Based on the relevant research data collected from 85 strawberry grower households in 6 major producing areas of Beijing,the paper analyzed the irrigation water source,irrigation facilities,irrigation management and application of water and fertilizer integrated technology.The results showed that the pH value of all irrigation water was greater than 7.0,and EC value was mainly 0.5-0.7 mS·cm-1,accounting for 50%.All respondents adopted the water-saving irrigation technology,and usage rate of drip irrigation was the highest,accounting for 92.9%.The key impact factors for irrigation decision-making were soil moisture content(94.1%),weather conditions(63.5%),personal experience(58.8%),soil texture(42.4%),and synchronization with other grower households(3.5%).The average irrigation quantity in substrate culture during the whole strawberry growth period was greater than that in soil cultivation.They were 4 479 m3·hm-2 and 2 070.0 m3·hm-2,respectively.There were various kinds of fertilization equipment,mainly including Venturi fertilizer applicator(40.0%),electric sprayer(28.2%),pressure differential fertilizer pot(21.2%),fertilizer injection pump(17.7%),and water fertilizer integrated machine(11.8%).Finally,this paper put forward some suggestions directing at water-saving facilities,irrigation system and technical training.
Beijingstrawberrywater-saving irrigationinvestigation and survey
维普
万方数据
