摘要
本文研究复式沟地土壤水分效应对桑叶产量的影响,并着重研究伏旱土壤水分变化与杂交桑生长的关系。试验结果表明,复式沟地对土壤水分的调控效果显著,与坡地(CK,下同)相比,土壤含水量,0~15cm土层平均多31.3g/kg,15~30cm土层平均多21.9g/kg,杂交桑成活率提高4.79%,主于高生长增长30.35%,桑叶产量增力029.80%。因而复式沟地的保墒措施,为合理开发利用红壤,大面积在丘陵红壤上发展桑园提供科学依据。
This paper deals with the influence of soil moisture effect of the double furrow project Onmulberry-leaf yield, emphatically the relation between the growth of cross-mulberry and thechange of soil moisture content in hot and dry season. The results show that the soil moisturecontent is effectively regulated by the double furrow project. The soil moisture content of thedouble furrow land is greater than that of sloping fields,i. e by 31.1g/kg in the 0~15cmsoil horizon and by 29.1g/kg in the l5~30 cm soil horizon on the average. The survival rateof cross-mulberry raise by 4.79%, The growth of the main trunk height increases by30. 35%. The yield of mulberry-leaf increases by 29.80%, Therefore, the measure of pre-serving the soil water by the double furrow project provides a scientific basis for the rationalexploitation and utilization of the red soil and the development of mulberry-orchards in hillyredsoil areas.
出处
《江西农业大学学报》
CAS
CSCD
1994年第1期25-32,共8页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家自然科学基金
关键词
复式沟地
杂交桑
土壤含水量
生长
the double furrow project
cross-mulberry
soil moisture effect