权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

The growing technique for production of chemical-free vegetables and strengthening of food functionality by closed seedling production system

封闭式育苗系统生产无化学蔬菜及强化食品功能的栽培技术

基本信息

批准号：
17580022
负责人：
HOHJO Masaaki
金额：
$ 2.24万
依托单位：
Chiba University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

项目摘要

Contents of ascorbic acid were measured of Komatsuna and Spinach sawn on October and grown under soil and soil less culture. For soil culture, basal fertilizers were applied at three levels. For soil less culture, effects of organic compounds in nutrient solution were investigated. Plant heights and flesh weights 32 days after seeding of Komatsuna and Spinach tended to be inhibited as the amount of basal fertilizers increased. The effect of basal fertilizers was more apparent in the case of spinach, and its ascorbic acid contents tended to increase with higher amount of basal fertilizers. Although the contents of Ascorbic Acid of Komatsuna were higher than those of Spinach for all the levels of basal fertilizer applications, the relationship between the Ascorbic Acid contents and the amount of basal fertilizers was not clear. Compared to the conventional nutrient solution, nutrient solution with organic compounds inhibited the growth and accumulation of ascorbic acid of both crops. The … More effects of organic compounds were stronger in Komatsuna than those in Spinach. Crops to be grown, kinds of organic materials used and the composition of nutrient solution must be examined not in isolation but integrally.Spinach and Komatsuna were cultivated without chemicals under soil less culture in a enhanced germination chamber and in a closed chamber for seedling production, which resulted in flesh weights of Spinach as high as 2 to 3 times, and those of Komatsuna as high as 1.5 to 2.5 times, compare with the conventional method. Suitable seeding density for rapid cultivation in a closed chamber was investigated. Plants seeded on the cell tray with 288 cells showed slight delays in growth compared with those with 144 cells. It is better to use the cell tray with 288 cells in view of its much less cultivation cost. The need for decreasing the nitrate contents of Spinach is very strong, because excess contents of nitrate in leaves is said to affect human health adversely. In this research, refraining to add nutrients to the nutrient solution a few days before harvesting decreases leaf nitrate content, though refraining too long days before harvesting decrease the growth rate. Less

测定了10月份锯叶小松菜和菠菜在有土栽培和无土栽培条件下的抗坏血酸含量。对于土壤培养，基肥分三个水平施用。在无土栽培中，研究了营养液中有机物的影响。小松菜和菠菜的株高和苗后32天的肉重随着基肥用量的增加而有抑制的趋势。菠菜的抗坏血酸含量随基肥施用量的增加而增加。尽管在所有基肥水平下小松菜的抗坏血酸含量均高于菠菜，但其抗坏血酸含量与基肥施用量之间的关系并不明确。与常规营养液相比，有机复合营养液抑制了两种作物的生长和抗坏血酸的积累。的 ...更多信息有机化合物的影响小松菜比菠菜强。对所种植的作物、所使用的有机物料种类和营养液的组成不能孤立地进行考察，而应综合考虑。菠菜和小松菜在无土栽培条件下，在强化发芽室和密闭育苗室中进行无化学品栽培，菠菜的肉重可达2 ~ 3倍，小松菜的肉重可达1.5 ~ 2.5倍，与传统方法相比。研究了密闭培养箱快速培养的适宜接种密度。与具有144个细胞的那些相比，接种在具有288个细胞的细胞托盘上的植物显示出轻微的生长延迟。考虑到培养成本较低，最好使用288个细胞的细胞托盘。减少菠菜中硝酸盐含量的必要性非常强烈，因为据说叶子中过量的硝酸盐含量会对人体健康产生不利影响。在这项研究中，在收获前几天停止向营养液中添加营养物质会降低叶片硝酸盐含量，尽管在收获前停止太长时间会降低生长速度。少