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主要介绍了缓效多营养包硫尿素实验研究及其缓效性的测定 ,尿素 30min用水淋溶的溶出率为 90 % ,而缓效多营养包硫尿素用水淋溶溶出 90 %的时间为 2 6 0min。
This paper mainly introduces the experimental study of slow-acting and multi-nutrition-package thiourea and the determination of its slow-acting effect. The leaching rate of urea leaching in 30 min is 90%, while that of slow-acting multi-nutrient leaching urea in water leaching is 90% 6 0min.