In winter, day lily is good for the growth of day lily. Topdressing winter fertilizer and custom soil. It is the two basic tasks of managing lily well in winter. Second, the amount of fertilizer must be sufficient. Normally, it uses perishable human and animal manure 1500-2000 kg, or 500 kg of human waste, or 2000- 2500 kg of heap fertilizer, with the appropriate amount of phosphate fertilizer, and the best combination of phosphorus fertilizer and organic fertilizer in more than half a month. The fourth is about fertilizing methods. Should be 10 to 13 cm in the internodes or interline spacing of day lily, open a deep hole, 17-20 cm wide, 13-20 cm deep.
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There are four key points in day lily to catch winter fertilizer. One is to master the time. It is advisable to stop the growth of the above-ground part of day lily, that is, after the fall of the autumn seedlings withered. Second, fertilization should be dominated by organic fertilizers. After day lily enters the winter, the absorption capacity of the roots is greatly weakened, and the nutrients of the organic fertilizers decompose slowly. The application of organic fertilizers is conducive to the long-term absorption of day lily, and sufficient stocks for the autumn seedlings to be stocked.
The root system of lily is from the shortening of the stem section, with a bottom-up, one-story layer, gradually increasing the root position. After the day lily has entered its plentiful period, the growth of the root system is very advanced. If the soil is not cultivated in the native soil, the root system will reveal the soil surface. In this way, the absorption function and drought resistance of the root system can be greatly reduced, and the yield can be significantly reduced. The cultivars generally start after the autumn seedlings wither and end before the end of Osamu. The method of cultivating oysters is to first pluck out the withered autumn seedlings, disinfect the carbendazim solution once more, then apply the winter fertilizer as planned, and select fertile pond mud, river mud and other mud heaps. Apply to the tussocks and paved between rows and thicken the soil to improve the soil in the garden. Before the spring sprouts sprouted, the soil at the top of the scattered clusters was cultivated around the clusters. Native soil cultivation is only suitable for day lily, and the young plant cluster should not be carried out so as not to affect the tillering power. However, it is possible to use the guest soil to lay between the rows to improve the soil. 