When the rice is in the tillering stage, it is a crucial period for building a high-yield group. All localities should adapt to local conditions, and because of the seedling system, in accordance with the principle of “miao to unequal time, time to unequal seedlingsâ€, we should do our best to implement key field management measures such as land laying, and lay a good foundation for building high-yield groups.
Timely scientific fielding will strengthen the ditch system to ensure convenient irrigation and drainage. For the normal growth of the field, adhere to the combination of shallow water and irrigation and open field gas, promote the occurrence and rooting of tillers, and start dehydration in the field when the stems of the stems reach 80% to 90% of the expected number of ears. For the fields in which the previous period was due to continuous rainfall, the effect of the field was not ideal, the group was too large, and the leaf color was not obvious, it was necessary to organize artificial or mechanical ditching to speed up the field. The effect of the field is good, the leaves have been pulled off the yellow field, and intermittent humid irrigation is carried out until the shallow water layer is established at the booting stage and the heading and flowering stage. On the basis of the application of restorative fertilizer, the live-seeded rice and the late-planting machine that have been replanted by the rain will be soft-shelved and light-shelved in accordance with the fertility process to enhance the vitality of the roots. Speed ​​up the birth process.
According to the growth of seedlings and the disaster situation in the early stage, the fertilizer management strategy was optimized. For the field planting with good seedlings and good seedlings, use a small amount of nitrogen fertilizer to catch the yellow pond and promote the balance; for the direct seeding rice with long flooding time and poor root activity, and the late planting machine to insert the field, the foundation of the base fertilizer On the basis of the appropriate conditions to supplement the application of fertilizer, with phosphorus, potassium compound fertilizer, or spray foliar fertilizer , accelerate recovery and promote the transformation of seedlings. For the fields with normal fertility, suitable population size, field-measurement measures, and leaf color fading, according to the leaf age process, the panicle fertilizer should be applied in time to promote the differentiation of young ears, which lays a good foundation for increasing the number of grains and increasing the seed setting rate.
Strengthening the prevention and control of pests and diseases, continuous low temperature and rainy weather, is conducive to the spread of diseases such as rice blast, sheath blight and bacterial blight, and is also conducive to the migration, reproduction and harm of rice leaf roller and rice planthopper. According to the monitoring and forecasting of the plant protection system, the right-hand pharmacy should be selected to prevent and control the pests and diseases in a timely manner.
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