Research on water conservaton techniques in drought soil of walnut planted in hilly area of Longdong
In order to solve the problem of walnut in Longdong hilly area for late fructification,low yield and poor quality,our project team chose 3-year-old walnut young trees whose growth situations were basically the same as material.The experiments of grass and mulching coverage were carried out from April to October in 2013 and 2014,in which the soil moisture content and young shoot growth were measured regularly.The results showed that:the covering grass can improve the soil moisture content for 12.70% than the contrast,and mulching can improve 4.68%;through the survey of young shoot growth,the annual shoot growth increased by 18.42% on awerage by grass coverage and 9.01% by mulching coverage.Therefore,the impact of covering grass on the soil moisture content and young shoot growth is the largest.
hilly area of Longdongwalnutdrought-resistantmoisture conservation