Citations per year, relative to S. P. Trehan S. P. Trehan (= 1×)
peers
Gilles Moreau
Countries citing papers authored by S. P. Trehan
Since
Specialization
Citations
This map shows the geographic impact of S. P. Trehan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by S. P. Trehan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites S. P. Trehan more than expected).
This network shows the impact of papers produced by S. P. Trehan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by S. P. Trehan. The network helps show where S. P. Trehan may publish in the future.
Co-authorship network of co-authors of S. P. Trehan
This figure shows the co-authorship network connecting the top 25 collaborators of S. P. Trehan.
A scholar is included among the top collaborators of S. P. Trehan based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with S. P. Trehan. S. P. Trehan is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Tiwari, Jagesh Kumar, S. P. Trehan, Sundaresha Siddappa, et al.. (2014). GENE EXPRESSION ANALYSIS: INDICATORS OF NITROGEN USE EFFICIENCY IN POTATO CULTIVARS. Potato Journal/Journal of the Indian Potato Association. 41(2).2 indexed citations
3.
Kumar, Manoj, et al.. (2014). Distribution of different forms of potassium in potato growing soils of Jalandhar district of Punjab.. 10(1). 175–179.1 indexed citations
4.
Trehan, S. P., et al.. (2013). NUTRIENT EFFICIENCY OF DIFFERENT CROP SPECIES AND POTATO VARIETIES - IN RETROSPECT AND PROSPECT. Potato Journal/Journal of the Indian Potato Association. 40(1).19 indexed citations
5.
Trehan, S. P., et al.. (2013). EFFECT OF NITROGEN AND VARIETIES OF POTATO ON YIELD AND AGRONOMIC N USE EFFICIENCY IN NORTH-WESTERN PLAINS OF INDIA. Potato Journal/Journal of the Indian Potato Association. 40(1). 55–59.3 indexed citations
6.
Kumar, Manoj & S. P. Trehan. (2012). INFLUENCE OF POTATO CULTIVARS AND N LEVELS ON CONTRIBUTION OF ORGANIC AMENDMENTS TO N NUTRITION. Potato Journal/Journal of the Indian Potato Association. 39(2).4 indexed citations
7.
Sood, Meenakshi, et al.. (2012). Influence of irrigation and mulch on growth, yield and economics of potato. Annals of Horticulture. 5(1). 41–46.2 indexed citations
8.
Kumar, Manoj, et al.. (2011). Integrated use of FYM and inorganic sources of nutrients in potato-radish crop sequence. Vegetable Science. 38(1). 44–48.1 indexed citations
9.
Trehan, S. P., et al.. (2010). Effect of Organic and Inorganic Sources of Phosphorus and Potassium on their Different Fractions under Potato-Radish Cropping Sequence in a Brown Hill Soil. Journal of the Indian Society of Soil Science. 58(4). 388–393.7 indexed citations
10.
Trehan, S. P.. (2009). Mechanism of high nitrogen efficiency in potato cultivars.. Advances in Horticultural Science. 23(3). 179–184.3 indexed citations
11.
Kumar, Manoj, S. P. Trehan, Sudhir Kumar Singh, & S. N. Singh. (2006). GROWTH-PERIOD SPECIFIC NITROGEN REQUIREMENT OF POTATO IN THE INDO-GANGETIC PLAINS OF BIHAR. Potato Journal/Journal of the Indian Potato Association. 33.1 indexed citations
12.
Trehan, S. P.. (2005). COMPARATIVE EFFICIENCY OF TEN POTATO CULTIVARS TO USE NITROGEN FROM GREEN MANURED SOIL. Potato Journal/Journal of the Indian Potato Association. 32.1 indexed citations
13.
Trehan, S. P.. (2005). NUTRIENT MANAGEMENT BY EXPLOITING GENETIC DIVERSITY OF POTATO - A REVIEW. Potato Journal/Journal of the Indian Potato Association. 32.12 indexed citations
Trehan, S. P.. (1996). Contribution of Properties of Ustochrept Soil to Potato Yield. Journal of the Indian Society of Soil Science. 44(3). 528–530.2 indexed citations
18.
Trehan, S. P. & J. S. Grewal. (1995). Response to Zinc, Copper and Iron and their Critical Levels for Potato. Journal of the Indian Society of Soil Science. 43(1). 89–91.3 indexed citations
19.
Trehan, S. P., et al.. (1984). Critical Limits of Zinc for Potato in Alluvial Soils under Pot Culture and Field Conditions. Journal of the Indian Society of Soil Science. 32(1). 191–193.2 indexed citations
20.
Trehan, S. P. & J. S. Grewal. (1983). Available Micronutrients Status of Alluvial and Hill Soils as Influenced by Intensive Cropping and Manuring. Journal of the Indian Society of Soil Science. 31(2). 343–346.1 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.