Management techniques for flowering stage of Rice heading Poplar

The heading and flowering stage of rice is the most critical period of rice growth, which is related to the yield and quality of rice. If it is not properly managed at this time, it may lead to yield reduction or no harvest. So how to manage the rice heading and poplar flowering period, come to the pro-agricultural network to see the rice heading and poplar flowering period management technology.

1. Water management

The most water requirement period of rice heading and poplar flowering stage is extremely sensitive to water. The most important thing in this period is not to lack water. It is necessary to ensure sufficient water and maintain a minimum water level of 3cm in order to make rice absorb and operate nutrients, increase photosynthesis and promote spikelet differentiation. In low temperature or high temperature areas, the water level can be appropriately deepened and the temperature adjusted to avoid affecting heading due to the high and low temperature. In poplar flowering time can not be a long time of deep water management, this will cause premature aging of the root phenomenon, so at this time generally keep the soil moist and wide cover, promote the robust growth of rice.

2. Fertilization management

The heading and flowering period of rice is related to yield and quality, so special attention should be paid to fertilization, such as proper application of panicle fertilizer, combination of nitrogen, phosphorus and potassium fertilizer, and fertilization according to rice variety, climate, soil and other conditions. Generally, early-maturing varieties generally do not need to apply ear fertilizer, and in the middle and late maturing varieties, appropriate ear fertilizer should be applied. Special attention should be paid to sandy soil with low fertility and poor fertility preservation when applying ear fertilizer. In addition, if the second black is not significant at booting stage, flower fertilizer can be applied to improve seed setting rate. If the leaf surface appears yellow and other symptoms, foliar fertilizer can be applied to prevent premature aging of leaves and achieve high yield.

3. Prevention and control of diseases and insect pests

It is necessary to control diseases and insect pests in heading and flowering stage of rice. The main diseases are sheath blight, rice blast, rice false smut, bacterial blight, etc. The main pests are rice planthopper, rice leaf roller, stem borer, etc. Agricultural control technology and ecological control technology should be combined, disease prevention should be given priority, insect pests can be trapped, captured and controlled by natural enemies, and pesticides should be used as little as possible. Even when insect pests are serious, efficient and environmentally friendly pesticides should be selected as a last resort, and the dosage and application method of pesticides should be mastered for treatment.

4. Rational use of drugs

Generally, when using drugs, use recommended drugs according to the instructions for use of drugs, applicable time and method, generally will not cause drug residues, but if it is not carried out according to regulations, excessive and repeated application will make drug residues exceed the standard and endanger people's health. In the heading and flowering stage of rice, it is extremely sensitive to pesticides. At this time, if unreasonable spraying of high concentration of fungicides and insecticides will cause abnormal growth, rice pollen abortion and yield failure. Therefore, the use of pesticides must strictly abide by the standards for safe use of pesticides and the guidelines for rational use of pesticides.

The above is the management technology of rice heading and poplar flowering period brought by the pro-agricultural network. I hope it can help you. If you want to know more about rice knowledge, please pay attention to the pro-agricultural network.