How to plant rotten rice seedlings?

Rotten seedlings include rotten seeds, rotten buds and rotten seedlings, and there are many problems in the planting process, but rotten seedlings are the most serious, which mostly occur in the low temperature season in early spring, when rotten seedlings will lead to lack of seedlings, delay the best planting period, and lead to abnormal planting. What about rotten rice seedlings when planting rice? The following pro-agricultural network brings you its prevention and control methods, let's take a look.

1. Causes of rotten rice seedlings

Rotten seedling is the general name of rotten seed, rotten bud and dead seedling.

Rotten seed: the seed is not well stored during storage, resulting in low germination rate of the seed, not changing water when soaking the seed, or soaking water is not clean enough to cause the seed to turn sour and smelly, and the temperature during germination is too high, all of these reasons will lead to seed rot.

Rotten bud: when the rotten bud is planted in the low-lying water-filled area, the seed root is restrained and cannot be cut down when the seed is planted, resulting in rotten bud, and it is disturbed by disease, resulting in rotten bud.

Dead seedlings: dead seedlings are caused by changes in temperature, often in a low temperature environment, which is not conducive to the growth of seedlings, so that the root absorption is weak, when the temperature suddenly increases, the transpiration is accelerated, the absorbed water can not keep up, resulting in water loss of balance, and eventually withered.

2. Symptoms of rotten rice seedlings

The causes of rotten seedlings are different, and the symptoms are also very different. rotten seeds are mainly caused by the blackening of rice seeds after sowing and the phenomenon of smelly rot. Rotten buds have sprouted after sowing, but the buds have not yet turned green and died. when rotten buds, milky gelatinous substances appear in the damaged parts and gradually turn into yellow hairs, resulting in the death of buds. The dead seedlings suddenly cleared up after the cold wave, and the seedlings appeared green or yellow. At the beginning, the young leaves began to curl leaves, the stems began to change color, and finally the plants withered and died.

3. Prevention and control of rotten rice seedlings.

Dry the seeds before soaking, select better seeds to soak in water, soak them thoroughly, pay attention to disinfection, and choose plots with leeward direction, convenient drainage and irrigation, loose soil and high fertility. If the disease caused by rotten seedlings is controlled by chemicals, the plastic film technology can be used to keep warm at low temperature, and the plastic film can be pulled apart in time when the temperature rises, and the adverse reactions should be observed at all times and dealt with in time.

The above is what to do with the rotten rice seedlings brought by the pro-agricultural network, there are many reasons for rotten rice seedlings, so we should observe carefully in order to prescribe the right medicine to the case. More relevant agricultural knowledge, please pay attention to the pro-agricultural network.