Cultivating method under LED artificial light environment, suitable for whole bearing period of rice

Abstract

The invention relates to the technical field of rice planting, in particular to a cultivating method under LED artificial light environment, suitable for the whole bearing period of rice. The cultivating method comprises the following steps of (1) performing disinfection and seed soaking treatment on rice seeds, and spraying the treated rice seeds in a seedling raising tray; (2) placing the seedling raising disk in a darkroom, and performing breeding and germination acceleration; (3) after seed embryos are germinated, placing the seeds in nutritive soil of the seedling raising tray, and performing culture at 24-26 DEG C to obtain seedlings, wherein the surface illumination intensity of the nutritive soil in the tray is 150-250 [mu]mol.m<-2>.s<-1>, and the illumination period is 12-16h / d; (4) performing division transplantation on the seedlings, guaranteeing room temperature to be 24-26 DEG C, guaranteeing that the intensity of leaf surface light quanta reaches 300-450 [mu]mol.m<-2>.s<-1>, and guaranteeing that the illumination period is 12-16h / d; (5) when rice enters the young ear development period, guaranteeing that the quantity of the leaf surface light quanta reaches 500-800 [mu]mol.m<-2>.s<-1>, and guaranteeing that the illumination period is 12-16h / d; (6) when the rice of short-day variety enters the pre-blooming period, guaranteeing that the illumination period is 8-12h / d; and (7) when rice ears are mature, performing seed harvesting.

Description

technical field [0001] The invention relates to the technical field of rice planting, and specifically relates to a method for cultivating rice in an artificial light environment during the whole growth period. Background technique [0002] Rice is one of the most important food crops in my country, and the research on indoor rice cultivation in artificial climate is of great significance to rice production. Indoor cultivation of rice in an artificial climate requires a suitable light environment, and the use of suitable artificial light to grow rice can regulate the number of planting stubbles. It has environmental potential in the study of rice environmental stress response, disease and insect pest control, rice breeding, reproduction, improvement and germplasm resource renewal. control advantage. However, when growing rice indoors, the environmental parameters for planting still need to be studied and optimized. A suitable light environment is one of the key factors affe...

AI Technical Summary

Problems solved by technology

There may be studies on the four growth stages of rice, but at least two different spectra are proposed, and the lights have to be changed during rice cultivation, which increases equipment procurement costs and management costs

[0008] In addition, the number of light quanta that the existing rice LED lights can provide to rice is far from enough, and the light saturation point of some varieties of rice at the heading stage even reaches 2000 μmol·m -2 ·s -1 The above; the existence of these problems makes it difficult to efficiently plant rice indoors using artificial light sources

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