South China Plain Hilly Double Season Early Rice (South of Guangxi Zhuang Autonomous Region, Southern Guangdong Province, Hainan Province, Southeast of Fujian Province)
Fertilization principle
(1) Control the total amount of nitrogen fertilizer, adjust the base and the proportion of chasing, reduce the amount of nitrogen fertilizer in the early stage, and implement the shift of nitrogen fertilizer.
(2) Deep application of base fertilizer, topdressing "with water with nitrogen".
(3) Phosphate fertilizer preferentially choose calcium magnesium phosphate fertilizer or calcium.
(4) In a field with a soil pH of 5.5 or less, a silicon-containing alkaline fertilizer or a base applied lime is suitably applied.
(5) Supplementation of trace element zinc fertilizer in zinc-deficient fields, submerged rice fields and low-temperature and widowed areas.
2. Fertilization advice
(1) Recommended 18-12-16 (N-P2O5-K2O) or similar formula. (2) The yield per mu is 350~450 kg, the recommended dosage of formula fertilizer is 26~33 kg/mu, the base fertilizer is 13~20 kg/mu, and the split fertilizer and panicle fertilizer are applied respectively for 5~8 kg/mu, 3~5 kg/ mu.
(3) The yield per mu is 450~550 kg, the recommended dosage of formula fertilizer is 33~41 kg/mu, the base fertilizer is 17~24 kg/mu, and the split fertilizer and panicle fertilizer are applied respectively 7~10 kg/mu, 4~7 kg/ mu.
(4) The yield per mu is more than 550 kg, the recommended dosage of formula fertilizer is 41~48 kg/mu, the base fertilizer is 22~29 kg/mu, and the split fertilizer and panicle fertilizer are applied respectively for 8~11 kg/mu, 5~8 kg/mu. .
(5) The yield per mu is below 350 kg, the recommended dosage of formula fertilizer is 20~25 kg/mu, the base fertilizer is 11~14 kg/mu, and the split fertilizer and panicle fertilizer are respectively applied 4~6 kg/mu, 3~5 kg/mu .
This article URL: Guiding Opinions on the Scientific Fertilization Technology for the Double-season Early Rice in the South China Plain in the Spring of 2015
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