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By 2050, India is expected to surpass China as the world's most populated country, with a population of almost 1.7 billion people. To feed this exponentially increasing population, the country must pursue a policy of vertical productivity growth, as the possibilities for additional horizontal expansion of cultivated land are rapidly diminishing. Furthermore, continual cropping depletes soil nutrient resources, necessitating the replenishment of soils with critical major and minor plant nutrients. The country cannot compromise with nutritional supply in order to end "Silent Hunger" and the immoral perpetuation of high concentrations of increasing number of malnourished children and anaemic moms. While the country is intending to restructure its agricultural production system, including R&D, to meet the needs of rising problems, the 2018-19 economic survey established a strong case for the widespread adoption of ‘Zero Budget Natural Farming' (ZBNF) to double farmers' revenue. As a result, crop productivity will remain low, and farmers will not be able to earn enough to double their income and get out of debt with this level of output. Also at the country level, we will not be able to meet the expanding populations food and nutritional demands and hence will fail to meet the sustainable goals of “Zero Hunger and Poverty Elimination” by 2030. Thus, with zero budget natural farming practices we can feed to the India and world, our emphasis is too elaborate all aspects.

A study on potassium dynamics under long term use of variable doses of imbalanced chemical fertilizers and organics in rainfed maize-wheat system was carried out in Typic Ustipsamments of low hill zone of Himachal Pradesh between rabi (2007-08) and kharif (2008) seasons in the ongoing long-term fertilizer experiment at the research farm of CSKHPKV, HAREC, Dhaulakuan. Surface soil (0-15cm) after sixteen cropping cycles was analyzed for different forms of potassium. All the fractions of potassium viz. water soluble-K, exchangeable-K and non exchangeable-K decreased from its initial status in most of the treatments. Treatments receiving K fertilizer (100% NPK) showed increase in water soluble-K and exchangeable-K fraction over the initial status. Application of FYM (Farmyard manure) in both the seasons also increased the content of water soluble-K and exchangeable-K over the initial value. In general application of FYM with chemical fertilizers showed higher content of all the fractions compared to treatments where imbalanced inorganic fertilizers were applied (100 % N and 100 % NP). Maximum decrease in all the fractions of K was recorded in treatment 100 per cent N followed by 100 per cent NP. Use of FYM to both crops has resulted in higher yield in case of wheat crop. Water soluble-K was the important fraction of potassium contributing towards crop yields and total K uptake.

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