Guiding Opinions on Rice Science Fertilization Technology in the Single and Double Season Rice Regions of the Yangtze River in the Spring of 2015
Single and double-season rice areas in the middle reaches of the Yangtze River (central eastern Hubei, northeastern Hunan, northern Jiangxi, Anhui)
Fertilization principle
(1) Appropriately reduce the total amount of nitrogen fertilizer and increase the proportion of panicle fertilizer. (2) Deep application of base fertilizer, topdressing "with water with nitrogen".
(3) Phosphate fertilizer is preferred for calcium or calcium magnesium phosphate. (4) Add organic fertilizer and promote straw returning. 2. Fertilization advice
(1) The production level is below 350 kg/mu, the nitrogen fertilizer (N) dosage is 6~7 kg/mu; the production level is 350~450 kg/mu, the nitrogen fertilizer (N) dosage is 7~8 kg/mu; the production level is 450~550 kg. /mu, nitrogen fertilizer (N) dosage 8~10 kg/mu; production level 550 kg/mu or more, nitrogen fertilizer (N) dosage 10~12 kg/mu. Phosphate fertilizer (P2O5) 4~7 kg/mu, potash fertilizer (K2O) 4~8 kg/mu.
(2) 50%~60% of nitrogen fertilizer as base fertilizer, 20%~25% as manure, 10%~15% as panicle fertilizer; phosphate fertilizer as all base fertilizer; 50%~60% of potash fertilizer as base fertilizer, 40%~50% as Spike fertilizer; in the zinc-deficient area, the appropriate amount of zinc fertilizer; appropriate base application of silicon fertilizer.
(3) The amount of base fertilizer can be appropriately reduced by applying organic fertilizer or planting green manure. In the land where straw is returned to the field, the amount of potassium fertilizer can be reduced by about 30%.
This article URL: Guiding Opinions on Rice Science Fertilization Technology in the Single and Double Season Rice Regions of the Yangtze River in the Spring of 2015
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