Method for planting hybrid napiergrass Guimu No.1 in karst region

A karst and regional technology, applied in the fields of botanical equipment and methods, horticulture, application, etc., can solve the problems of grassland community stability and persistent adverse effects, low compensation, etc., to improve photosynthesis capacity, with remarkable effect and wide application. Foreground effect

Inactive Publication Date: 2014-06-04
INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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  • Claims
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AI Technical Summary

Problems solved by technology

In general, with high frequency and heavy mowing of pastures, pastures tend to exhibit low compensation, which will adversely affect the stability and persistence of grassland communities

Method used

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  • Method for planting hybrid napiergrass Guimu No.1 in karst region
  • Method for planting hybrid napiergrass Guimu No.1 in karst region
  • Method for planting hybrid napiergrass Guimu No.1 in karst region

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A method for establishing hybrid elephant grass Guimu No. 1 in karst areas, the steps are:

[0027] (1) Sowing: Select Guimu No. 1 hybrid elephant grass seeds, and sow in late February or early March.

[0028] (2) Fertilization and transplanting: In mid-April, basal fertilizer calcium magnesium phosphate fertilizer (P 2 O 5 The content is 21.8%) 153kg·hm -2 , Potassium chloride fertilizer (K 2 O content is 60%) 306kg·hm -2 ; Around April 20th, select seedlings that grow basically the same for transplanting, with a plant spacing of 60cm, a row spacing of 60cm, and two plants per hole.

[0029] (3) Nitrogen application: topdressing 5 times throughout the year, the first topdressing of nitrogen urea (N46%) in late April, the amount of fertilizer applied is 125kg·hm -2 Apply. The other four times were in early June, late July, early September, and mid-October to apply nitrogen fertilizer urea, each application amount was 250kg·hm -2 , The cumulative nitrogen fertilizer application...

Embodiment 2—9

[0032] A method for establishing hybrid elephant grass Guimu No. 1 in karst areas, the cumulative amount of topdressing nitrogen fertilizer, cutting times and cutting intensity from June to October are shown in the following table (Table 1), and other implementation steps are the same as in Example 1.

[0033] Table 1 The amount of nitrogen, the number of cuttings, and the cutting intensity in Examples 2-9

[0034]

[0035] Note: The nitrogen application rate in the above table is the cumulative nitrogen fertilizer application amount in June, July, September and October in step (3).

[0036] In all the examples, the water needed for the growth of forage grass came from natural rainfall, and no irrigation treatment was performed.

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Abstract

The invention discloses a method for planting hybrid napiergrass Guimu No.1 in the karst region. The method includes the steps that first, seeds are sown in the last ten days of February or the first ten days of March; second, transplanting is performed in April, calcium magnesium phosphate fertilizer is applied as base fertilizer before the transplanting, the planting distance is 60 cm, and the distance between every two rows is 60 cm; third, nitrogenous fertilizer is applied, urea is used as the nitrogenous fertilizer and has the N content of 46 percent, after the transplanting, the nitrogenous fertilizer is added according to the proportion of 125 kg/hm<2> for the first time, the nitrogenous fertilizer is applied in June, July, September and October every year for the second time to the fifth time, and the application amount per time is 125 kg/hm<2> to 375 kg/hm<2>; fourth, the grass is mown, the forage grass is mown two to four times from July to November for a whole year, the mowing time interval is between 35 days to 100 days, and the grass is mown according to the mowing strength with the distance from the mowing portions to the roots of the plants between 5 cm and 35 cm. The method is easy to perform and easy and convenient to operate, the hybrid napiergrass Guimu No.1 is high in photosynthesis capacity, high in yield and good in quality, and the readily available nutrient content of soil is high. Therefore, the method can be taken as the method of the first choice for planting forage grass in the karst region, the grain conflict between people and livestock can be effectively relieved in the karst region, and sustainable development of agriculture is promoted.

Description

Technical field [0001] The invention relates to the technical field of forage establishment and planting, and more specifically to a method for establishment of an excellent forage grass in karst areas-Guimu No. 1 hybrid elephant grass, and is especially suitable for planting in southwestern karst areas. Background technique [0002] The shortage of arable land resources in the karst region of southwest my country, the acute human-land conflicts, coupled with the fragile ecological environment, increasing soil erosion and rocky desertification, and frequent human activities have severely restricted agricultural production in this region. As a feed resource, forage grass plays an extremely important role in the development of modern animal husbandry. Years of practice have proved that introducing suitable forages, developing herbivorous animal husbandry, and saving food with grass are effective ways to alleviate the conflict between humans and livestock for food and promote sustai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
Inventor 彭晚霞宋同清曾馥平何铁光杜虎宋敏
Owner INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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