| Autor: |
Krishna Chaitanya Anantha, Abhijit Sarkar, Sudip Sengupta, Shubhadip Dasgupta, Sushanta Saha |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Soil Science: Fundamentals to Recent Advances ISBN: 9789811609169 |
| DOI: |
10.1007/978-981-16-0917-6_10 |
| Popis: |
The green revolution has driven the world to a concept of food sufficiency, but its aftermath in the form of injudicious chemical application has robbed off the inherent productive capacity of the soils. A large number of nutrient deficiencies are cropping up day by day severely impeding global nutritional security. The current situation emphasizes the vehement need for soil fertility status investigation. Although the researches for individual soil elements using diverse chemical extractants are in vogue for several decades, it faces the major hindrance in terms of cumbersome protocols and humongous labour and time consumption. This results in a substantial delay in the soil testing services and the farmers do not get correct information on the soil fertility status before crop cultivations aggravating the low productivity conundrum. A paradigm shift in the soil elemental extractability research is thus gaining significance steadily. The use of multinutrient soil chemical extractants aims at pulling out a large number of elements at one go into the solution, and thereafter its instrumental characterization is emerging as a potent replacement. It can save quite a lot of time and labour involvement and propel the fertility evaluation process in soil and plant nutrition studies. Accentuated by the advances in the field of instrumental elemental characterization with the involvement of atomic absorption spectrometry (AAS), microwave plasma-atomic emission spectrometry (MP-AES), inductively coupled plasma-optical emission spectrometry (ICP-OES), inductively coupled plasma-mass spectrometry (ICP-MS), ion selective electrodes (for anions), etc. the research is promulgating by leaps and bounds. The ability to extract and detect even the toxic metal constituents of the soil at a single extraction and using the high precision instruments is an additional benefit of the research. This chapter underscores the effort to impart due cognizance to the advanced research protocols of soil elemental extractability to catapult the future of soil–plant nutrition research astutely. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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