Comprehensive prevention and control method for overproof cadmium in rice
The invention discloses a comprehensive prevention and control method for overproof cadmium in rice. China has 1.8 billon mu of cultivated land, 7% of the cultivated land in the world is continuously fertilized with 1/3 of nitrogenous fertilizer and 1/3 of phosphatic fertilizer in the world for 30 y...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a comprehensive prevention and control method for overproof cadmium in rice. China has 1.8 billon mu of cultivated land, 7% of the cultivated land in the world is continuously fertilized with 1/3 of nitrogenous fertilizer and 1/3 of phosphatic fertilizer in the world for 30 years in agricultural production, and the agricultural production fully relies on the chemical pesticide and fertilizer. The comprehensive prevention and control method for the overproof cadmium in the rice includes that improving the soil of the paddy field which is polluted by cadmium, fertilizing vegetative ecological organic fertilizer which has concentration of 1500 kg/hm2 to 3000 kg/hm2, spraying vegetative ecological nutrient solution for 3 to 6 times in the whole growth period of the rice, adding 50 kilograms of water to 0.2-0.3 kg/mu, and fertilizing base fertilizer; fertilizing 300 kilograms of vegetative ecological organic fertilizer to each mu in the rice seedling managing period, fertilizing 150 to 250 |
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