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今年沙井子灌区水稻播种面积近14万亩,约占总播面积的41％,为灌区生产历史上比例最大的一年。灌区土壤含盐较重,而水稻只能忍受0.4克/升以下的含盐量。为了保苗保产,在管理上必须贯彻“水字当头”的方针。 稻田经济、合理用水是防止整个灌区不缺水,保证各种作物在不同生育期有水可灌的重要措施。一团农场对稻田的排水、换水制定了下列标准:(1)播后到苗期,稻田水发黄、发红或呈乌黑时,应排水、换水;(2)稻苗下部叶枯萎,叶片边缘卷曲,尖端下垂,颜色发暗
This year Shajingzi irrigated rice planting area of nearly 140000 acres, accounting for 41% of the total sown area, irrigation production history is the largest proportion of the year. Irrigated soil salt heavier, while rice can only tolerate the salt content below 0.4 g / l. In order to protect the seedlings, in the management must implement the “water bear the word” approach. Economic and rational water use in paddy fields is an important measure to prevent water shortage throughout the entire irrigated area and ensure that various crops can be irrigated at different growth stages. A group of farms on the drainage of the paddy field, changing the water to develop the following criteria: (1) sowing to seedling stage, paddy water yellow, red or black, should drain, water change; (2) , Leaf edge curly, pointed drooping, dark color