Browsing by Author "Tandon, H.L.S."

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    A district-level analysis of fertiliser consumption in India
    (1986) Tandon, H.L.S.
    A district-level analysis of fertiliser consumption\ha based on data for 346 districts is presented. During 1984-85, the number of districts with a nutrient consumption of 10 kg\ha or less was 95 for N, 214 for P and- 302 for K. Mean farm-level investment in fertilisers varied from Rs 3\ha to Rs 1600\ha among districts with an all-India mean of Rs 228 \ha. Such analyses may be useful in the formulation of area-wise on-target fertiliser promotion programmes.
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    Phosphorus in Indian Agriculture Past, Present and Future
    (1986) Tandon, H.L.S.
    This paper provides some highlights of 30 years of Phosphorus research and usage in India with likely future trends upto the 1990-2000 decade. It is bathed on a more comprehensive report on "Phosphorus Research and Agricultural Production in India" published by The Fertiliser Development and Consultation Organisation.
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    Potential of Improved Application Techniques for Increasing Fertiliser Use Efficiency
    (1986) Tandon, H.L.S.
    Potential of application techniques for increasing fertiliser use efficiency and issues involved in their adoption have been discussed. Examples concern the efficient use of N, P, K, S, Zn, Fe and Mn, nutrients which are of major practical importance. Improved application techniques can bring about yield advantages of 200-1200 Kg grain] ha and are often enough able to cover the total or a large proportion of the money spent on fertilisers. A number of improved techniques have yet to find large-scale application. This is a matter of concern. Two possible reasons are that (i) in our system, a mechanism link is missing which should identify promising techniques and take initatives to see that these are passed on) as usable packages to the farm level and (ii) many times our interest in fertiliser efficiency is philosophical rather than one of affirmative action with the result that initial interest losses momentum after their agronomic potential has been shown. Non-adoption of proven techniques not only robs the farmers of the fruits of using fertiliser efficiently, it also reduce the efficiency of investments in fertiliser research and development. The economic and social cost of improved technologies not finding adoption (in terms of lost production and income) is substantial particularly for a country such as India which is on the doorstep of the 10 million tonne nutrient consumption mark. .Some suggestions have been made to take technique evaluation beyond agronomic testing and to accelerate the adoption of proven techniques.
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    Sulphur Research and Development in Indian Agriculture
    (1986-09) Tandon, H.L.S.
    This paper summarises the salient progress made in the research and developmental aspects of S in Indian agriculture. Deficiencies of S occur in about 90 districts affecting 23-30 m ha. Yield responses of 31 crops to S have been obtained. In general, such responses are significant and profitable. Fertilisers used at present add about 0.4 mt S/year which is 40 per cent of S taken up by crops. There is very little activity in product development, promotion and extension of S. Sulphur Is a master nutrient for oilseed production and deserves greater attention than what it has received so far.