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苏打盐渍土种稻时,掌握盐碱活动规律,确定合理灌溉技术,是保证各生育期供水、淋洗盐碱,防止次生盐渍化的重要环节。一、泡田洗盐苏打盐渍土开发种水稻,要提早泡田。黑龙江省西部地区一般在4月上旬到5月中旬泡田结束。因为时间久,水中溶解盐分也多。耕层冲洗后盐分小于0.15％,1米上层内盐分降到0.15～0.25％
When sodic saline soil is planted with rice, it is important to master the activity of saline-alkali soil and determine the reasonable irrigation technology to ensure water supply, leaching of salt and alkali and prevent secondary salinization in each growth period. First, frying salt saline soda saline soil development of rice, early to fry. The western region of Heilongjiang Province generally ends in early April and mid-May. Because of the long time, the water dissolved salt is also more. After the topsoil irrigation salt less than 0.15%, 1 m in the upper salt dropped to 0.15 to 0.25%