摘要
为了改进梨园土壤管理制度,克服清耕制土壤管理措施对梨园土壤水分和结构的不利影响,在黄冠梨园采用随机区组试验设计,以清耕为对照,进行了生草和秸秆覆盖处理,对其土壤水分、土壤容重和土壤结构进行了测定分析。结果表明:随灌水后时间延长,秸秆覆盖比清耕可显著的保持土壤水分,灌水后时间越长保水效果越明显;果园生草在短期内即灌水后20天,其土壤含水量与清耕差异不显著,但随着灌水后时间的延长,会显著降低土壤含水量;果园生草和覆盖可以显著降低0～20cm的表层土壤容重和表层土壤的固相体积;果园覆盖可以显著提高表层土壤的液相体积,降低20～40cm土层的气相体积。
In order to improve the soil management practice and overcome the negative effects of tillage on the soil water and structure, the soil water, bulk density and structure were studied in the farming, grassing and mulching Huanguan-pear orchard, using the randomized complete block design. The result showed that the soil water of mulching was significantly maintained and the longer the watering day the higher the soil water. The grassing soil water was not significantly different to farming soil water after the 20 days of watering. But the grassing soil water was significantly reduced when the watering day was long. The soil bulk density and solid volume were significantly reduced in the depth of 0-20 cm grassing and mulching surface soil. The liquid volume was significantly increased in mulching surface soil and the gas volume was reduced in the depth of 20-40 cm mulching soil.
出处
《中国农学通报》
CSCD
北大核心
2010年第9期259-262,共4页
Chinese Agricultural Science Bulletin
基金
国家科技支撑计划资助项目"耗水型果树减蒸降耗及种植管理节水技术集成与示范"(2007BAD69B07)
关键词
梨园
生草
覆盖
土壤水分
土壤结构
pear orchard
grassing
mulching
soil water
soil structure
作者简介
第一作者简介：王庆江，男，1974年出生，河北邯郸人，讲师，博士，主要从事果树水分生理研究。通信地址：056021河北省邯郸市中华南大街62号，河北工程大学中华南校区农学院园艺园林系，Tel：0310—8576726，13503102500，E—mail：qjwang001@163．com。
