this is ppt file

1. The role of science and technology
in agricultural development of
china
Mansingh meena 2008ce10275

2.  The contribution rate of scientific and technological progress
to China’s agriculture has increased from 20 percent in 1949
to 42 percent. China set a target that science and technology
Should contribute up to 63% of the growth of Chinese agriculture
sector by 2020.
 The agricultural S & T have made much progress in
bio-technology, basic research, and the cultivation of plant cells and tissues,
haploid breeding and the research on its application have reached the
world’s advanced level. Bilinear hybrid rice, hybrid corn breeding, and
multi-crop planting technologies featuring intensive cultivation have reached
or approached the world’s advanced level

4. Bio-technology
 GM(genetically modified) crop development –
 In 2004 China ranked fifth in the world in terms of genetically
modified organism (GMO) cultivated acreage. GMO plants
developed or used in China include pest resistant cotton – China’s
largest GMO crop – and tobacco, peanuts, sweet peppers, papayas
and vaccine-carrying tomatoes.
 In 2002, China planted 700,000 hectares of transgenic cotton
(China is the only Asian country that grows GM crop).

6. Fertilizers
 China produced 24 percent of the world's total grain output,
but its use of fertilizer accounted for about 35 percent of total global
consumption. China's grain production had increased more than
eight-fold from the 1960s, while use of nitrogen fertilizers had surged
by about 55 times.
 china using 40 percent more fertilizers than crops needed

7. Use of fertilizers or chemical by china

8. China 35%
Rest of world 65%
World fertilizer consumption

9. pesticides
pesticides covers herbicides, fungicides, and insecticides.
Herbicides and insectisides are the most commonly used of the two
on annual crops.
China is biggest user of pesticides in the world .