摘要:
选择6 年生甜樱桃Cerasus avium 品种红灯Cerasus avium 'Hongdeng' 的试验基地开展覆草试验。覆草栽培与裸土对照交互排列, 小区面积333.5 m2 , 重复3 次, 翌年开始生长调 查。结果表明:覆草栽培可以使樱桃新梢旺长期提前;新梢长度、粗度、百叶质量和叶面积分别比对照提高20.4 %, 30.2 %, 20.5 %和5.3 %;叶绿素质量分数和光合速率分别比对照增加了35.8 %和54.7 %;覆草栽培还能明显增加树体中氮、钾、钙元素的质量分数, 降低铁、镁、锰元素的质量分数;覆草使根量增加, 根位上升。图2 表4 参16
Abstract:
Straw mulch trial was conducted with 6-year-old cultivars Cerasus avium 'Hongdeng' in sweet cherry orchard.As a control , bare soil was reciprocally arranged with covered region for three times in 0.033-hectare testing plots .The results showed that straw mulching could predate vigorous growth of vegetative shoot of cherry . Compared with control , the length , diameter , 100-leave weight , and dimension per leaf of vegetative shoot were increased by 20.4 %, 30.2 %, 20.5 % and 5.3 %, respectively .There had been 35.8 % and 54.7 % increase in the content of chlorophyll and photosynthetic rate .Straw mulching could significantly increase contents of N , K , Ca , and decrease contents of Fe , Mg , Mn in cherry tree .Furthermore , straw mulching increased number of roots , and raised root position .[ Ch , 2 fig .4 tab .16 ref .]
点击查看大图
下载:
