How does rice prevent lodging? Main points of prevention and control measures for rice lodging

Rice lodging usually occurs after rice flowering and grouting, especially in areas with frequent rain or typhoon, and it has a great impact on rice yield. Farmers have painstakingly planted rice. The low yield directly affects the economic income of farmers throughout the year. How to prevent rice from lodging and increase rice yield? Let's follow Xiaobian.

水稻倒伏

Rice lodging

The lodging of rice is closely related to many, such as rice varieties, rice cultivation methods, excessive population density, excessive nitrogen fertilizer or the impact of pests and diseases, so it is advisable to combine the selection of anti-falling varieties and scientific fertilization management to make plants. The root system is developed, the stem is thick and uniform, and the elasticity is good, which can effectively prevent rice from lodging.

Main points of prevention and control measures for rice lodging

1. Select anti-falling varieties

As far as possible, high-strength varieties are not used in production. Generally, the shorter the plant height, the stronger the lodging resistance. Promote nursery and transplanting to reduce the area of ​​direct seed rice. Generally, the distribution of roots in rice is shallow, and the roots of transplanted rice are not developed, which is prone to lodging.

2, reasonable close planting

The density of rice should not be too large. Generally, the transplanted rice should be kept at about 15,000 points. The tillering ability of rice is poor. If the growth period is too short, the number of holes can be increased appropriately. It is better to keep the depth of 2-3 cm when transplanting rice. The roots are too fast, but the roots are shallow and easy to fall. The deep sowing affects the growth of tillering tillers, which is not conducive to the formation of strong seedlings, and the risk of lodging is relatively large.

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3. Strengthen water and fertilizer management

Promote soil testing and formula fertilization, apply more organic fertilizer, increase application of silicon fertilizer, improve stalk toughness and disease resistance, apply early glutinous fertilizer, stabilize the application of joint fertilizer, pay attention to ear fertilizer, but avoid partial application of delayed nitrogen fertilizer to prevent stem base section The room is too long, and the rice is late and late.

In the tillering stage, shallow water is kept in the field, and the field is promoted in time to promote the development of roots and enhance the lodging resistance of the plants. The dry and wet alternates in the field after rice filling, enhance the vitality of the roots, adjust the roots with the roots, and protect the leaves with roots to prevent premature aging or water accumulation. Too much, especially lodging.

4, scientific spraying anti-dumping agents

Before transplanting rice, it can be sprayed with calcium cyclate or chlormequat or auxin or paclobutrazol to control plant height growth, promote tillering, and develop root system, which can effectively enhance the lodging resistance of plants. .

5, prevention and control of pests and diseases

Before the rice breaks to the rice heading and flowering stage, it can be used to effectively control the sheath blight and rice by spraying thiabendazim plus ene pyridinone plus Kangkuan or afufoamide plus An Rongle plus protection. Diseases and pests such as koji, rice blast, rice planthopper and borer can also effectively enhance the plant's resistance to stress and lodging.

For field plots with more weeds in the field, it is advisable to select the corrective agents according to the types of weeds before the jointing of rice, to prevent the grass from being bullied, and the growth is not good.

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The above is about the introduction of rice to prevent lodging. To do the above five points, everyone can plant rice that does not fall down and has high yield.

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