Agricultural experts "sunbath" to fight drought "Bao Dian" | Rice: It is adaptable for different growth periods

Editor's note: Since early July, Hunan Province has continued to be high -temperature and hot in Hunan Province, and has issued a red warning of temperature many times. For crops, high temperature and drought will destroy its growth environment and affect generating efficiency. It has become an urgent need to help farmers' effective response to high temperature and drought and strive for high yield and stable production. To this end, the reporter invited many experts from the Hunan Academy of Agricultural Sciences to share the effective drought -resistant "treasure" to everyone.

Currently, it is the critical period for the formation of rice output in Hunan. Continuous high temperature and drought will affect the growth period of rice, thereby inhibiting the normal growth and development of rice or even the dried death of the plant. In order to help rice cope with high temperature and dry weather, the job experts of the Hunan Rice Industry Technology System give specific suggestions.

First, adjust the temperature with water to prevent high temperature heat damage.

For the late rice in the medium rice, the stretch ears to the dumping period of the grouting period, it is necessary to maintain a 8-10 cm water layer in the field, and the spray is used in a timely manner to reduce the temperature and reduce the temperature of the field and the ear temperature. At the same time, leaf surface can also be adopted to apply potassium dihydrogen and mossispene esters to enhance the heat and drought -resistant plant of the plant, reduce or alleviate the harm, and increase the vitality of pollen. For the double -season late rice and regeneration rice in the heyday, the shallow water layer in the field should be kept to promote the spikes. For drought rice fields, it is necessary to make full use of various water sources and transportation irrigation methods in time, improve irrigation efficiency, and promote rice growth and development.

Second, we must scientifically fertilize and restore control reasonably.

First of all, for the late rice during the pregnancy period, the seedlings should be applied in time when watching the seedlings. The leaf color obviously fades the "yellow" fields. Generally, the urea per mu is 5-8 kg+potassium chloride 7.5-10 per mu 7.5-10 Kg, strong stalks promote large spikes to increase the strong rate; for field blocks with high fertilizer, too large group stems, darker leaf color, and scattered nitrogen fertilizer. Generally, potassium chloride per acre is 7.5-10 kg , Stalk stalks to prevent corruption and increase their strong rates.

For field blocks for regeneration rice, 5-10 kg of urea in about 10 days before the rice harvest of rice in the first season, premature stems, premature stems, promoting the axillary germination, timely irrigation and drought in the first season of rice, 5- 10 kilograms of urea as seedlings fertilizer; if it encounters continuous high temperature weather after harvesting, it is necessary to deepen the water layer in time according to the height of the recycled seedlings, reduce the field temperature, and promote the growth of recycled seedlings.

Secondly, for the first season of rice in the regenerative rice or the one -season late rice fields in the season of regenerating rice, 0.2%of the pyrophumphloride solution or plant growth regulator of the leaf surface can be sprayed on the leaf surface to enhance the resistance of the plant, promote the grouting of the grain grouting , Improve the strong rate and thousands of grains. For field blocks with a particularly low interaction rate affected by high temperatures, regeneration rice can be retained in a timely manner according to the local temperature resources, nitrogen fertilizer is appropriately applied to promote low -saving dormant buds into spikes to make up for production losses.

Third, we must strengthen monitoring and prevent and control the harm of diseases and insects.

The policy of "prevention -oriented, comprehensive prevention and control" should be adopted to strengthen the emotional testing of pests and insects, and strengthen the comprehensive prevention and control of diseases and insects before and after the dumping period. The middle rice and late rice should focus on the prevention and treatment of rice live lice, rice vertical rolls, rice plague, rice music, and tattoo disease. Among them, rice song disease should focus on 2 packs of love seedlings (30%benzo • propyoprazole lactine) 6-8 days before the rice breaking. 100 ml of water spray 60 catties of water. Spray again at 1/3-1/2.

In addition, due to long -term drought in drought, long -lasting long rain, so late -season late rice and regenerative rice must focus on rice live lice, dihua, trianguae, and tattoo disease, rice song disease, rice plastic disease, Waiting for the prevention and treatment of diseased and insect pests. Vigorously promote the control of control and green prevention and control, reduce the amount of chemical pesticides, and improve the prevention and control effect. (Hunan Daily All Media Reporter Zhou Yangle Correspondent Liu Weishuai Liu Baihao)

[Responsible editor: Wang Yaobing Intern: Yang Shuwen]

[Source: Hunan Daily · New Hunan Client]

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