Management and mulching of plastic Film in the later stage of Lily

I. late-stage management

1) timely pearl harvest should be carried out on a sunny day to prevent breaking the plant and knocking off the upper green leaves.

2) shading and cooling, clearing ditches and reducing humidity and shading is a measure to prevent high temperature. covering rice straw at seedling stage can reduce water evaporation and soil temperature for the later growth of lily.

3) after the harvest of bulbs with increased fertilizer, the leaf color of lily gradually becomes lighter, indicating that nutrients have been out of balance, and nutrients must be increased to prevent premature senescence of lilies. At this time, an appropriate amount of quick-acting chemical fertilizer should be applied. During the flowering period, better results can be obtained by watering lily with 20 kg ammonium bicarbonate per mu. In addition, 0.2% potassium dihydrogen phosphate can also be sprayed on the leaves to meet the needs of phosphorus and potassium in the later stage of the lily.

Second, covering plastic film

Plastic film mulching plays a significant role in increasing soil temperature, increasing accumulated temperature, promoting lily seed root growth during overwintering and early seedling emergence. Due to the early emergence of seedlings, the increase of growth and the advance of growth period, the effect of early maturity and yield can be achieved.

1) the purpose of covering the film is to keep moisture and increase temperature.

2) after uncovering the film or breaking the plastic film, the lily can emerge in early March, which is generally about half a month earlier than that without plastic film. At this point, the film can be uncovered or broken.