Method for enhancing drought resistance of festuca arundinacea by adopting domesticated plant seeds
A technology of plant seeds and tall fescue, applied in the directions of botanical equipment and methods, application, climate change adaptation, etc., can solve problems such as no literature reports
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Embodiment 1
[0045] (1) Preliminary preparation: Domestic waste compost comes from Tianjin Xiaodian Composting Plant. The basic physical and chemical properties are: pH 7.62, saturated water content 0.76ml / g, bulk density 0.85g / ml, total nitrogen 5.18%, available phosphorus 77.92mg / kg , organic matter 12.12%. Tall fescue (Festuca arundinacea L.) was selected as the lawn plant.
[0046] The soil of the experimental field is a loamy meadow soil with fertile soil and uniform soil fertility. The test area is 10×22m 2 , after fully preparing the ground, spread the domestic waste compost with a total weight of 50t on the experimental ground, and then press it to make the compost compact and flat, and the average thickness of the compost matrix is 20cm. The sowing method is spring sowing, and the seeds germinate under the condition of proper amount of watering, and the seedlings begin to emerge after one week, and the emergence is basically stable after 40 days.
[0047] Index determination ...
Embodiment 2
[0052] The preliminary preparation is the same as in Example 1.
[0053] The above-mentioned domesticated tall fescue seeds were selected as experimental materials, and the properties of the soil required for cultivation were: pH 7.44, organic matter content 4.68%, total nitrogen 0.21%, available phosphorus 22.03mg·kg -1 , saturated water content 0.58ml.g -1 . Plastic pots were used for pot experiments. The soil substrate in each pot was 200g, the sowing amount of tall fescue was 0.8g, and the soil was repeated 3 times. The control temperature is 22°C and the relative humidity is 35%. At the beginning of sowing, each pot was fully watered to ensure the smooth germination of the seeds and the initial growth of the seedlings; two weeks later, water was given quantitatively according to the degree of water stress, reaching 60% of the field water capacity (severe drought stress), and the experimental period was 38 days. The plant height was measured, and 3 plants were determin...
Embodiment 3
[0055] The preliminary preparation is the same as in Example 1.
[0056] The above-mentioned domesticated tall fescue seeds were selected as experimental materials, and the properties of the soil required for cultivation were: pH 7.44, organic matter content 4.68%, total nitrogen 0.21%, available phosphorus 22.03mg·kg -1 , saturated water content 0.58ml.g -1 . The pot test adopts a plastic pot with a diameter of 7 cm and a height of 10 cm. The soil matrix in each pot was 200g, the sowing rate of tall fescue was 1g, and the soil was repeated 3 times. The control temperature is 26°C and the relative humidity is 30%. At the beginning of sowing, each pot was fully watered to ensure the smooth germination of the seeds and the initial growth of the seedlings; two weeks later, water was given quantitatively according to the degree of water stress, reaching 65% of the field water capacity (severe drought stress), and the experimental period was 38 days. The plant height was measur...
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