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How to reasonably determine nitrogen fertilizer application rates in precision quantitative rice cultivation
The quantification of nitrogen needs to consider the fertilizer requirements of high-yield rice, the pattern of soil nitrogen supply, fertilizer characteristics and the current-season utilization rate, as well as various changes during the growth period, and includes two parts: total nitrogen quantification and nitrogen fertilizer application methods. Determination of total nitrogen amount: obtained through soil testing and fertilizer recommendation trials
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Can Liquid Nitrogen Fertilizer Replace Urea? A Clear Comparison of Fertilizer Efficiency
Liquid nitrogen fertilizer is liquid ammonia obtained by pressurizing or cooling gaseous ammonia, and it is widely used as agricultural fertilizer, so can liquid nitrogen fertilizer replace urea? 1. Can liquid nitrogen fertilizer replace urea? Liquid nitrogen fertilizer can replace urea, and it can quickly supplement nitrogen, while
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Nitrogen Fertilizer or Potassium Fertilizer: Which One Makes Fruit Swell Faster? Choose Fertilizer This Way During the Fruit-Swelling Period
Nitrogen fertilizer and potassium fertilizer are sources of nutrient supplementation during plant growth; rational application can make plants grow more luxuriantly. Nitrogen fertilizer or potassium fertilizer: which one makes fruit swell faster? 1. Nitrogen fertilizer or potassium fertilizer: which one makes fruit swell faster Currently the two have not been specifically compared; plant growth
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What is the NPK ratio for fertilizing soybeans?
During the seedling stage of soybeans, applying an appropriate amount of nitrogen fertilizer makes the plants grow stronger; generally, applying 7.5 to 10 kg of urea per mu is suitable. During the flowering stage, spraying a 0.2% to 0.3% aqueous solution of monopotassium phosphate or superphosphate as a foliar spray can increase the nitrogen content of the seeds and has a clear yield-increasing effect.
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What is the NPK ratio for rice basal fertilizer?
The ratio of nitrogen, phosphorus and potassium in rice basal fertilizer is 2:1:1.2. Of course, soil fertility varies from region to region, so the amounts of phosphorus, nitrogen and potassium fertilizer should still be determined according to the phosphorus, potassium and nitrogen content in the local soil. In addition, when fertilizing rice, pay attention to the method and the amount
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What fertilizer is best for pennywort? Choosing the right fertilizer is the key to vigorous growth
For fertilizing pennywort, nitrogen fertilizer is the main choice, with appropriate use of fertilizers containing potassium. Generally, during its peak growing season, apply a top dressing every 2-3 weeks. When applying, you can directly water with diluted fertilizer, or bury the fertilizer in the soil. Pennywort growing methods: 1. Soil preparation Soil prep
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What exactly are the harmful effects of using duck manure?
The organic matter and nitrogen and phosphorus content in duck manure are relatively high, and crops cannot absorb them directly. Fresh duck manure will attract underground pests. Not only does it fail to help crops, but it also slows their growth. How to handle fresh poultry manure 1. Poultry manure mainly refers to
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How to Formulate Base Fertilizer for Cotton? A Detailed Guide to Scientific Ratio Methods
The ratio of base fertilizer (nitrogen, phosphorus and potassium fertilizers) for cotton is generally 1 : 0.3 : 1. According to measurements, a yield of 100 kg of cotton per mu requires the absorption of 12 kg of nitrogen, 4 kg of phosphorus pentoxide and 12 kg of potassium oxide, and the fertilizer requirement is 5-6 times that of cereal crops. In addition, an appropriate amount of compost,
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How many kilograms of nitrogen can 1 mu of soybeans fix? A full analysis of nitrogen fixation capacity
1. How much nitrogen can 1 mu of soybeans fix? Field trials have determined that 1 mu of soybeans can fix about 8 kilograms of nitrogen, equivalent to applying 18 kilograms of urea. Because soybeans have symbiotic nitrogen-fixing rhizobia, through the action of rhizobia they can fix gaseous nitrogen from the air, so generally
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What fertilizer is best for fertilizing roses? A detailed guide to choosing fertilizer
For fertilizing roses, nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer, zinc fertilizer, boron fertilizer and other trace element fertilizers are good. Among these, nitrogen, phosphorus and potassium fertilizers are the most important, and in the early growth stage, fertilizer should be applied at a ratio of 3:1:2 as much as possible, and at a ratio of 3:1:3 during the flowering period. Field management mainly
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