A method for increasing the overwintering rate of Pennisetum
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A technology of pennisetum and overwintering rate, which is applied in the field of introduction, domestication and cultivation of wild pennisetum, can solve the problems such as difficult overwintering rate, achieve the effect of protecting from freezing damage, maintaining humidity and temperature, and improving the overwintering rate
Inactive Publication Date: 2011-12-07
LANZHOU INST OF ANIMAL SCI & VETERINARY PHARMA OF CAAS
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a cultivation technology that can greatly improve the survival rate of Pennisetum overwintering in view of the problems
Method used
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Embodiment 1
[0021] at 15m 2 The area of the plot is taken as an example, sowing time: according to the climate conditions in Lanzhou, in late April every year, when the temperature is stable above 15°C, sowing can be done; site conditions: general cultivated farmland soil is enough, the moisture content of the cultivated layer is 35%, the surface Temperature 15°C. Harvesting time: the first ten days of September for grass mowing, and the second ten days of October for harvesting fields.
[0022] 1. Ditch sowing
[0023] After leveling the land and applying sufficient base fertilizer, ditching is carried out at a row spacing of 90 cm, with a depth of 10 cm and a width of 15 cm. Sow seeds at the bottom of the ditch with a seeding rate of 1.0 kg / mu and a sowing depth of 2 cm.
[0024] 2. Mow stubble
[0025] When cutting and harvesting, leave 10 cm of stubble.
[0026] 3. Cover the roots with soil
[0027] After cutting and harvesting, take the soil between the rows and cover 1 / 2 part...
Embodiment 2
[0031] at 15m 2 Take the plot area as an example, sowing time: According to the climatic conditions in Lanzhou, in late April every year, when the temperature is stable above 15°C, sowing can be done; site conditions: general cultivated farmland soil is enough, the moisture content of the cultivated layer is 40%, the surface The temperature is 25°C. Harvesting time: the first ten days of September for grass mowing, and the second ten days of October for harvesting fields.
[0032] 1. Ditch sowing
[0033] After flattening the land and applying enough base fertilizer, ditch with 90cm row spacing, 10cm deep and 15cm wide, and sow at the bottom of the ditch with a seeding rate of 1.0kg / mu and a sowing depth of 3cm.
[0034] 2. Mow stubble
[0035] When cutting and harvesting, leave 15cm of stubble.
[0036] 3. Cover the roots with soil
[0037] After cutting and harvesting, take the soil between the rows and cover 1 / 2 part of the pennisetum stubble from both sides.
[0038]...
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Abstract
A method for improving the overwintering rate of Pennisetum, which is completed by the following steps: (1) After leveling the land and applying sufficient base fertilizer, ditching is carried out, and sowing is carried out when the temperature is stable above 15°C in late April every year; (2) Leave the stubble when cutting and harvesting; (3) After cutting and harvesting, take the soil between the rows and cover the pennisetum stubble; (4) After the roots are covered with soil, cover the weeds between the stubble rows, and remove the Cover the weeds. The furrowing and sowing method of the present invention can play the role of collecting water at the bottom of the ditch and keeping warm at the bottom of the ditch, increasing the effective utilization rate of irrigation water or rainfall, and increasing the temperature of the soil layer at the root of Pennisetum pennisetum. Covering the roots with soil after harvesting can effectively protect the roots from freezing damage. Covering between ridges can maintain surface soil moisture and temperature. The pennisetum overwintering method of the present invention increases the overwintering rate to over 95%, and effectively solves the technical problem of overwintering in the introduction, popularization and application of Pennisetum genus excellent grass species in western my country.
Description
technical field [0001] The invention relates to the introduction, domestication and cultivation techniques of wild pennisetum. Background technique [0002] Pennisetum ( Pennisetum Rich) forage is a large genus of grasses, with more than 130 species in the world, widely distributed in tropical, subtropical and temperate regions. my country is one of the countries with the richest pennisetum resources, and 8 wild species of pennisetum have been found to be registered: long-order pennisetum, Lanping pennisetum, pasture pennisetum, and dry pennisetum , Medium-sized Pennisetum, Shaanxi Pennisetum, Sichuan Pennisetum and Tibetan Pennisetum are widely distributed in more than a dozen provinces and regions across the country. grass. Domestic pennisetum has the characteristics of early spring, fast planting, and strong competitiveness with weeds. Through rhizome propagation, it is easy to obtain the clones required for genetic breeding; using the characteristics of parthenogenety, ...
Claims
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Application Information
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IPC IPC(8): A01G13/02A01G1/00A01D91/04A01B79/02
Inventor 张怀山
Owner LANZHOU INST OF ANIMAL SCI & VETERINARY PHARMA OF CAAS
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