Science Management Water
The ear-spreading period of early rice is the most physiological water requirement in rice. In terms of water management, the reclaimed water should be rehydrated immediately before the end of drying. In the period of young panicle differentiation, the roots were moistened by air-conditioning, and the absorption capacity of the roots in early and late rice was improved. In the heading stage, shallow water was used to control the water intake, and the dry-wet alternation was increased in the grain-filling period. Part of the plots will be drained in time due to storm water accumulation to eliminate waterlogging.
See fertilization
Due to the high nutrient consumption of early rice in jointing stage and young panicle differentiation stage, special attention should be paid to seedling fertilization at this stage to ensure the growth of various nutrients in the middle and later stages. See the principle of seedling fertilization: the high-nitrogen field with leafy dark green color and leaf drape, and no nitrogen fertilizer; normal paddy field with leaf color, 5-8 kg of high-quality compound fertilizer or 2-3 kg of urea per gram, chlorination Potassium 2-3 kilograms for ear grain fertilizers to prevent premature failure of fertilizers during heading; yellowing for deficient fertility due to lack of fertility in the leaves, mu application of high-quality compound fertilizer 8-10 kg or urea 3-5 kg, plus Potassium chloride was applied at 3-5 kg ​​to meet the requirement of nitrogen fertilizer for young panicle differentiation. In addition, during the first week after the ear of the early rice breaks, it is sufficient to spray 1-2 packets of grain or 0.2 kg of potassium dihydrogen phosphate per acre for strong seed fertilizer.
Pest control
The current high-temperature weather, coupled with the recent heavy rainfall, is extremely conducive to the occurrence of migratory insect pests, increased humidity in the field, and favorable diseases. All localities must pay close attention to strengthening the rice planthopper, rice leaf roller, and rice blast disease in early rice. Pest control. In particular, the old ward of rice blast should be vigilant against the occurrence of rice blast disease. It is necessary to strengthen inspection and forecasting, accurately grasp the dynamics of pests and diseases, and timely control the spraying of pesticides so that “prevention is the main method, prevention and control are combined†and the epidemic of pests and diseases is strictly prevented.
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