BEIJING - Advanced agricultural technology has become a decisive force in boosting the country's grain production, which is threatened by the shrinkage of arable land and more frequent natural disasters.

A worker performs maintenance on a camera that is part of the farmland video monitoring system at the 856 Farm in Heilongjiang province in September. The system can collect real-time information about the fields. [Photo/Xinhua]

The country's annual grain output has surpassed 500 million tons since 2007 and will rise 2.9 percent year-on-year to 546 million tons this year, the seventh consecutive year of domestic grain output's growth.

"China has never had such great harvests before," Minister of Agriculture Han Changfu said.

"The use of technology has determined the country's grain harvest in recent years," he said.

Production had been more diversified this year in more than 96 percent of the country's total grain-growing areas, Ministry of Agriculture figures showed.

In addition, the average harvest of the country's 4,380 high-yield fields is 9.8 tons per hectare, compared with the 5-ton national average.

The central government plans to boost national annual grain output to more than 550 million tons by 2020. That means more advanced agricultural technologies must be adopted.

"More high-yield fields that are resistant to drought and floods will be planted over the next five years," Han said.

Han highlighted concerns that increasing farmland and water shortages, and serious environmental pollution, are expected to pose great challenges to China's agriculture over the next five years.

Analysts said the country still has great potential to increase the input of agricultural technology to advance grain production.

"The technological input still lags compared with input in other fields, such as industry," said Wu Jingxue, director of the Industrial Economy Research Center at the Chinese Academy of Agricultural Sciences.