The main reasons for the strange phenomenon after rice heading
There are two main reasons for this phenomenon after rice heading: First, it is caused by zinc deficiency in soil. The second is caused by high temperature heat damage. As a result of high temperature above 35 degrees for three consecutive days in the booting or flowering stage of rice, pollen cells are necrotic and cannot be seeded normally. The following preventive measures should be taken:
I. Apply 2.3 kg of high-efficiency zinc fertilizer per acre when applying rice basal fertilizer to rice.
Second, a reasonable arrangement sowing period, so that booting and flowering period to avoid the hot weather.
Third, in the event of high temperature heat damage can take timely field irrigation deep water to reduce the ear layer temperature and spraying potassium dihydrogen phosphate, increase rice resistance to high temperature, reduce the effect of high temperature damage.
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