摘要
在施用无机肥的基础上,埋草及施用土杂肥和饼肥的施肥方式能明显提高根系的吸收根数量和根生长总量,从根系的分布情况看,埋草促使根系向下延伸,分布在41-80 cm土层内的吸收根占总量的45.4%;而未埋草处理,分布在此土层深度内的吸收根只有160根,占总量的27.3%。从树体上部生长状况看,配施土杂肥、饼肥和埋草措施,可明显提高单位面积的短枝及枝量,增加叶面积系数,有利于树体的生长,可明显提高果实产量和品质,且产量稳定,可避免“大小年”现象。
Basing on fertilizing inorganic fertilizer, burying crop straws, fertilizering compost and cake fertilizer could improve sucking root and total root, form the fact of root distributing, burying crop straws extendes the root depth, the rate being seen of sucking root distributing in 41 cm - 80 cm soil was 45.4%, but the value for control was 27.3 % ; From seeing the trees top growth status, the measure of mixing compost, cake fertilizer and burying crop straws could apparent increase short branch and total branch per unit of area, increase leaf area cofficient, tree＇s growth and fi＇uit fertility and could apparent improve fruit yield and quality. Because the yield was stabilization, it could evoid the phenomeno of ‘big and small year＇.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2008年第2期52-55,共4页
Soil and Fertilizer Sciences in China
关键词
苹果
产量
有机肥
apple
yield
organic fertilizer
