Balanced nutrient management: Effects on plant zinc
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Kanwar Lal Sahrawat, Suhas Wani, G. Pardhasaradhi. (20/12/2013). Balanced nutrient management: Effects on plant zinc. Journal of SAT Agricultural Research, 11, pp. 1-3.
Abstract
Participatory on-farm research on the diagnosis and
management of nutrient disorders over the last decade by
the International Crops Research Institute for the Semi-
Arid Tropics (ICRISAT) and its partners has established
that multi-nutrient deficiency is the norm rather than an
exception. The results of analysis of a large number of
soil samples from farmers’ fields in the semi-arid tropical
regions of India showed that generally the soils are low in
organic carbon (C), indicating general poor soil health.
Apart from deficiencies of the major nutrients nitrogen
(N) and phosphorus (P), the deficiencies of secondary
nutrient sulfur (S) and micronutrients especially zinc (Zn)
and boron (B) are widespread and indeed revealing. The
results from a large number of on-farm follow-up trials
comparing soil test-based balanced nutrition with
farmers’ inputs showed that balanced plant nutrient
management significantly increases crop productivity
(Sahrawat and Wani 2013) and enhances grain and straw
quality of crops (Sahrawat et al. 2008). Currently...