Question

Using HYV seeds to obtain productivity

Answer 1

The work of Green Revolution Norman Borlaug was to introduce dwarfing genes into improved varieties and produce these in monocultures without crop rotation or organic amendments. The dwarfed varieties could exploit higher fertilizer and produce larger yields without lodging, i.e. falling under the grain yield. The dwarf varieties are more susceptible to weeds disease and insects and lead to more application of fertilizers and herbicides. The dwarfed varieties also lead to dwarfed root systems. These systems are based on monocultures which can have issues of soil acidification, loss of soil organic matter and reduced soil biological activity. From a dietary standpoint animals and people cannot live on rice alone. While short-term use of HYV system looks favorable just on a yield basis the energy, environment and economic effects are not all positive. Many intensive monocultural systems tend to break down so the short term comparison may not be reflective and accurate of long-term results. In terms of these systems, they require higher inputs which are sources of issues related to them. If the ammoniated fertilizer and pesticide contaminate the water system it could be difficult to assess it from a risk and gain basis. It should be considered that rotations and organic amendment can improve the base soil and offer an alternative to monocultures. Some of the advantages are lower energy input, less detrimental environmental and health issues and favorable economics. The industrialized agricultural model has not been very kind in terms of environment and energy issues.

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Answer 2

Here is the answer my friend

HYV seeds or high yield variety seeds were developed by scientists to improve food supplies and to reduce famine in developing countries like India.HYV seeds or say ‘miracle seeds ’ can produce upto ten times more crops than regular seeds on a some area of land or a farm.

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