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Drought-resistant anti-freezing cultivating method for alfalfa

A technology of alfalfa and cultivation method, applied in the directions of planting method, fertilization method, land preparation method, etc., can solve the problems of unstable overwintering rate, freezing injury of alfalfa, etc.

Inactive Publication Date: 2008-01-09
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is true that the blind introduction of foreign alfalfa varieties is the main reason for this loss, but it is an indisputable fact that alfalfa is often damaged by freezing and the wintering rate is unstable when planting local main varieties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Selection of alfalfa varieties:

[0031] To plant alfalfa on the fertile land of Xinhua breeding cattle field in Tongyu County, Jilin Province, the Gongnong No. 1 alfalfa variety with higher yield should be selected;

[0032] 2. Plot selection

[0033] The land for planting alfalfa in the Xinhua Breeding Cattle Farm of Tongyu County, Jilin Province has a relatively high terrain, flat, well-drained, deep soil layer, a pH value of 8.0, and a total soil salt content of less than 0.15%. + The content is 0.05g / kg, and the soil conductivity is 152us / cm;

[0034] 3. Weeding and Fertilization

[0035] After plot selection, use glyphosate to kill weeds, and 14 days after weeding, carry out soil cultivation;

[0036] Fertilization is one-time application of all fertilizers before soil plowing. The fertilizer is mixed with diammonium phosphate compound fertilizer, superphosphate and potassium chloride. The amount of fertilizer applied is 45kg per hectare of N, P 2 o5 180kg,...

Embodiment 2

[0046] 1. Selection of alfalfa varieties:

[0047] In Changling County, Jilin Province, alfalfa is planted in the land with thin soil fertility and heavy salinity, and the Aohan alfalfa variety with low yield, strong salt-alkali tolerance and low price is selected;

[0048] 2. Plot selection

[0049] In Changling County, Jilin Province, the alfalfa planting plots are flat, well-drained, and the soil layer is deep. The soil pH value is 8.6, and the total soil salt content is less than 0.3%. + The content is 0.20g / kg, and the soil conductivity is below 300us / cm;

[0050] 3. Weeding and Fertilization

[0051] After the plot is selected, glyphosate is used to kill weeds, and 12 days after weeding, the soil is plowed; fertilization is one-time application of all fertilizers before soil plowing, and the fertilizers are diammonium phosphate compound fertilizer, superphosphate and potassium chloride. Proportion, the amount of fertilizer applied is 30kg of N and P per hectare. 2 o ...

Embodiment 3

[0061] 1. Selection of alfalfa varieties:

[0062] Alfalfa is planted in Kezuozhong Banner, Inner Mongolia Autonomous Region, and the selected variety is Grassland No. 1 alfalfa;

[0063] 2. Plot selection

[0064] The land for alfalfa planting in Kezuozhong Banner, Inner Mongolia Autonomous Region has a relatively high, flat, and deep soil layer. The soil is sandy loam with a pH value of 7.5. The total salt content of the soil is less than 0.15%, and the Na content of the soil is + The content is 0.08g / kg, and the soil conductivity is 98us / cm;

[0065] 3. Weeding and Fertilization

[0066] After the plot is selected, use the herbicide of agricultural grass to kill the weeds. After 15 days of weeding, the soil is plowed; the fertilizer is applied to all the fertilizers before the soil plowing. The fertilizer is diammonium phosphate compound fertilizer, superphosphate and chlorine. Potassium is used for proportioning, and the amount of fertilizer applied is 35kg per hectare ...

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Abstract

The present invention belongs to the field of pasture plant cultication technology, in the concrete, it relates to a cultivation method capable of raising drought resistance of Lucerne and protecting Lucerne from winter freezing injury. Said method includes the following steps: selecting cold resistant variety, setecting field, weeding and fertilizer application, ridge forming, ridge-seeding and field management.

Description

technical field [0001] The invention belongs to pasture cultivation methods, and in particular relates to a cultivation method for improving drought resistance of alfalfa and preventing freezing damage of alfalfa in high-latitude cold and arid regions. Background technique [0002] Alfalfa (Medicago sativa L.) is a perennial forage grass of the genus Alfalfa in the family Leguminosae. It is widely cultivated worldwide. It has high grass yield, rich nutrition, good palatability, strong biological nitrogen fixation ability, and wide adaptability. king". In recent years, due to the implementation of national policies such as returning farmland to grassland and adjusting the planting industry structure, alfalfa has been vigorously developed as the first choice feed crop in the country. However, in the vast northern regions of my country, especially in the northeast and eastern Inner Mongolia, where the winter temperature is low, the overwintering rate of alfalfa is unstable, an...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C21/00A01B79/00A01C14/00A01M21/04
Inventor 李志坚王德利贾广和张宝田
Owner NORTHEAST NORMAL UNIVERSITY
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