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Questions related from Annangi Subba Rao
The most common zinc fertilizer sources are zinc sulphate (ZnSO4.7H2O) with 21-22% Zn and zinc oxide with 50-80% Zn. ZnO is sparingly soluble while zinc sulphate is highly soluble in soil. How to...
09 September 2019 9,433 1 View
A good number of composting methods have been suggested/published in the literature on quick or fast composting. In practical terms, how fast one can generate/produce good quality compost for use...
11 November 2017 8,612 18 View
In India bath rooms in trains are being fitted with biotoilets.I desire to know the working principle of the biotoilet,how the human waste is treated and disposed off.Has it been used for manurial...
10 October 2017 4,399 5 View
Rockphosphates and Phosphate fertilizers manufactured from the former are applied to soil to meet the P requirement of crops.Cadmium present in those P sources may accumulate in soil over time...
08 August 2017 10,062 11 View
We have a variety of organic waste materials available including animal dung,crop residues,household organic waste and food waste etc.There are currently two routes available (apart from...
07 July 2017 3,865 3 View
Many of the soil testing methods are 40-50 or more years old.Several scientists suggested modifications/improvements in those methods over the years.It seems to me that the improvements need to...
04 April 2016 6,312 7 View
Organic materials of plant or animal origin on incorporation in soil, decompose in soil due to microbial action and at least 8-10% remain un-decomposed and transform into humus.Overtime soils may...
03 March 2016 4,783 9 View
The neutral normal ammonium acetate method which essentially extracts the water soluble and exchangeable K in soil is the most common method to estimate plant- available soil K in soil testing...
01 January 2016 8,465 36 View
Soil quality is equated with soil health and same minimum data set is used for both. Soil health is now being linked to plant health and in turn to animal/human health. However there are no...
11 November 2015 2,502 10 View
Soil and plant health is interrelated with animal/human health. Whatever pollutants and contaminants added incidentally to soil may affect the plant -animal/human system.Advanced machinery and...
10 October 2015 7,616 11 View
The acid soils may constitute around 30% of world area especially large areas in the South America,Africa,Southeast Asia,and Australia .In India 90 million ha of geographical area has pH
10 October 2015 4,924 44 View
Organic farming is widely appreciated and is also acclaimed as healthy and environmentally safe and sound.Governments have also been encouraging and providing incentives.But why the area under...
09 September 2015 5,079 3 View
Several nanofertilizers are in developing stage/developed for their use in agriculture.It has been highlighted that the nanofertilizers, because of their nano size can enter into animal and human...
06 June 2015 8,738 1 View
For estimating plant- available N in soil testing laboratories there is no universally accepted method (like Olsen and Brays methods for P).Both biological and chemical methods used for estimating...
01 January 1970 533 6 View
