Ratio of nitrogen, phosphorus and potassium in Rice Base Fertilizer

The ratio of nitrogen, phosphorus and potassium in rice base fertilizer is 2 to 1. 2. Of course, the land fertility in different areas is different, or the amount of phosphorus, nitrogen and potassium fertilizer should be determined according to the content of phosphorus, potassium and nitrogen in the local soil. In addition, when fertilizing rice, we should pay attention to the method, dosage and time of fertilization, which are described in detail as follows:

1. Fertilization techniques for rice:

1. We should pay attention to the methods when applying fertilizer, first of all, we should pay attention to the growth of rice and judge whether it is necessary to apply fertilizer or not according to different growth conditions. If fertilizing too early will cause too fast growth, useless rice seedlings will increase, but fertilization too late will easily lead to malnutrition and many other diseases, at the same time, rice may not be able to adapt to this degree of fertility and seedling fall.

two。 Pay attention to the amount of fertilizer, which needs to be fertilized according to the fertility of the paddy field and the growth of rice, usually using eight kilograms of compound fertilizer or six kilograms of urea per mu. Spray as much as possible when fertilizing, and add a little washing powder to the fertilizer solution to prevent the fertility from evaporating.

Second, the fertilization time of rice

1. Base fertilizer: applied to the soil before rice transplanting.

two。 Tillering fertilizer: applied half a month after transplanting or transplanting

3. Panicle fertilizer: panicle fertilizer is divided into flower-promoting fertilizer and flower-protecting fertilizer, the former is applied from the panicle axis differentiation stage to the spikelet differentiation stage, and the latter is applied before the pollen cell meiosis stage.

4. Foliar topdressing: during seedling growth, topdressing was applied at 1.5 leaf stage, 2.5 leaf stage and transplanting stage (three belts before transplanting).

When fertilizing rice, measures must be taken according to local conditions, depending on the specific situation. Do not apply and apply blindly, so as to avoid uneven growth, fat damage and so on.