Containing chlorinated fertilizers when used cautious

Chlorine is one of the essential nutrients for plant growth. Chlorinated fertilizers mainly refer to chemical fertilizers containing chloride ions. Chloride-containing fertilizers are mainly ammonium chloride, potassium chloride, and chlorine-containing compound fertilizers (complex fertilizers). Improper use of these fertilizers will cause more damage to crops, which will not only affect the quality of crops, but also cause damage to crops. When using such chlorine-containing fertilizers, the following issues must be noted:

First, tobacco, potatoes, sweet potatoes, leeks, lettuce, grapes, apple saplings and other crops with low chlorine tolerance should not use chlorinated fertilizers.

Second, Putian (including live field) should not use chlorine-containing fertilizers, otherwise it is easy to cause bad species, rotten seedlings.

Third, it is forbidden to contact chlorine-containing fertilizers with seeds and seedlings. Otherwise, they will cause rotten seeds and rot-root dead seedlings.

Fourth, chlorine-containing fertilizers should be used in sugar-resistant crops such as sugar beet, spinach, millet, radish, chrysanthemum, rice, and sorghum, and follow the principle of a small number of times. They must not be used as seed fertilizers, should not be used as seedling fertilizers, and must not be used as foliar fertilizers. Spraying.

Fifth, it is not suitable for continuous application of chlorinated fertilizers for many years. It is best to use chlorinated and non-chlorinated fertilizers alternately or every other year.

Sixth, greenhouses, greenhouses, fruits and other high added value crops should not be applied with chlorinated fertilizers. Greenhouse vegetables try not to use potassium chloride whose potassium oxide content is less than 60%. In addition, the application amount of chlorinated fertilizers must be controlled to prevent accumulation of salt. In particular, ammonium chloride has a high content of chlorine. The salt-inducing capacity is much higher than that of potassium chloride. Greenhouse vegetables should not be used.

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