1. Spring wheat
Including central Inner Mongolia Autonomous Region, northern Ningxia Hui Autonomous Region, central and western Gansu Province, eastern Qinghai Province and Xinjiang Uygur Autonomous Region.
(1) The principle of fertilization
1. According to climatic conditions and soil fertility, determine the target yield, optimize the input of nitrogen and phosphorus fertilizers, apply potassium fertilizers reasonably, and supplement micro-fertilizers in an appropriate amount based on soil nutrient conditions.
2. Encourage the full amount of straw to be returned to the field, increase the application of organic fertilizer, and combine organic and inorganic to improve soil fertility, increase production and improve quality.
3. Combine nitrogen, phosphorus and potassium, apply base fertilizer early, and apply top dressing skillfully. Strictly control the application of basal fertilizer and the quality of sowing to ensure that the seedlings are neat, complete and strong. Timely topdressing can prevent wheat from overly prosperous and lodging in the early stage, and de-fertilization and yield reduction in the later stage.
4. The organic combination of top dressing and irrigation. Use water and fertilizer integration or top dressing before irrigation, and spray zinc, boron and other trace element fertilizers at the booting stage.
(2) Fertilization suggestion
1. Recommend 17-18-10 (N-P2O5-K2O) or similar formula, and increase the application of farmyard manure by 2-3 cubic meters/mu where conditions permit.
2. The yield level is less than 300 kg/mu, the basic fertilizer is 25-30 kg/mu, and the top-dressing urea is 6-8 kg/mu combined with irrigation from the rising period to the jointing period.
3. The output level is 300-400 kg/mu, the base fertilizer is 30-35 kg/mu, and the top-dressing urea is 8-10 kg/mu combined with irrigation from the rising period to the jointing period.
4. The yield level is 400-500 kg/mu, the base fertilizer is 35-40 kg/mu, and the top-dressing urea is 10-12 kg/mu combined with irrigation from the rising period to the jointing period.
5. The output level is 500-600 kg/mu, the base fertilizer is 40-45 kg/mu, and the top-dressing urea is 12-14 kg/mu combined with irrigation from the rising period to the jointing period.
6. The yield level is more than 600 kg/mu, the basic fertilizer is 45-50 kg/mu, and the top-dressing urea is 14-16 kg/mu combined with irrigation from the rising period to the jointing period.
2. Potatoes
(1) The first potato cropping area in the north
Including Inner Mongolia Autonomous Region, Gansu Province, Ningxia Hui Autonomous Region, Hebei Province, Shanxi Province, Shaanxi Province, Qinghai Province, Xinjiang Uygur Autonomous Region.
1. The principle of fertilization
(1) Determine the reasonable amount of nitrogen, phosphorus and potassium fertilizers based on the results of soil testing and the target yield.
(2) Reduce the ratio of basic nitrogen fertilizer application, appropriately increase the number of topdressing, and strengthen the supply of nitrogen fertilizer in the tuber formation period and tuber expansion period.
(3) According to the soil nutrient status, medium and trace element fertilizers are sprayed on the foliage during the vigorous growth period of the potato.
(4) Increase the application of organic fertilizers, and apply organic and inorganic fertilizers in combination. If organic fertilizers are used as base fertilizers, the amount of chemical fertilizers can be reduced as appropriate.
(5) Combination of fertilizer application and control of pests and weeds, special attention should be paid to disease control.
(6) For plots with conditions such as drip irrigation and sprinkler irrigation, water and fertilizer integration should be implemented.
2. Fertilization advice
(1) For dry land with a yield level of less than 1000 kg/mu, it is recommended to apply 19-10-16 (N-P2O5-K2O) or a formula fertilizer with a similar formula of 35-40 kg/mu. One-time application during sowing.
(2) For irrigated land with a yield level of 1000-2000 kg/mu, it is recommended to apply formula fertilizer (11-18-16) 40 kg/mu, topdressing urea 8-12 kg/mu from seedling stage to tuber expansion stage, Potassium sulfate 5-7 kg/mu.
(3) For irrigated land with a yield level of 2000-3000 kg/mu, it is recommended to apply formula fertilizer (11-18-16) 50 kg/mu as seed fertilizer, and topdressing urea 15-18 kg/mu in stages from seedling stage to tuber expansion stage Mu, potassium sulfate 7-10 kg / mu.
(4) For irrigated land with a yield level of more than 3000 kg/mu, it is recommended to apply formula fertilizer (11-18-16) 60 kg/mu as seed fertilizer, and topdressing urea 20-22 kg/mu in stages from seedling stage to tuber expansion stage , Potassium sulfate 10-13 kg/mu.
(2) Southern Spring Potato Area
Including Yunnan Province, Guizhou Province, Guangxi Zhuang Autonomous Region, Guangdong Province, Hunan Province, Sichuan Province, and Chongqing City.
Fertilization Recommendations
(1) 13-15-17 (N-P2O5-K2O) or similar formula is recommended as base fertilizer, and urea and potassium sulfate (or nitrogen-potassium compound fertilizer) are used as top-dressing fertilizer; 15-5-20 or similar formula can also be selected as top-dressing fertilizer.
(2) The yield level is less than 1500 kg/mu, and it is recommended to apply formula fertilizer 40 kg/mu as base fertilizer; topdressing 3-5 kg/mu of urea and 4-5 kg/mu of potassium sulfate from seedling stage to tuber expansion stage, or topdressing Apply formula fertilizer (15-5-20) 10 kg/mu.
(3) The yield level is 1500-2000 kg/mu, and the recommended base fertilizer is 40 kg/mu of formula fertilizer; topdressing 5-10 kg/mu of urea and 5-10 kg/mu of potassium sulfate from seedling stage to tuber expansion stage, or Topdressing formula fertilizer (15-5-20) 10-15 kg/mu.
(4) The yield level is 2000-3000 kg/mu, and the recommended base fertilizer is 50 kg/mu of formula fertilizer; topdressing 5-10 kg/mu of urea and 8-12 kg/mu of potassium sulfate from seedling stage to tuber expansion stage, or Topdressing formula fertilizer (15-5-20) 15-20 kg/mu.
(5) The yield level is more than 3000 kg/mu, and it is recommended to apply formula fertilizer 60 kg/mu as base fertilizer; topdressing urea 10-15 kg/mu and potassium sulfate 10-15 kg/mu in stages from seedling stage to tuber expansion stage, or topdressing Apply formula fertilizer (15-5-20) 20-25 kg/mu.
(6) Apply 200-500 kg of commercial organic fertilizer or 2-3 square meters of decomposed farmyard manure per mu as base fertilizer; according to the application amount of organic fertilizer, the amount of chemical fertilizer can be reduced as appropriate.
(7) For boron-deficient or zinc-deficient soils, 1 kg/mu of borax or 1 kg/mu of zinc sulfate can be applied.
Post time: Apr-19-2022