CAJ | 학술논문

采用室内盆栽试验,研究了不同磷肥施用晕对铁、锰、铜、锌在水稻中分布和糙米品质的影响.结果表明,盆栽条件下,施用磷肥显著降低了Fe、Mn、Cu、Zn在IR68144地上部的积累量,显著增加了Fe、Mn、Cu、Zn在两个品种糙米中的分布.在不同磷肥施用水平下,Fe、Mn、Cu、Zn在IR68144地上部的积累量显著高于IR64,表明IR68144从根到地上部运输微量元素Fe、Mn、Cu、Zn的能力更强.此外,施用磷肥促进了富铁水稻糙米对蛋白质的积累,抑制其对直链淀粉的积累,且导致胶稠度变软,对IR64糙米品质的影响较小.说明合理的磷肥管理措施可在一定程度上调控子粒微量元素积累,改善稻米营养品质.
채용실내분재시험,연구료불동린비시용훈대철、맹、동、자재수도중분포화조미품질적영향.결과표명,분재조건하,시용린비현저강저료Fe、Mn、Cu、Zn재IR68144지상부적적루량,현저증가료Fe、Mn、Cu、Zn재량개품충조미중적분포.재불동린비시용수평하,Fe、Mn、Cu、Zn재IR68144지상부적적루량현저고우IR64,표명IR68144종근도지상부운수미량원소Fe、Mn、Cu、Zn적능력경강.차외,시용린비촉진료부철수도조미대단백질적적루,억제기대직련정분적적루,차도치효주도변연,대IR64조미품질적영향교소.설명합리적린비관리조시가재일정정도상조공자립미량원소적루,개선도미영양품질.
In pot experiments at green house, effects of P fertilizer on distribution of Fe, Mn, Cu and Zn in shoot of rice and quality of brown rice were studied. The results were summarized as follows: under the condition of pot cultivation with silty loam soil, due to P fertilizer application, amount of Fe, Mn, Cu and Zn accumulated in shoot of IR68144 in-creased compare with control significantly, and their distribution in brown rice of two eultivars increased significantly.Moreover, amount of Fe, Mn, Cu and Zn accumulated in shoot of IR68144 was higher than that of IR64 at different P fertilizer application levels, which suggested that transportation ability of Fe,Mn, Cu and Zn from root to shoot in IR68144 is stronger than in IR64. Besides, P fertilizer promoted the accumulation of protein in brown rice of IR68144, decreased the accumulation of amylose, and enhanced gel consistency of brown flee, and scarcely any affected brown rice quality of IR64. Those results indicated that appropriate P fertilizer management increase micronutrients content in grains and improve nutrition quality of rice.