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Tuesday, June 28, 2022

Top agricultural scientists body rejects zero budget natural farming

This comes even as Prime Minister Narendra Modi, addressing the 14th Conference of Parties to the UN Convention to Combat Desertification on Monday, mentioned that “we are focusing on ZBNF”.

Written by Harish Damodaran , Parthasarathi Biswas | New Delhi, Pune |
Updated: September 10, 2019 11:10:17 am
Govt pushed for zero budget farming, top scientists question Top agricultural scientists have hit out at ZBNF, calling it an “unproven” technology. (Express)

India’s premier academic body of agricultural scientists has hit out at Zero Budget Natural Farming (ZBNF), terming it as an “unproven” technology bringing no incremental value gain to either farmers or consumers.

“The government should not needlessly invest capital and human resources towards promoting ZBNF. We have given our recommendations in writing to the Prime Minister and it reflects the view held by the scientific community,” said Panjab Singh, president of the National Academy of Agricultural Sciences (NAAS).

This comes even as Prime Minister Narendra Modi, addressing the 14th Conference of Parties to the UN Convention to Combat Desertification on Monday, mentioned that “we are focusing on ZBNF”. The Finance Minister Nirmala Sitharaman’s Union Budget speech, too, had talked of the need to “go back to basics” and “replicate this innovative model (that) can help in doubling our farmers’ income”.

The New Delhi-based NAAS – a farm scientists’ think tank with over 650 fellows and 15 regional chapters across India – had organised a day-long “brainstorming session” on ZBNF last month. It was attended, among others, by the Director-General of the Indian Council of Agricultural Research (ICAR) Trilochan Mohapatra and NITI Aayog member Ramesh Chand.

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“In all, there were about 75 experts that included scientists, policymakers, progressive farmers, NGOs and fertiliser, seed and crop protection chemical industry representatives. We reviewed the protocols and claims of ZBNF and concluded that there is no verifiable data or authenticated results from any experiment for it to be considered a feasible technological option. We had invited Subhash Palekar (the man behind ZBNF) as well, but he did not come,” claimed Singh, who is also a former ICAR Director-General.

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ZBNF’s basic concept is that over 98 per cent of the nutrients required by crops for photosynthesis – carbon dioxide, nitrogen, water and solar energy – are already supplied “free” from the air, rains and sun. Only the remaining 1.5-2 per cent nutrients need to be taken from the soil and converted from “non-available” to “available” form (for intake by the roots) through the action of microorganisms.

To enable the microorganisms do their jobs, farmers must apply ‘Jiwamrita’ (microbial culture) and ‘Bijamrita’ (seed treatment solution), besides ‘Mulching’ (covering plants with a layer of dried straw or fallen leaves) and ‘Waaphasa’ (giving water outside the plant’s canopy) to maintain the right soil temperature-moisture-air balance. For insect and pest management, ZBNF recommends use of ‘Agniastra’, ‘Brahmastra’ and ‘Neemastra’, which, like ‘Jiwamrita’ and ‘Bijamrita’, are concoctions based mainly on urine and dung from desi cows. Since these also do not have to be purchased, it makes farming practically “zero-budget”.

Critics, however, note that plant growth and crop yields require nitrogen, which is also a major component of amino acids that are the building blocks of proteins. “78 per cent of air is nitrogen, but it is not freely available to plants. Being non-reactive, atmospheric nitrogen has to be fixed into a plant-usable form such as ammonia or urea. He (Palekar) is further saying that ZBNF is effective only if dung and urine from black-coloured Kapila cows is used and farmers sow traditional varieties/landraces. It means that all the high-yielding varieties and hybrids developed by us, which have trebled India’s rice production to 116 million tonnes (mt) and increased it more than eight times to 102 mt for wheat in the last 50 years, are useless,” remarked a top ICAR scientist, who didn’t wish to be identified.

But according to Palekar, ZBNF is “seed-agnostic” and can be used for desi, hybrid or even genetically modified crops. “NAAS has no expertise to validate my method of farming. They have neither spoken to me nor the farmers who are practicing it. The academy should also have taken into consideration my schedule before calling me. Farmers organise workshops that I cannot cancel them just to attend this (NAAS) meeting,” he added.

Meanwhile, the ICAR has appointed a committee under Praveen Rao Velchala, vice chancellor of the Professor Jayashankar Telangana State Agricultural University to study ZBNF’s viability. “We are examining if there is any science behind it and its strengths and weaknesses, including vis-à-vis normal organic farming. Currently, experiments in growing crops using ZBNF are taking place in five research station locations and we are also going to the fields of farmers who have supposedly adopted this technique. All this can be confirmed through analysis of soil data and fertility status,” Velchala told The Indian Express.

The committee, constituted in May, has had two meetings so far, while the five trial locations are Modipuram (Uttar Pradesh), Pantnagar (Uttarakhand), Kurukshetra (Haryana), Ludhiana (Punjab) and Palampur (Himachal Pradesh). At the Indian Institute of Farming Systems Research in Modipuram, ZBNF experiments have already been conducted for 2017-18 (wheat crop) and 2018-19 (paddy and wheat). “We are now doing our second season for paddy. Nothing conclusive has emerged, but meeting crop nutrient demand through this technique seems an issue,” stated N. Ravisankar, principal scientist at the ICAR institute.

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