Rice August Booting Management
First, the field management of rice at the booting stage After a good early period of vegetative growth, it will enter the middle and late stages of reproductive growth. Strengthening water and fertilizer management at this stage is very important for high yield. Clever application of panicle fertilizer, according to the growing field of rice may be: excessive number of acres of stems, dark green color of the plot is not applied, insufficient number of acres of stem, yellow-leaf plot fertilizer, can play a significant increase in production.
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1. Applying panicle and panicle fertilizer: Around August 5, the plot that did not apply early panicle fertilizer (mid-to-late July) was yellowed with yellow leaves and 5-7 kg of urea. At this time, the plants grow vigorously and the foliage transpiration is large, which is the period when most of the water is needed. Therefore, water shortage is not available, and water shortage increases the abortion of the spikelets and the increase of empty grains, resulting in a reduction in yield and irrigation of 3-5 cm.
2. Application of granule fertilizer: In mid-August, when the leaf color is obviously yellow at the heading stage, it should be supplemented with grain fertilizer. Mushi urea can increase grain weight by 5 pounds. The heading to full heading period is the second critical period of water requirement. To maintain the water layer (1-2 cm), the pollen and stigma of the water shortage will be easy to dry, cannot be pollinated, increase the empty shell, and after the panicle is full, the water shall be filled. Dry and wet and wet moisture management is conducive to root oxygen supply, root protection, and seedlings.
Second, pest and disease prevention
1. Prevention and control of the second generation of warts: Use 500 times liquid of insecticide to spray 30 kg per mu.
2, control of rice blast disease: Central diseased plants, timely prevention and treatment. With 5% carbendazim, 100 grams per mu, water 60 kg spray.
3, control of rice smut: 7-10 days before the emergence of the ear with 5% Jinggangmycin 250-300 g per mu watered 25-30 kg spray. 