离地种植水稻的基质配比和土层厚度对产量影响的初探  

Preliminary study on effects of substrate formulation and soil layer's thickness on rice yield of overhead planting

作　　者：辛雅芬[1] 

机构地区：[1]上海农林职业技术学院,上海201600

出　　处：《上海农业学报》2013年第5期89-91,共3页Acta Agriculturae Shanghai

基　　金：上海农林职业技术学院科研课题项目(091126)资助

摘　　要：从土层厚度、基质配比和灌水量三个方面研究了离地环境条件下,水稻正常生长的用土量、基质配比、灌溉水量等技术指标。结果表明:水稻种植于土层厚度在20~40 cm中或10 cm种植土加30 cm草炭土的配比基质上,获得等同或稍高于常规水稻田的产量,折合产量超过9000 kg/hm^2;水稻种植于土层厚度20 cm中,整个生长过程需要灌水526.3 mm,产生的最高压力为300 kg/m^2。The soil layer＇s thickness, substrate formulation and irrigation requirement were investi- gated under overhead planting to ensure normal growth of rice. The results showed that planting rice on the soil 20 - 40 cm thick or on the soil 10 cm thick plus peat soil formulation substrate 30 cm thick could gain a rice yield of over 9 000 kg/hm2 ,equivalent to or slightly higher than that of a convention- al rice field,When rice was planted on the soil 20 cm thick,a total of 526.3 mm irrigation water was required in the whole rice growth period and the maximum pressure produced was 300 kg/m2. The ex- periments indicated that overhead rice planting had a certain practical significance.

关 键 词：水稻 离地种植 土层厚度 灌水量 景观多样性 

分 类 号：S511[农业科学—作物学] S506