Preparation of rice nursing- seedlings and method for directly seeding mature seedlings
A technology for milk seedlings and rice, which is applied in the field of rice seedling cultivation and cultivation, can solve the problems of low survival rate of milk seedlings, short preparation process, and long required time, and achieve the effects of short preparation process, simple preparation process and high survival rate
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Embodiment 1
[0027] Embodiment 1: milk seedling preparation method:
[0028] It is the core step of the present invention to adopt the "seed refining method" to prepare rice milk seedlings. "Seed refining method" refers to the whole process from the time when the seeds absorb water to the preparation of milk seedlings, allowing the seeds (or rice buds) to absorb water, air, light and temperature evenly, and directly refine the seeds into milk seedlings.
[0029] The specific operation steps are:
[0030] 1. Preparatory stage: make preparations before seed refining: select seeds, remove impurities, select full-grained rice grains as rice seeds, and dry the seeds for 2 to 3 days under light conditions before seed refining Improve the germination rate; refine seeds outdoors in summer and in plastic greenhouses or outdoors in spring. Its method is: spread one deck straw on the ground, spread the fiber net that one deck mosquito is used on the straw layer, the width of fiber net is 3m, and th...
Embodiment 2
[0035] Embodiment 2: the seedling live broadcast method comprises the following steps:
[0036] 1. Flooding stage of live broadcast: Before live broadcast, arrange the land to be sown so that the height difference of the land to be sown is 2 . At this stage, the shallow water layer should be kept, and the shallow water layer should be: shallow without falling dry, and the depth should be ≤3cm. Keep water for 45 hours in summer and 70 hours in spring, then drain and dry to enter the seedling stage.
[0037] 2. Drying and standing seedling stage: Immediately apply an appropriate amount of quick-acting N.P.K fertilizer after draining and drying, and when there is no runoff water, the total amount of fertilization is 22.5-30.0kg / 667m 2 , N.P.K fertilizer at the stage of falling dry and standing seedlings, the fertilization amount of diammonium phosphate is 7.5-10.0kg / 667m 2 , The fertilization rate of ammonium sulfate is 10.0~15.0kg / 667m 2 , the fertilization rate of potassium ...
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