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Prospects and challenges in utilization of indigenous rocks and minerals as source of potassium in farming

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Title Prospects and challenges in utilization of indigenous rocks and minerals as source of potassium in farming
Not Available
 
Creator A.O. Shirale
B.P. Meena
Priya P. Gurav
Sanjay Srivastava
A. K. Biswas
J. K. Thakur
J. Somasundaram
A.K. Patra
A. Subba Rao
 
Subject feldspar; glauconite; indigenous K minerals; K uptake; mica; nepheline; potassium; potassium mining
 
Description Not Available
Potassium (K) is one of the essential nutrients required by crops in large
quantities; however, its use in agriculture by farmers is less than required
in developing countries. This neglect has led to excess mining of K in soils
by crop plants and has resulted in a negative balance of K in soils. This
loss necessitates the need of more use of potassium fertilizers in agriculture.
Rocks and minerals offer a potential fertilizer to utilize in agriculture
as source of K. The crop trials revealed that feldspar, mica, glauconite,
nepheline and shoenite are good sources of K for crops, especially in
highly weathered acid soils. However, some researchers have reported no
agronomic benefit of feldspar or granite rock application to crops. Overall
the size modification, acidulation, microbial inoculants and preparation of
K-enriched compost are the effective techniques to utilize K-bearing rocks
and minerals. Very limited information is available on these aspects. Thus,
in this review, an attempt has been to consolidate up-to-date information
of indigenous rocks and minerals as possibilities for alternate sources of K
for crop plants. Moreover, this area of research needs attention to utilize
indigenous K sources, which can aid to limit the import and cost, of the
establishment of potash fertilizer-based industries in developing countries.
Not Available
 
Date 2020-05-14T09:12:42Z
2020-05-14T09:12:42Z
2019-09-05
 
Type Research Paper
 
Identifier A.O. Shirale, B.P. Meena, P.P. Gurav, S. Srivastava, A.K. Biswas, J.K. Thakur, J.Somasundaram, A.K.Patra & A. Subba Rao (2019) Prospects and challenges in utilization of indigenous rocks and minerals as source of potassium in farming, Journal of Plant Nutrition, 42:19, 2682-2701, DOI: 10.1080/01904167.2019.1659353
0190-4167
http://krishi.icar.gov.in/jspui/handle/123456789/35626
 
Language English
 
Relation Not Available;
 
Publisher Taylor and Francis