The agricultural scene in Haryana, dominated by paddy-wheat rotation, is causing degradation to soil fertility and fall in the underground water level. This was stated in the economic survey tabled in the state assembly here today. It said the area under wheat and paddy crops crossed over 53 per cent of the total cultivated area in the state in 2007-08. "Though, efforts have been made to break the dominance of the wheat-paddy rotation, no significant achievement has been made in this regard so far,' the survey said. The report said area under commercial crops such as sugarcane, cotton and oilseeds fluctuated every year. The area under cotton fell by 9 per cent in 2007-08 compared to the previous year. The survey, however, added that wheat and paddy crops played a major role in pushing up agricultural production in the state. The production of rice was likely to be 36 lakh tonne in 2007-08 and that of wheat 105 lakh tonne, it said. The survey also noted farmers' preference for high-yielding varieties of various crops and the consequent increase in the use of chemical fertilisers. The consumption of pesticides, however, showed a decline to 4,000 tonne in 2007-08 from 4,600 tonne in 2006-07. Though agriculture sector continues to occupy a significant position in the state's economy, its share in its GDP is steadily declining. The composition of GDP at constant (1999-2000) prices revealed that share of primary sector, which included agriculture and allied sectors, had gone to 22 per cent in 2006-07 from 32 per cent in 1999-2000, the report said. The share of manufacturing sector in the GDP had gone up to 30 per cent in 2006-07 from 29 per cent in 1999-2000. Tertiary sector, which was a combination of different services like trade, transport, banking, public administration, education, health and the likes, also witnessed increase in its share in the GDP. Its share rose from 13 per cent in 1999-2000 to 17 per cent in 2006-07. The per capita income in Haryana at current prices was estimated at Rs 49,038 in 2006-07 as against Rs 41,988 in 2005-06 showing an increase of 17 per cent during the current fiscal. The revenue receipts of the state government, according to the survey, got maximum contribution from sales tax (Rs 7,832 crore or 58 per cent of the total receipts), followed by Rs 1,780 crore from stamp fee and property registration charges, Rs 1,343 crore from the state's share in central taxes, Rs 1,320 crore from state excise and the rest from other taxes and duties.