Urine mainly contains nitrogen fertilizer ammonia, which is easily absorbed by plants. All kinds of leafy vegetables need nitrogen fertilizer. With nitrogen fertilizer and proper watering, the vegetables grow vigorously, are fresh and tender, have high yield and good quality. However, it should be noted that they must be fermented, only a little at a time, and it is best to do it at the same time as irrigation to avoid burning seedlings.
Matters needing attention in the use of human urine
1, urine water should not be mixed with alkaline fertilizer.
Urine water is acidic. If it is applied at the same time with alkaline fertilizer, there will be a reaction between the two fertilizers, and the fertility of the fertilizer will plummet, wasting the two fertilizers in vain. Therefore, after we drench vegetables with urine, we need to wait about a week before using other alkaline fertilizers, such as plant ash and other alkaline farmyard manure.
2. Human urine should be fermented and diluted before use.
Old people in our village usually save urine for 3 to 7 days. After saving enough, they mention a place to stand for 2 to 3 days. This is fermentation.
Urine is a kind of farmyard manure, and raw urine contains high calories and bacteria. If raw urine is used to drench vegetables, even if it is diluted, it will burn the roots of vegetables, and it will also make vegetables sick, but the severity is different. Only when the urine is naturally fermented, the heat in it will slowly dissipate, and some bacteria will be killed by high heat. At this time, if diluted, vegetables can be prevented from burning seedlings, and even if urine splashes on the leaves, the leaves will not wither.
3. A vegetable field cannot use acidic fertilizers such as urine and water for a long time.
Human urine is acidic. Everyone should know that if an acidic fertilizer such as urine is used for a long time, the soil will be more barren, and the acidic soil will inhibit the growth of vegetables. Therefore, after using urine once or twice, properly sprinkle some plant ash to adjust the soil, so as to avoid the soil in vegetable fields becoming barren.
4. Don't splash it directly on the leaves when using urine to pour vegetables.
Although urine has been fermented and diluted, its concentration is still very high, so when we use urine to pour vegetables, we need to use a urine spoon to pour some into the roots of vegetables.