The radish has a light-weight-light principle in its application. In the first top dressing, when the seedlings grow 2 true leaves, the human excrement is applied between the rows; the second top dressing chases one person's excrement after the second seedling, and the per-mu is added with superphosphate and potassium sulfate. 5kg. After each fertilizer application, the fruit can be promoted and absorbed. After three times of topdressing of small and medium-sized radishes, the radish roots of the radish will rapidly expand and can no longer be topdressed; the large radish grows long and the ammonium sulfate is applied per acre. 20kg, until the radish grows to the peak period, and then apply the potassium fertilizer such as grass ash once, 100-150kg per mu, and then spray 2%-3% superphosphate and diarrhea in the next week, which has a significant yield increase effect. Enter the continuous sitting period, carry out the third top dressing, apply 5 kg of pure nitrogen and 7 kg of potassium oxide. The second top dressing was carried out at the peak of the growth of the fleshy roots, and 5 kg of pure nitrogen and 7 kg of potassium oxide were applied per mu. For every 1000kg of radish produced, 2.0kg of pure nitrogen, 0.7kg of phosphorus pentoxide and 2.9kg of potassium oxide are needed. 5000kg of radish per mu requires 10kg of pure nitrogen, 3.5kg of phosphorus pentoxide and 14.5kg of potassium oxide.
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