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Low temperature and long rain, Sichuan spring crops urgently need to strengthen post management
Since the end of March this year, there have been long-term low-temperature and rainy weathers in the Sichuan Basin that have been rare since the meteorological record, which has caused very adverse effects on the spring production in the basin. Most of the spring crops such as rice, corn and peanuts have grown. The development is not normal, the rice has poor tillering, the effective ear is small, the corn growth is insufficient, the bald tip length is large, and the pests and diseases are heavy. The rainstorm flood in July also caused a certain loss to Dachun production. The production situation in Dachun is not optimistic and urgently needed. Strengthen the field management in the later period to make up for the losses caused by the adverse weather in the early period. In this regard, the agricultural experts put forward the following suggestions:
1. Strengthen rice soil nutrient management and pest control. This year, rice is seriously affected by the low temperature and low temperature weather. Not only the yield components are poor, but also the occurrence of pests and diseases is serious. All localities should attach great importance to the field management of rice in the late stage. The paddy mountain area and the paddy field in the paddy field and the cold-soaked field in the basin should be fertilized with fertilized farmyard manure, grass ash and other hot fertilizers, and appropriate zinc fertilizer should be added to promote the transformation of rice seedlings to facilitate normal rice. Growth and development. Due to the low temperature, the current water temperature and mud temperature are still low. Under the condition of ensuring the moisture required for rice booting and heading flowering, shallow water irrigation can be adopted. The depth of each irrigation is 3~5 cm, and then water is poured and dried. Improve soil temperature, promote root growth and normal supply of nutrients, and strive to form large spikes and increase 1000-grain weight to compensate for the lack of effective spikes. The pests and diseases of rice in various places have occurred in this year. All localities should attach great importance to the prevention and control of rice panicles, sheath blight, rice smut, rice stem borer, rice leaf roller, rice locust, and minimize the damage caused by pests and diseases.
2. Strengthen field management of dryland crops. This year, the spring crops in the basin have been heavily wetted since the planting, and the soil moisture is mostly in a state of excessive humidity. All localities should clean up the ditches in time to eliminate the field water, remove the weeds in the field, remove the old leaves and diseased plants, and improve the field. Through conditions, reduce the soil and air humidity in the field, and create a more suitable ecological environment for the late growth and development of spring crops, and promote the normal pollination and grain filling of summer maize. All localities should strengthen fertilization-centered field management, promote the active growth of red carp, and take advantage of the long growth period and potential for increased yield of red carp, and strive to increase the output of red carp by a greater level than last year to make up for the loss of dryland food.
3. Try to make up for the losses caused by the floods. The flood-affected areas should seize the favorable weather conditions in the near future, actively carry out self-rescue production, timely drainage and de-staining, dredging and washing seedlings, and the application of appropriate amount of quick-acting nitrogen fertilizer in the de-fertilized paddy fields. Add quick-acting nitrogen fertilizer and dry it in time. Replanting and replanting the harvested plots in a timely manner, adding autumn acacia, autumn vegetables and autumn soybeans to compensate for the losses caused by the floods.
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