Answer: In the normal year, when the soil injury is good, the first spring water is poured in early April (the ground temperature of 5 cm is stable above 12 degrees Celsius). The second irrigation should be one week before bolting. Later, as the temperature increases, the plants grow vigorously and the amount of evaporation increases. The buds are continuously irrigated until the flowering stage, and the ground is often kept moist. After the flower buds are picked up, pour another water when the drought is three days. Daylily is sensitive to moisture during bolting and bud periods. At this time, water shortage will cause serious yield reduction, indicating that flower stalks are difficult to produce. Although they can sometimes be drawn, the flower buds are small, uneven, high bud drop rate, and weak bud germination. 1. The number of buds is obviously reduced, so it should be irrigated 2 or 3 times in real time according to the soil conditions to avoid a reduction in yield due to drought.
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