How to carry out fertilizer and water management in the field of rice field management in heavy rainfall

Technical characteristics of rice field management in heavy rainfall weather The impact of heavy rainfall on rice growth is mainly reflected in four aspects:

First, the rice seedlings are flooded, affecting the occurrence of tillers, and being flooded for a long time (generally drowning for 35 days) will cause a large number of dead seedlings in the greening period.

The second is to cause rice rafting and rot farming.

The third is to cause fertilizer loss and affect rice tillering. The fourth is that the live rice fields that are being closed and eliminated will be inundated with water and cause damage to the dead.

For heavy rainfall, rice field management should do four things:

1 timely drainage of exposed seedlings in the rice field before the arrival of heavy rain to open a good water shortage, after the rain to the heavy disaster field, assault drainage and waterlogging, water control, oxygen, open field ventilation, promote rice roots; Root-based, and strive to early roots, long new leaves.

2 To check the seedlings and make up the seedlings, you can use the remaining seedlings to fill in the seeds. You can also select the tillering plants in the uninjured fields for ramets. Use roots to reduce water damage and promote tillering.

3 Adhere to the management of wet roots and flooded rice fields should not be filled with deep water. Wet management should be adopted to promote roots and reduce the humidity in the field to reduce the occurrence of sheath blight.

4 Due to the dehydration of the seedlings in the heavily-fertilized field, the assaults and smashes the wounded fertilizer, combined with the tillering fertilizer, adding 35 kg of urea or 12.515 kg of high-concentration compound fertilizer per mu. It is strictly forbidden to pay heavy weight, so as not to cause a medium-term growth. Large-scale light-hit fields, except for a few fields with insufficient tillers, are generally not fertilized.

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