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First, growth habits like cool, sunny, avoid hot, slightly shade-tolerant. Deep rooting, few nodules. Soils with deep, fertile, well-drained acidic sandy loam soils (pH 5.5) are required, and plant growth in neutral and slightly alkaline soils is poor.
Second, the reproduction of lupin in the production of more than sowing propagation, spring and autumn can be broadcast, spring sowing in March, but the spring season after the growth period is positive in summer, affected by high temperature and heat, can cause some varieties of flowering or flowering plants, the proportion of low spikes The viewing effect is poor. Under natural conditions, sowing in spring is better than spring sowing and it is growing well. It is planted from mid-October to mid-October and the flowering season is from April to June. 72-hole or 128-hole plug-in on-demand coverage. The nursery soil should be loose and even, breathable and water-retaining, and the special nursery soil or the peat soil and perlite should be used as a mixture. Seeds larger, common or coated, about 40/g. The germination temperature is about 25°C to ensure that the medium is moist and the seeds germinate in 7 to 10 days. The germination rate is high.
Third, the cultivation and management of lupin seedlings 30 to 35 days, until the true leaves fully spread after transplanting seedlings. Lupin has a well-developed root system and retains the original soil when transplanted to promote seedlings. Before planting, depending on the growing situation, one or two times of pots should be changed. The pots are best used for high pots to meet the growing needs of roots and determine the reasonable planting density. For autumn planting, winterization measures should be taken when wintering is over, and the temperature should be above 5 degrees Celsius to avoid freezing damage to the leaves, affecting the early vegetative growth and ornamental effects. Lupins are cool and cool, and they themselves belong to perennial plants. Therefore, special attention should be paid to the management during high temperatures in summer to prevent yellowing, short stature and even death of leaves caused by high temperature and humidity. In garden applications, it is also possible to plant the flowering lupins directly under a forest tree, in a cool, ventilated place, and to facilitate summer management. After the potted plants are planted, we must cut off the remaining spikes and old leaves in time, control the fertilizer and water, and do a good job of shading protection during the high-temperature period to ensure safe summerization.
IV. Adjustment of soil pH Based on the growth habit of lupine, controlling and adjusting the pH (pH) of the cultivation substrate during the cultivation process is essential for the normal growth and flowering of lupine. Under normal circumstances, a relatively simple and effective adjustment method is to apply sulphur powder to the culture substrate. Since sulphur needs to be decomposed in the matrix for a certain time (about 40 days or more), it can be used as soon as possible, and the application should be carried out as soon as possible, usually after transplanting. When 2 to 3 true leaves appear, the application amount depends on the original pH of the cultivation substrate. In addition, acidic fertilizers such as ferrous sulfate and aluminum sulfate have the effect of lowering the pH value in the short term, but excessively high salt ion concentration may cause poisoning to the plant roots, and it is less used in production.
Fifth, disease prevention Lupin leaf spot lesions are brown to black, damage the growth of leaves and stems, leading to premature death of the leaves, available carbendazim WP spray 1500 times, the effect is good.
Six, related species
1. Gallery - lupinus gallery Plant compact dwarf varieties, also the market's newly cultivated early flower varieties, height 50 to 60 cm, flower spikes neat and robust, can open up to 12 flower swords, rich colors (red, pink, yellow, Blue, white, five colors, January and February sowing can be flowering in the year, spring and autumn sowing can be suitable for potted plants.
2. With -lupinus russell hybrids high-type varieties, height 100 ~ 130 cm, late flowering, strong growth, color, suitable for open field planting and perennial viewing.
Seventh, gardening application
1. The emergence of well-proportioned, leafy dwarf species in potted ornamental plants broadens the marketing scope of lupins and gives them a chance to enter ordinary families. With the special implied meaning it believes, people will double their love for them. .
2. Flower arrangement The use of abundant plant materials has always been an important material created by the masters of the floristry. With the ever-increasing planting of lupin, its use value as a cut flower has gradually been noticed and discovered by people, and the production of cut flowers has been realized.
3. Garden Use Lupin's special plant morphology and abundant inflorescence color are rare materials for landscape plant landscapes. They are used as flower borders and forest edge river banks and plants, which will give people a kind of vision. Exotic and different kind of enjoyment, which is increasingly accepted and respected by professionals.
Lupin cultivation guide
Lubinghua Lupinus polyphyllus lindl, lupinus lupinus. Leguminous Lupinus, native to western North America, later spread to Europe. Herbs perennial, palmately compound, mostly inserted at base, leaflets 10 to 17, lanceolate to oblanceolate, leaf thick, leaf surface smooth, abaxially with coarse hairs. Racemes terminal, height 40 to 60 cm, minaret-type, rich and colorful flowers, common red, yellow, blue, pink, etc., 2 small flowers bracts, lip-shaped, side upright, edge back roll; keel bent. The pods are 3 to 4 cm long, with large seeds, brown brilliance, and oblate shapes. There are more horticultural cultivars.