To begin with the President acquainted himself with the state of making use of hot water of a thermal power station in vegetable farming.

Having not completed the project for supplying the hot water of the thermal power plant to the greenhouse, they ensured heat with heavy oil.

After getting familiar with the state, the President told officials that the construction of the greenhouse was aimed at producing vegetables by using the hot water of the thermal power plant.

He earnestly instructed officials to wind up the project at an early date and turn out winter vegetables, saying that if the greenhouse was heated with the water of the thermal power plant as it was 120 degrees centigrade, they could cultivate vegetables without a heavy oil boiler.

Adding that if they wanted to do greenhouse farming, they should do it in a big way, he asked whether there were sites to build more greenhouses.

Listening to their affirmative reply, he remarked that the land of the greenhouse should be sandy soil because water sinks into the soil well and the soil is not hardened.

At a moment, the officials were struck by his words.

Though they had done greenhouse farming for years but did not pay attention to the nature of soil.

Such being the case, though they carpeted the land with humus soil and manure and applied enough chemical fertilizer every year, the salt density of the soil got high and the soil became hard from after one year or two, with the result that the output decreased gradually.

In order to do away with such phenomena, they changed the greenhouse soil, but no avail.

The President gave a scientific solution to the issue of greenhouse soil which even scientists and agro-technicians had not found, thus indicating the way for bringing about a new turn in the greenhouse farming.