One, timely selection, raise enough mother stem, classification management
The year transplanted asparagus plants, each root plate to retain 10 to 15 mother stem (not clear the garden, only to cut off the weak and yellowish branches); more than two years of retention to raise the number of mother stem depending on the year of asparagus planting and the growth of the field. Field growth of healthy without pests and diseases generally do not need to carry out the second stay stem, only need to strengthen the plant and water and fertilizer management. Field plant diseases and pests are serious, especially the stem blight disease is serious need to carry out the second stay stems, fall hair asparagus generally in September began to stay mother stems. Specific retention time, to the whole field shoots out of the ground neatly after the selection of fine weather.
Second, thoroughly clear the garden, remove the disease
For the need to stay in the second stem of the shoot field, asparagus harvest is over, we must clear the garden in a timely manner, to stay in the mother stem, so as not to affect the fall hair. Generally around the middle of September, choose a sunny day to cut all the mother stems on the ground, together with weeds transported out of the field to a place away from the asparagus ground concentrated burned or buried, the soil around the root plate peeled away, let the sun 1 ~ 2 days, the root plate and the surrounding soil disinfection and sterilization, reduce the base of the disease, in order to protect the young stems from harm when they grow.
Three, heavy fall fertilizer, promote stem vigorous development
Re-application of autumn development of rejuvenation fertilizer, is conducive to the promotion of autumn stem vigorous development, to expand the photosynthesis of the plant, the accumulation of more nutrients for the next year to lay a material foundation for the production of the next year. Autumn fertilizer to organic fertilizer-based, required to be applied in the evening or morning spray in the asparagus stems and leaves, in order to enhance the plant, prolong the green period, the accumulation of more nutrients. And timely spraying of strong stem spirit to make the plant stem thick, lush plants. At the same time, it can enhance the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce the residual poison. At the same time, we should strengthen the integrated control of pests and diseases, and spray the new high fat film to enhance the control effect.