Zobrazeno 1 - 10
of 28
pro vyhledávání: '"NAYAN AHMED"'
Autor:
ABHISHEK DAS, NAYAN AHMED, T J PURAKAYASTHA, SUNANDA BISWAS, PRASENJIT RAY, BINDER SINGH, T K DAS, RAJESH KUMAR, ACHAL LAMA
Publikováno v:
The Indian Journal of Agricultural Sciences, Vol 93, Iss 9 (2023)
An attempt was made to study the humic acid (HA) quality and clay humus complex in order to generate valuable information regarding soil carbon (C) and recalcitrant carbon variations under conservation agriculture (CA) practices. It is worthwhile to
Externí odkaz:
https://doaj.org/article/0fa04fe1cfec4a86800661b3fb4dfd9b
Autor:
BHABANI PRASAD MONDAL, RABI NARAYAN SAHOO, NAYAN AHMED, RAJIV KUMAR SINGH, BAPPA DAS, NILIMESH MRIDHA, SHALINI GAKHAR
Publikováno v:
The Indian Journal of Agricultural Sciences, Vol 91, Iss 9 (2021)
Rapid and accurate prediction of soil available S, an important secondary nutrient, is crucial for its site-specific management in a cultivated region. Although traditional chemical analysis of any nutrient is an accurate method, but often costly, ti
Externí odkaz:
https://doaj.org/article/ffb077bd981c455c9ee075ee005879b2
Autor:
RAJENDRA KUMAR YADAV, T J PURAKAYASTHA, NAYAN AHMED, RUMA DAS, BIDISHA CHAKRABARTY, SUNANDA BISWAS, V K SHARMA, POOJA SINGH, DAIZEE TALUKDAR, K K MOURYA, S S WALIA, ROHITASAV SINGH, V K SHUKLA, M S YADAVA, N RAVISANKAR, BASU DEVI YADAV
Publikováno v:
The Indian Journal of Agricultural Sciences, Vol 91, Iss 2 (2021)
The 32 years impact of manuring and fertilization on carbon mineralization in macro- and micro-aggregates in major soil groups of India was studied. Mollisol, Inceptisol, Vertisol, and Alfisol samples were collected (0-15 cm soil depth) from the trea
Externí odkaz:
https://doaj.org/article/78af0c8b1b184d9db9155cf64bdc5399
Autor:
Nadim Sharif, Khalid J Alzahrani, Shamsun Nahar Ahmed, Rubayet Rayhan Opu, Nayan Ahmed, Aeken Talukder, Raju Nunia, Mysha Samiha Chowdhury, Israt Jahan Nodi, Tama Saha, Ming Zhang, Shuvra Kanti Dey
Publikováno v:
PLoS ONE, Vol 16, Iss 11, p e0260287 (2021)
Coronavirus disease 2019 (COVID-19) pandemic has become a major public health issue globally. Preventive health measures against COVID-19 can reduce the health burden significantly by containing the transmission. A few research have been undertaken o
Externí odkaz:
https://doaj.org/article/2e15f7cfd0c445649b7883d5f17578a0
Autor:
Abinash Das, Tapan Jyoti Purakayastha, Nayan Ahmed, Ruma Das, Sunanda Biswas, Yashbir Singh Shivay, Vinay Kumar Sehgal, Khushboo Rani, Ankita Trivedi, Priti Tigga, Jyotirmaya Sahoo, Ranabir Chakraborty, Suman Sen
Publikováno v:
Journal of Soil Science and Plant Nutrition. 23:1003-1018
Publikováno v:
International Journal of Plant & Soil Science. :1257-1270
Phosphorus (P) and potassium (K) are two major nutrients for agricultural productivity and sustainability. The spatial variability maps of soil phosphorus and potassium content in surfacesoils collected through grid sampling technique were developed
Autor:
Partha Sarathi Ghorai, Sunanda Biswas, Tapan Jyoti Purakayastha, Nayan Ahmed, Tapas Kumar Das, Radha Prasanna, Bharat Hanamant Gawade, Kallol Bhattacharyya, Kanchan Sinha, Priya Singh, Sujit Das
Publikováno v:
Soil Use and Management. 39:503-520
Autor:
Supratim Datta, Debarup Das, Tapan Jyoti Purakayastha, N. Ravisankar, Rajesh Kumar, Vivekanand Shukla, M. S. Yadava, Nayan Ahmed, R. K. Singh, S. S. Walia, Ruma Das
Publikováno v:
National Academy Science Letters. 45:39-44
The effect of chemical pre-treatment on identification and semi-quantification of clay minerals by X-ray diffraction (XRD) analysis was studied in soils (0–15 cm) collected from four ongoing long-term (31 years) experiments located at Ludhiana (Inc
Publikováno v:
Communications in Soil Science and Plant Analysis. 52:2373-2387
This study evaluated metal availability under acidic soil conditions and identified the solid phases that govern their solubility using Baker soil test. Free metal ion activity (Mn+) expressed as n...
Autor:
Rajesh Kumar, Vandana Kumari, Samar Chandra Datta, K.M. Manjaiah, Vipin Kumar, Shiva N. Suman, Nayan Ahmed, Ranjan Laik, T. K. Das
Publikováno v:
Current Journal of Applied Science and Technology. :12-22
In the present investigation, different tillage and management practices interventions were assessed to note the changes in the composition of humic substances using Fourier transform infrared (FTIR) techniques, optical density (E4/E6) measurement an