Rice regional formula and fertilization recommendations

(1) Fertilization Division China's new fertilizer network: According to regional and production layout, China's main rice production is divided into five large areas, namely: Northeast single-season rice area, Yangtze River basin single and double-season rice area, Jiangnan South China single and double-season rice area, southwest Plateau mountain single-season rice area and other rice areas. According to the climatic conditions, cultivation conditions and soil conditions in the region, it is further subdivided into 9 sub-regions, which cover more than 98% of the total rice area in the country. The specific distribution is as follows:
I-1 Northeast single-season rice region: all of Heilongjiang Province and some counties in Hulunbeier City, Inner Mongolia Autonomous Region.
I-2 Northeast Jiluo Inner Mongolia single-season rice area: all of Jilin and Liaoning provinces, and some counties of Chifeng, Tongliao and Xing'an League in Inner Mongolia Autonomous Region.
II-1 Single-season rice area in the upper reaches of the Yangtze River: the eastern part of Sichuan Province, the whole of Chongqing, the southwestern part of Shaanxi, some counties in northern Guizhou, and the western part of Hubei Province.
II-2 Single-double-season rice area in the middle reaches of the Yangtze River: the central and eastern parts of Hubei Province, the northeastern part of Hunan Province, the northern part of Jiangxi Province, the southern part of Henan Province, and all of Anhui Province.
II-3 Single-season rice region in the lower reaches of the Yangtze River: part of the southwestern part of Shandong Province, all of Jiangsu Province, and northern Zhejiang Province.
III-1 Single-double-season rice fields in the hilly areas of the south of the Yangtze River: south-central Hunan Province, southeastern Jiangxi Province, southern Zhejiang Province, north-central Fujian Province, northern Guangdong Province.
III-2 Hilly double-season rice area in the South China Plain: south of Guangxi Zhuang Autonomous Region, southern Guangdong Province, Hainan Province, southeast of Fujian Province.
IV Southwestern plateau single-season rice area: all of Yunnan Province, southwest of Sichuan Province, most of Guizhou Province, western part of Hunan Province, north of Guangxi Zhuang Autonomous Region.
V Others: mainly including the alluvial plains and valley plains with irrigation conditions in Xinjiang Uygur Autonomous Region, the Yellow River Irrigation District of Ningxia Hui Autonomous Region and the Bohai Bay, and the rest are scattered.

(II) Suggestions for large formulas and fertilization in different regions

1 Northeast single-season rice area

1.1 Recommended formula for single-season rice in the northeast cold region: 13-19-13 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 18-23 kg/mu, and the split fertilizer and spike grain fertilizer are respectively applied with urea 5-7, 3 kg/mu; (2) Yield level 550 -700 kg / mu, the recommended dosage of formula fertilizer is 23-29 kg/mu, and the fertilizer and panicle grain fertilizer are respectively applied with urea 7-8, 3-4 kg/mu, and the spike grain fertilizer is applied with potassium chloride 1-3 kg/mu. (3) The production level is above 700 kg/mu, and the recommended dosage of formula fertilizer is 29-33 kg/mu. The fertilizer is divided into 8-10, 4-5 kg/mu, and the grain fertilizer is applied to the potassium chloride. 1-3 kg/mu; (4) The production level is below 450 kg/mu, and the recommended dosage of formula fertilizer is 14-18 kg/mu. The fertilizer is divided into 4-5, 2-3 kg/mu.
1.2 Recommended formula for the single-season rice region of Inner Mongolia Jiliao Inner Mongolia: 15-16-14 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 500-600 kg/mu, the recommended dosage of formula fertilizer is 24-28 kg/mu, and the fertilizer is divided into 8-9, 4-5 kg/mu, respectively; The level is 600-700 kg/mu, the recommended dosage of formula fertilizer is 28-33 kg/mu, and the fertilizer and spike grain fertilizer are applied separately for urea 9-11, 5 kg/mu, and the spike fertilizer is applied with potassium chloride 1-3 kg/mu. (3) The production level is 700 kg/mu or more, and the recommended dosage of formula fertilizer is 33-38 kg/mu. The fertilizer is applied to the fertilizer and the grain fertilizer is 11-12, 5-6 kg/mu, and the grain fertilizer is applied to the potassium chloride. 1-3 kg/mu; (4) The production level is below 500 kg/mu, the recommended dosage of formula fertilizer is 19-24 kg/mu, and the fertilizer and panicle fertilizer are separately applied with urea 6-8, 3-4 kg/mu.

2 single and double season rice areas in the Yangtze River Basin

2.1 Single-season rice area in the upper reaches of the Yangtze River 2.1.1 Low-concentration formula fertilization scheme Recommended formula: 11-11-8 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 40-49 kg/mu, and the fertilizer is divided into 6-7 and 4 kg/mu, respectively; (2) the production level is 550. -650 kg/mu, the recommended dosage of formula fertilizer is 49-58 kg/mu, and the fertilizer is divided into 7-8, 4-5 kg/mu, respectively; (3) the yield level is 650 kg/mu or more, formula fertilizer The recommended dosage is 58-67 kg/mu, and the fertilizers for splitting and the grain of corn are applied separately for urea 8-9, 5-6 kg/mu, and the spikes for grain fertilizer are applied for 1-3 kg/mu of potassium chloride; (4) the yield level is 450 kg. Below / acre, the recommended dosage of formula fertilizer is 31-40 kg/mu, and the fertilizer for splitting and the grain of corn are applied 4-6, 3-4 kg/mu respectively.
2.1.2 High-concentration formula fertilization program Recommended formula: 16-16-13 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 27-34 kg/mu, and the split fertilizer and panicle fertilizer are respectively applied with urea 6-7, 4 kg/mu; (2) the production level is 550. -650 kg / mu, recommended dosage of formula fertilizer 34-40 kg / mu, sub-fertilizer and ear grain fertilizer respectively apply urea 7-8, 4-5 kg ​​/ mu; (3) production level 650 kg / mu or more, formula fertilizer The recommended dosage is 40-46 kg/mu, and the fertilizer and panicle fertilizer are applied to urea 8-9, 5-6 kg/mu, and the grain fertilizer is applied to 1-3 kg/mu of potassium chloride; (4) the output level is 450 kg. Below / a mu, the recommended dosage of formula fertilizer is 21-27 kg/mu, and the fertilizers for splitting and the grain of corn are applied 4-6, 3-4 kg/mu respectively.
2.2 Single-double-season rice area in the middle reaches of the Yangtze River 2.2.1 Early rice 2.2.1.1 Medium-low concentration formula fertilizer formula Recommended formula: 12-10-7 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 350-450 kg/mu, the recommended dosage of formula fertilizer is 39-50 kg/mu, and the fertilizer is divided into 5-7, 3-4 kg/mu, respectively; The level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 50-61 kg/mu, and the fertilizer is divided into 7-8, 4-5 kg/mu, respectively; (3) the output level is 550 kg/mu or more. The recommended dosage of formula fertilizer is 61-72 kg/mu, and the fertilizer is divided into 8-9, 5-6 kg/mu, respectively. (4) The yield level is below 350 kg/mu, and the recommended dosage of formula fertilizer is 28-39 kg. / mu, sub-fertilizer and ear grain fertilizer respectively apply urea 4-5, 2-3 kg / mu.
2.2.1.2 High-concentration formula fertilizer program Recommended formula: 18-15-10 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 350-450 kg/mu, the recommended dosage of formula fertilizer is 26-33 kg/mu, and the split fertilizer and the ear grain fertilizer are respectively applied with urea 5-7, 3-4 kg/mu; (2) Yield The level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 33-41 kg/mu, and the fertilizer and panicle grain fertilizer are respectively applied with urea 7-8, 4-5 kg/mu; (3) the production level is 550 kg/mu or more. The recommended dosage of formula fertilizer is 41-48 kg/mu, and the fertilizer is divided into 8-9, 5-6 kg/mu, respectively; (4) the yield level is below 350 kg/mu, and the recommended dosage of formula fertilizer is 19-26 kg. / mu, sub-fertilizer and ear grain fertilizer respectively apply urea 4-5, 2-3 kg / mu.
2.2.2 Medium Rice 2.2.2.1 Medium and Low Concentration Formula Fertilizer Scheme Recommended formula: 11-11-9 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 41-50 kg/mu, and the fertilizer is divided into 6-8, 4-5 kg/mu, respectively; The level is 550-650 kg/mu, the recommended dosage of formula fertilizer is 50-59 kg/mu, and the fertilizer is divided into 8-9, 5-6 kg/mu, respectively; (3) the output level is 650 kg/mu or more. The recommended dosage of formula fertilizer is 59-68 kg/mu, and the fertilizers and panicle fertilizers are applied with urea 9-11, 6-7 kg/mu, and the grain fertilizer is applied with potassium chloride 1-3 kg/mu; (4) production level 450 kg / mu or less, the recommended dosage of formula fertilizer is 32-41 kg / mu, and the urea and spike fertilizer are applied 5-6, 3-4 kg/mu, respectively.
2.2.2.2 High-concentration formula fertilizer program Recommended formula: 16-16-13 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 28-34 kg/mu, and the fertilizer is divided into 6-8, 4-5 kg/mu, respectively; The level is 550-650 kg/mu, the recommended dosage of formula fertilizer is 34-41 kg/mu, and the fertilizer is divided into 8-9, 5-6 kg/mu, respectively; (3) the output level is 650 kg/mu or more. The recommended dosage of formula fertilizer is 41-47 kg/mu, and the fertilizers and spike grain fertilizers are applied with urea 9-11, 6-7 kg/mu, and the grain fertilizer is applied with potassium chloride 1-3 kg/mu; (4) yield level 450 kg/mu or less, the recommended dosage of formula fertilizer is 22-28 kg/mu, and the urea and spike fertilizer are applied 5-6, 3-4 kg/mu, respectively.
2.2.3 Late rice 2.2.3.1 medium and low concentration formula solution recommended formula: 12-9-9 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 400-500 kg/mu, the recommended dosage of formula fertilizer is 40-50 kg/mu, and the fertilizer is divided into 6-6, 4-5 kg/mu, respectively; The level is 500-600 kg/mu, the recommended dosage of formula fertilizer is 50-60 kg/mu, and the split fertilizer and panicle fertilizer are respectively applied with urea 7-9, 5-6 kg/mu; (3) the output level is 600 kg/mu or more. The recommended dosage of formula fertilizer is 60-70 kg/mu, and the fertilizer for splitting and the grain of corn are applied 9-10, 6-7 kg/mu, respectively, and the grain fertilizer is applied with 1-3 kg/mu of potassium chloride; (4) Yield level 400 kg / mu or less, the recommended dosage of formula fertilizer is 30-40 kg/mu, and the fertilizers for splitting and the grain of corn are applied 4-6, 3-4 kg/mu respectively.
2.2.3.2 High-concentration formula fertilizer program Recommended formula: 19-13-13 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 400-500 kg/mu, the recommended dosage of formula fertilizer is 28-35 kg/mu, and the split fertilizer and spike grain fertilizer are respectively applied with urea 5-6, 3-4 kg/mu; (2) Yield The level is 500-600 kg/mu, the recommended dosage of formula fertilizer is 35-42 kg/mu, and the fertilizer is divided into 6-8, 4-5 kg/mu, respectively. (3) The output level is 600 kg/mu or more. The recommended dosage of formula fertilizer is 42-49 kg/mu, and the fertilizers and panicle fertilizers are applied with urea 8-9, 5-6 kg/mu, and the grain fertilizer is applied with potassium chloride 1-3 kg/mu; (4) yield level 400 kg/mu or less, the recommended dosage of formula fertilizer is 21-28 kg/mu, and the fertilizer is divided into 4-5 and 3 kg/mu respectively.
2.3 The second-season rice area in the lower reaches of the Yangtze River 2.3.1 medium-low concentration formula fertilizer recommended formula: 12-10-7 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 500-600 kg/mu, the recommended dosage of formula fertilizer is 46-55 kg/mu, and the fertilizer is divided into 13-15, 6-8 kg/mu, respectively; The level is 600-700 kg/mu, the recommended dosage of formula fertilizer is 55-65 kg/mu, and the fertilizer and panicle grain fertilizer are applied with urea 15-18, 8-9 kg/mu, and the grain fertilizer is applied with potassium chloride 1-3 kg. (3) The production level is 700 kg/mu or more, and the recommended dosage of formula fertilizer is 65-74 kg/mu. The fertilizer is applied to the fertilizer and the grain fertilizer is 18-20, 9-10 kg/mu, respectively. Potassium 1-3 kg/mu; (4) The output level is below 500 kg/mu, the recommended dosage of formula fertilizer is 37-46 kg/mu, and the split fertilizer and panicle fertilizer are topdressed with urea 10-13, 5-6 kg/mu respectively. .
2.3.2 High-concentration formula fertilizer program recommended formula: 19-15-11 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 500-600 kg/mu, the recommended dosage of formula fertilizer is 31-37 kg/mu, and the fertilizer is divided into 12-14, 6-7 kg/mu, respectively; The level is 600-700 kg/mu, the recommended dosage of formula fertilizer is 37-43 kg/mu, and the fertilizer and panicle fertilizer are applied separately for urea 14-17, 7-8 kg/mu, and the spike fertilizer is applied with potassium chloride 1-3 kg. (3) The production level is above 700 kg/mu, and the recommended dosage of formula fertilizer is 43-49 kg/mu. The fertilizer is applied to the fertilizer and the grain fertilizer, respectively, 17-19, 8-9 kg/mu, and the grain fertilizer is applied to the chlorine. Potassium 1-3 kg/mu; (4) The production level is below 500 kg/mu, the recommended dosage of formula fertilizer is 25-31 kg/mu, and the split fertilizer and panicle fertilizer are topdressed with urea 10-12, 5-6 kg/mu respectively. .

3 Jiangnan South China single and double season rice area

3.1 Jiangnan hilly mountain single and double season rice area 3.1.1 early rice recommended formula: 19-13-13 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 350-450 kg/mu, the recommended dosage of formula fertilizer is 24-31 kg/mu, and the split fertilizer and panicle fertilizer are applied 5-7, 3-4 kg/mu, respectively; (2) yield The level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 31-38 kg/mu, and the fertilizer is divided into 7-8, 4-5 kg/mu, respectively; (3) the output level is 550 kg/mu or more. The recommended dosage of formula fertilizer is 38-44 kg/mu, and the fertilizer is divided into 8-10, 5-6 kg/mu, respectively; (4) the yield level is below 350 kg/mu, and the recommended dosage of formula fertilizer is 17-24 kg. / mu, sub-fertilizer and ear grain fertilizer respectively apply urea 4-5, 2-3 kg / mu.
3.1.2 Recommended formula for medium rice: 17-14-14 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 28-34 kg/mu, and the fertilizer is divided into 6-7, 4-5 kg/mu, respectively; The level is 550-650 kg/mu, the recommended dosage of formula fertilizer is 34-40 kg/mu, and the fertilizer is divided into 7-9, 5-6 kg/mu, respectively. (3) The output level is 650 kg/mu or more. The recommended dosage of formula fertilizer is 40-47 kg/mu, and the fertilizers for splitting and the grain of corn are applied 9-10, 6-7 kg/mu, respectively, and the grain fertilizer is applied with 1-3 kg/mu of potassium chloride; (4) Yield level 450 kg/mu or less, the recommended dosage of formula fertilizer is 22-28 kg/mu, and the urea and spike fertilizer are applied 5-6, 3-4 kg/mu, respectively.
3.1.3 Recommended formula for late rice: 19-13-13 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) the production level is 350-450 kg/mu, the recommended dosage of formula fertilizer is 24-31 kg/mu, and the split fertilizer and panicle fertilizer are applied 5-7, 3-4 kg/mu, respectively; (2) yield The level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 31-38 kg/mu, and the fertilizer is divided into 7-8, 4-5 kg/mu, respectively; (3) the output level is 550 kg/mu or more. The recommended dosage of formula fertilizer is 38-44 kg/mu, and the fertilizer is divided into 8-10, 5-6 kg/mu, respectively; (4) the yield level is below 350 kg/mu, and the recommended dosage of formula fertilizer is 17-24 kg. / mu, sub-fertilizer and ear grain fertilizer respectively apply urea 4-5, 2-3 kg / mu.
3.2 Hilly double-season rice area in the South China Plain 3.2.1 Early rice recommended formula: 18-12-16 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 350-450 kg/mu, the recommended dosage of formula fertilizer is 26-33 kg/mu, and the split fertilizer and the ear grain fertilizer are respectively applied with urea 5-7, 3-4 kg/mu; (2) Yield The level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 33-41 kg/mu, and the fertilizer and panicle grain fertilizer are respectively applied with urea 7-8, 4-5 kg/mu; (3) the production level is 550 kg/mu or more. The recommended dosage of formula fertilizer is 41-48 kg/mu, and the fertilizer is divided into 8-9, 5-6 kg/mu, respectively; (4) the yield level is below 350 kg/mu, and the recommended dosage of formula fertilizer is 19-26 kg. / mu, sub-fertilizer and ear grain fertilizer respectively apply urea 4-5, 2-3 kg / mu.
3.2.2 Recommended formula for late rice: 18-12-16 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 350-450 kg/mu, the recommended dosage of formula fertilizer is 26-33 kg/mu, and the split fertilizer and the ear grain fertilizer are respectively applied with urea 5-7, 3-4 kg/mu; (2) Yield The level is 450-550 kg/mu, the recommended dosage of formula fertilizer is 33-41 kg/mu, and the fertilizer and panicle grain fertilizer are respectively applied with urea 7-8, 4-5 kg/mu; (3) the production level is 550 kg/mu or more. The recommended dosage of formula fertilizer is 41-48 kg/mu, and the fertilizer is divided into 8-9, 5-6 kg/mu, respectively; (4) the yield level is below 350 kg/mu, and the recommended dosage of formula fertilizer is 19-26 kg. / mu, sub-fertilizer and ear grain fertilizer respectively apply urea 4-5, 2-3 kg / mu.

4 Southwestern plateau mountain single-season rice area

Recommended formula: 17-13-15 (N-P2O5-K2O) or similar formula.
Fertilization recommendations: (1) The production level is 400-500 kg/mu, the recommended dosage of formula fertilizer is 26-33 kg/mu, and the fertilizer is divided into 6-7, 4-5 kg/mu, respectively; The level is 500-600 kg/mu, the recommended dosage of formula fertilizer is 33-39 kg/mu, and the fertilizer is divided into 7-8, 5-6 kg/mu, respectively; (3) the output level is 600 kg/mu or more. The recommended dosage of formula fertilizer is 39-46 kg/mu, and the fertilizers for splitting and the grain of corn are applied 8-10, 6-7 kg/mu, respectively, and the grain fertilizer is applied with 1-3 kg/mu of potassium chloride; (4) Yield level 400 kg/mu or less, the recommended dosage of formula fertilizer is 20-26 kg/mu, and the fertilizers for splitting and the grain of corn are applied 4-6, 3-4 kg/mu, respectively.


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