZER N UPTAKE
8 18487 CONTROLLED RELEASE FERTILIZER//SLOW RELEASE FERTILIZER//SLOW RELEASE FERTILIZERS
9 23317 RICE BEAN//GRAIN HARVEST INDEX//SHOOT DRY WEIGHT
10 9195 PLASTIC FILM MULCHING//AGRICULTURAL WATER MANAGEMENT//WATER USE EFFICIENCY

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