水稻种子的夏季贮藏

1、窖藏法选背风向阳，地势略高，地下水位低的地方挖窖。窖的大小按贮种量、地势、土质而定。一般2.5立方米的窖容可贮250公斤稻种。窖深以1.5～2.0米为宜，如挖窖过深，窖温增高，地下水上升，种子含水量增加。窖容以2立方米左右为宜，土质好的也不宜超过3立方米。长形窖比圆形窖好，容易与地温接近，能自然控制温度，不致发热坏种。入窖时期，以土层上冻3～6厘米厚时为好，出窖时间以化冻6～10厘米为好。过早出窖，气温尚不稳定，一冻一化，受变温中的低温影响易降低发芽率；过晚出窖，阳气上升，地下水提高，种子易受潮，降低生活力。出窖后的种子应苫盖防寒，更不要马上暴晒，造成破皮，降低发芽率，应逐渐风干晾种，再行晒种，这样可提高发芽率。

2、暖库保管法暖库就是库内增加取暖设备，一般是增设炉子或地火龙式的火墙。在气温最低时生火，适当增温，特别是黎明时温度低更应增温。库温应根据种子含水量确定，水分小则库温可低些，水分大则库温调高些。种子含子量在16%左右时，宜保持库温在0～5℃之间。

  

3、分户保管法在住人房间炕梢垫上15～30厘米高的木板，或南北炕间搭板，在木板上放3～5袋种子过冬。这种方法实际上是一种温室保管。因室温较高，又较稳定，空气也较干燥，种子水分能逐渐下降，所以比较安全，能使种子保持较高的发芽率。在保管期间，切忌里外屋搬出搬进，更不要在有锅灶做饭湿度大的屋内保管，以免增加水分和因温度变幅大而刺激种子，降低发芽力。

4、冷库保管法凡种子水分不超过14%的可用冷库保管。这种保管法，是在库内立囤。库房地面没有地板的，要垫枕木和木板，铺上草帘、炕席隔潮，然后立囤，四周再围上草帘，囤顶也要盖草帘保温。

5、室外露天保管法种子含水量低的可采取这种保管方法。选背风向阳地势高的地方立囤，囤底垫木棱，铺15～30厘米厚干稻草，再铺草帘或炕席，四周围上草帘，中间堆放稻种，高2～3米，然后用稻草严密覆盖，苫好顶部。由于囤北面和西面受风影响较大，受低温冷害重，往往发芽率低于东面和南面，因此，西面、北面应加厚防护层。

 Medical Bed

We are Hospital Electric From China Manufacturer Medical Bed, also known as Hospital Bed Home Care, Hospital Equipment, Nursing Bed, etc., is a hospital bed used by patients when they are hospitalized in the hospital.

There are many classifications of medical beds, and the specific classification methods are as follows: According to the material, it can be divided into ABS medical beds, all stainless steel medical beds, semi-stainless steel medical beds, all steel sprayed medical beds, etc.

According to the function, it can be divided into electric medical beds and manual medical beds. Among them, electric medical beds can be divided into five-function electric medical beds and three-function electric medical beds. Manual medical beds can be divided into double-shake medical beds and single-shake medical beds. Medical beds, flat medical beds.

According to whether it can be moved, it can be divided into a wheeled medical bed and a right-angle medical bed. Among them, electric medical beds are generally movable with wheels.

Medical Bed,Electric Wooden Bed,Medical Bed Hospital Electric,Hospital Bed Home Care

Haloxylon Ammodendron Medical Equipment Co., Ltd. , https://www.ssmedicaldevic.com