期刊论文

Effects of different negative pressures on the growth and water use efficiency of pepper plants

中文

农业现代化研究

1000-0275

2019

40

1

161-168

10.13872/j.1000-0275.2018.0077

国家高技术研究发展计划（863计划）项目（2013AA102901）~~；

本校为第一机构

为筛选出南方地区辣椒(Capsicum annuum L.)生长最适宜的灌溉负压值,采用土壤盆栽试验的方法,选择2种典型菜园土壤(潮菜园土和红菜园土),研究3个给水负压(-5.0 kPa、-10.0 kPa和-15.0 kPa)对土壤水分含量、辣椒产量、累积耗水量和水分利用效率的影响,探讨负压灌溉下适宜辣椒生长发育的给水水平。结果表明,-5.0 kPa给水负压条件下,潮菜园土和红菜园土的相对含水量分别为61.6%和60.5%;辣椒产量潮菜园土256.0 g/pot,红菜园土141.7 g/pot,显著高于-10.0 kPa和-15.0 kPa处理。辣椒生长期(5月4日-7月21日)-5.0 kPa处理潮菜园土累积耗水量为21.5 dm~3,显著大于-15.0 kPa处理,红菜园土为17.6 dm~3,显著大...

In order to select a suitable negative pressure for the growth of pepper (Capsicum annuum L.) in south of China, two vegetable soils (alluvial soil and red soil) were collected and a pot experiment was conducted to investigate the effects of three levels of negative pressure (-5.0 kPa,-10.0 kPa and-15.0 kPa) on soil moisture, pepper yield, total water consumption and water use efficiency. The results showed that under the negative pressure condition of-5.0 kPa, the relative soil water content was 61.6% and 60.5%, the pepper yield was 256.0 g/pot and 141.7 g/pot in alluvial and red soil, respec...