How to fertilize super rice

Putian period fertilization. The fertilization in the field should be based on the seedlings as the benchmark, to increase the nitrogen content of the seedling leaves. Appropriate to increase the amount of basal fertilizer. Rice 4 leaf 1 began to give birth at the heart stage, and nitrogen fertilizer was applied at the 2 leaf 1 heart stage to ensure that the nitrogen content of 4 leaf 1 heart was about 4%. Four days before transplanting, body fat should be applied to promote the occurrence of new roots, so that the seedlings will be light when they are plucked, and they will return to green when planted. Honda fertilization. The super rice combination grows in the field for about 120 days, and the dynamics of nitrogen, phosphorus, and potassium in the plant during the growth process should be considered. According to the target output of 750 kilograms per acre, about 11 kilograms of pure nitrogen should be absorbed per acre, about 3 kilograms of phosphorus pentoxide, and about 11.5 kilograms of potassium oxide. Rice fertilization should be based on soil fertilization, to supplement the rice demand for fertilizer. Generally need to apply pure nitrogen 12-13 kg, potassium oxide 12 to 14 kg, phosphorus pentoxide 5 to 6 kg. It is equivalent to standard urea 26.1 to 28.3 kg, superphosphate 41.6 to 50 kg, and potassium chloride 20 to 23.3 kg. In general, super rice basal fertilizer Mushi 6.5 kilograms of pure nitrogen, accounting for 50% of the total nitrogen fertilizer. The basal fertilizer application amount is 50 kg cake fertilizer or 15-20 organic fertilizers, plus 10 kg of urea, 30 kg of superphosphate, and 10 kg of potassium chloride. 5 to 6 days after planting, applying fertilizer. Specific application of 20 kg of compound fertilizer per acre plus 3 ~ 4 kg of urea, potassium chloride per acre applied 10 kg. Panicle fertilizer can be applied during the birth of the inverted 2 leaves. This time fertilization should be combined with the climate and the long-term rice yield of about 10 kg of compound fertilizer. For example, if the rice grows stronger, the leaves are straight, the length is suitable, and the sunlight is sufficient. For example, if rice grows more vigorously, leaves are too long, and rainy weather occurs, it may be less or not applied.

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