Method for cultivating rice in dry land

The invention relates to a method for cultivating rice in dry land. The method specifically comprises the steps of: selecting common rice seeds as a seed source; selecting dry land as cultivation land; selecting a water-retaining agent, the water absorption capacity of which is 200-250 times, as a water absorbing carrier; diluting a conventional chemical fertilizer with water according to a certain ratio to obtain a nutrient solution, and then absorbing the nutrient solution by the water-retaining agent to form a solid nutritional liquid fertilizer. The cultivation process comprises the steps of: firstly digging cultivation trenches in the cultivation land; then applying the solid nutritional liquid fertilizer; and then directly hill-seeding rice seeds on the solid nutritional liquid fertilizer. When a fertilizer is additionally applied to the rice, the fertilizer is diluted into a nutritional liquid first, and then the nutritional liquid is uniformly sprayed to the cultivation trenches. By implementing the method provided by the invention, water and fertilizer are fixed by virtue of a special function of the water-retaining agent and then are slowly released, so that the rice is just as in a water layer although the rice is in the dry land. The common rice seeds are cultivated in the dry land, so that the defect that the rice cannot be planted in a lot of unoccupied dry lands is effectively solved.