How to choose the sunflower seed for the old man? What are the methods of raising seedlings?

I don't know if you have ever seen the old sunflower, which is native to southern California in the United States. It is suitable for growing in a warm, moist and sunny environment and is often used as a factory greening tree species. How to choose the sunflower seeds for the old man? What are the methods of raising seedlings? What's the difference between it and Pukui? Let's let the editor tell you!

First, how to choose the sunflower seeds for the elderly?

If plants want to grow well, it is necessary to select high-quality seeds to plant, so as to improve the germination rate, so the old sunflower seeds should be of high quality, and it is best to choose the new species picked in that year, which will be more dynamic and have better germination effect. If you put the seeds in clear water, there are seeds floating above, generally dry grains are not full or spoiled seeds, need to be removed in time, which will reduce the germination rate.

2. Seedling raising methods of sunflower seeds for the elderly

1. How to select seeds to ensure the budding rate of good seeds, to select adult plants with luxuriant leaves to collect seeds, to choose seeds with full and uniform particles and no diseases and insect pests, and to remember not to be cheap and buy old seeds, the germination rate of aged seeds is low.

2. To speed up the germination and wake up the seeds, we should also accelerate the germination of the seeds before sowing so that they can wake up as soon as possible. The seeds of the old sunflower can be soaked in warm water for a day or so and can be sowed after they sprout.

3. choose to sow the soil, the old sunflower does not have high requirements for the soil, but the growth of the seedlings needs soil with sufficient fertilizer and good drainage. Ploughing, raking and clearing large chunks of soil should be carried out before sowing to prevent the seedlings from being pressed.

4. sowing method, using strip sowing method, sowing depth is moderate, keep within 2-3 cm, too deep will inhibit seed sprouting.

What's the difference between the old man Kui and Pukui?

The main results are as follows: 1. There are filaments in the leaf margin of the old sunflower, but not in the sunflower, so it is easier to distinguish them when they blossom and bear fruit.

2. The whole stem of the old sunflower is covered by brown coat and herringbone skin, and the smooth surface of the tree stem is covered with a small amount of brown skin and leaf sheath.

3. The old sunflower stem is not tapering to the top, often with the ring pattern of falling behind leaves; the sunflower stem is tapering from the base to the top, often with small straight stripes.

4. The petiole base of the old sunflower is not split, the palm is dense and encases the stem, the length of the leaf lobes is as long as or longer than the undivided palms; the petiole base of the sunflower is forked, and the browngrass is not conspicuous. The length of the lobes divided by the leaf is shorter than that of the undivided palms.

5. the old sunflower leaves fall off after drying; the inflorescence axis is short and thick, and the flowers are denser, shorter than the leaves and hidden in the leaves, with only one involucral bract. Sunflower leaves often do not fall off after drying, drooping into a skirt; inflorescence axis slender, drooping, longer than leaves and protruding from the leaves, segmented and separated by involucral bracts in each segment.

This is the end of what the editor wants to share with you today. if you want to plant old sunflower, you should choose high quality seeds when selecting seeds. it is best to choose the new species picked that year, which will be more dynamic and have better germination effect. In addition, the seedling method shared by the editor can be collected if you think it is good.

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