Experimental study on effect of FA Handilong on water saving and production of apple tree in the rural areas in Beijing

The orthogonal experiment was conducted to study the application of FA Handilong, a kind of drought-resistant agent for fruit tree. Its effect on the growth, capability against drought, fruit quality and yields of fruit were investigated. The results show: FA Handilong, could increase its drought-resistant potential of the fruit tree and its yield increased by 4.88%～7.32%; The economic benefit increased by 15654.00～23559.00 yuan per hectare. The average fruit weight could be increased using FA Handilong by 4.2%～8.4%. The fruit quality was also improved. Compared with the condition of full irrigation, the water use efficiency was also improved, and the irrigative water was saved by 487.5 m³ per hectare. The best frequency and time of the application of FA Handilong were discussed.