山茱萸Mocrocarpium officinale (Sied. et Zucc.)Nakai木本药用树种,是山区人民致富的“摇钱树”,多生长在海拔600m以上来水条件差的山沟坡底。山茱萸果实膨大增肉时期,若遇伏天干早就会出现严重落果,影响产量,减少收益。据1987年至1989年三年田间山坡试验证明,连续干旱8～10天或10～15天落果8％～9％,在山茱萸树冠地面盖草试验,落果率可减少 Medicinal tree species of the genus Mocrocarpium officinale (Sied. Et Zucc.) Is a “cash cow” that people in the mountains have become rich in. They grow mostly at the bottom of ravines with poor water conditions at altitudes of 600 m above sea level. Cornus fruit enlargement increased period of meat, in case of ambush dry early there will be a serious fall, affecting the yield and reduce revenue. According to three years of 1987 to 1989 field hillside test proved that continuous drought of 8 to 10 days or 10 to 15 days 8% to 9% drop in dogwood crown ground cover grass test, drop fruit rate can be reduced