Methods of promoting early ripening in Rice

Rice is the main food crop in China, especially the staple food in the south is rice. Progress is planted in every household in rural areas, which is an important economic income. Many growers are asking how rice promotes early ripening. Let's learn about it with Xiaobian.

1. Rational irrigation

In the full panicle filling stage of rice, it is necessary to irrigate frequently in shallow water, which can increase the soil temperature and promote the early maturity of rice, generally keeping the water layer at about 4-6 cm. In the mature stage of rice, due to the gradual decrease of air temperature, in order to increase the soil temperature, we should take the moisture of intermittent irrigation, that is, irrigate 2-3 cm, let it dry naturally, and wait for shallow irrigation without water, which can increase the permeability of the soil. It can increase the vitality of rice root system, increase the soil temperature, raise the root rod, prolong the leaf life and promote the early ripening of rice. When rice enters the later stage of maturity, it is necessary to irrigate and drain reasonably according to the actual situation in order to increase the yield.

2. Weeding and topdressing

Weeds in the ridges and ditches should be cleared in time. For the remaining weeds in the field, weeds should be artificially weeded 1-2 times after heading, which can increase field permeability, improve soil temperature and promote early maturity. In order to prevent stem lodging and promote grain fullness, reasonable topdressing should be applied at full panicle filling stage, usually mainly phosphorus and potassium fertilizer, or spraying foliar fertilizer with higher phosphorus and potassium content, which is beneficial to rice early maturity, improve lodging resistance, seed setting rate and grain weight. it has obvious effect on increasing yield.

3. Application of plant growth additives

In order to promote early maturity, plant growth additives can be sprayed, such as brucinolide, which can promote early maturity to a certain extent, can promote cell elongation and division, and can also play a positive role in the possibility of rice. In general, it can promote rice to mature early for 5-10 days, depending on local conditions. It can also be sprayed with alkyl alcohol or ethylene at heading stage and filling stage, and it can also promote early ripening for about 2-3 days.

4. Raise the water temperature

In conditional areas, plastic film can be used to cover the branch canal of irrigation, which can increase the temperature of irrigation water, increase the temperature of irrigation water after irrigation, and promote precocity.

The above is the introduction of rice precocious methods, hope to help you, want to know more related knowledge, please follow us.