Method for improving salt resistance of alfalfa

An alfalfa and salt-tolerant technology, which is applied in the direction of soil preparation methods, botany equipment and methods, ammonium salt fertilizer, etc., can solve the problems of poor stable development of animal husbandry, restrictions on the development of alfalfa industry, inhibition of alfalfa growth, etc., and achieve an increase in relative growth rate , reduce malondialdehyde and soluble protein content, improve the effect of salt tolerance

Inactive Publication Date: 2017-06-09
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the stress of salt, the growth of alfalfa is inhibited, and the yield is significantly reduced, which seriously restricts the develop

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The application of betaine in artificially controlled environment in greenhouse improves the salt tolerance of alfalfa, the main steps are as follows:

[0039] 1. Alfalfa planting

[0040] Alfalfa variety 'Salt Tolerant Star' was selected as material, sown in plastic cups with fine sand (upper diameter 6.8 cm, lower diameter 4.8 cm, height 7.4 cm), covered with sand 1 cm after sowing, covered with three layers of toilet paper, Pour 1 / 2 Hoagland nutrient solution, keep it moist until seedlings emerge, and place them in an artificially controllable greenhouse for cultivation. The temperature is 25°C during the day, 20°C at night, the light time is 16h, the humidity is 50%, and the light intensity is 600μmol / m 2 ·s.

[0041] 2. Determination of the optimal application concentration of betaine

[0042] When the alfalfa grows to the seedling age of 45 days, take out the alfalfa, wash the sand, and transfer it to a 250mL Erlenmeyer flask. The triangular flask is filled wit...

Embodiment 2

[0045] The application of betaine in the natural environment of the field improves the salt tolerance of alfalfa, and the operation steps are as follows:

[0046] Choose an alfalfa variety with strong salt tolerance - Salt Tolerant Star. Dig drainage ditches around the plot to ensure smooth drainage of the plot. Plow the soil more than 35cm deep, and apply wheat straw (at 3.0kg / m 2 count). Apply 1500kg of organic fertilizer (cow dung) per mu, 10kg of urea, 75kg of superphosphate, 30kg of potassium sulfate, 4kg of magnesium sulfate, 1.0kg of zinc sulfate monohydrate, 1.0kg of borax, 7.5g of ammonium molybdate, 10cm of rotary tillage, rake in time flat;

[0047] On August 25, the seeds were artificially removed from impurities and mixed with rhizobia agent (powder, 5g rhizobium per kilogram of seed dosage) for seed dressing. On the same day, the seeds were sown and drilled. The sowing rate was 1.2kg per mu, and the row spacing was 30cm. Depth 2cm;

[0048] On the 3rd day af...

Embodiment 3

[0051] The application of betaine in the natural environment of the field improves the salt tolerance of alfalfa, and the operation steps are as follows:

[0052]Alfalfa variety Zhongmi No.1 with strong salt tolerance was selected. Dig drainage ditches around the plot to ensure smooth drainage of the plot. Plow the soil more than 35cm deep, and apply rice straw (at 3.0kg / m 2 count). Apply 1500kg of organic fertilizer (pig manure) per mu, 10kg of urea, 75kg of superphosphate, 30kg of potassium sulfate, 4kg of magnesium sulfate, 1.0kg of zinc sulfate monohydrate, 1.0kg of borax, 7.5g of ammonium molybdate, 10cm of rotary tillage, and rake in time flat;

[0053] On August 25, the seeds were artificially removed from impurities and mixed with rhizobia agent (powder, 5g rhizobium per kilogram of seed dosage) for seed dressing. On the same day, the seeds were sown and drilled. The sowing rate was 1.2kg per mu, and the row spacing was 30cm. Depth 2cm;

[0054] On the 3rd day aft...

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Abstract

The invention relates to the technical field of saline-alkali soil development and utilization and provides a method for improving salt resistance of alfalfa. The method comprises the following specific steps: (1) planting alfalfa, namely A, selecting seeds; B, performing soil treatment; C, seeding; (2) performing cultivation management, namely A, applying glycine betaine solution to roots, preparing the glycine betaine solution into a concentration of 5mmol/L, and applying at the seedling stage according to an amount of 100kg per mu; B, performing irrigation and fertilization, and fertilizing and irrigating at the critical growing stage. According to the method disclosed by the invention, multiple salt controlling and inhibiting agronomic measures such as selection of salt-resistant varieties, deep cultivation, deep cultivation and turnover of straws, balanced fertilization and the like are taken together, the technology of applying the glycine betaine to the roots is combined, the salt resistance of the alfalfa is effectively improved, and the method is easy and convenient to operate, fast in efficacy, high in operability, low in cost and capable of effectively promoting alfalfa production increase in the saline-alkali soil.

Description

technical field [0001] The invention relates to the technical field of development and utilization of saline-alkali land, and provides a method for improving the salt-tolerant ability of alfalfa. Background technique [0002] Soil salinization is a major adversity limiting crop production globally, with approximately 950 million ha 2 The soil in the world is threatened by salinization, accounting for about 5% of the world's arable land, especially with the increasing trend of global warming, the problem of soil salinization in middle and low latitudes is becoming more and more obvious. As an important reserve land resource available for development and utilization, saline-alkali land has far-reaching significance for its development and utilization. The saline-alkali land in the Yellow River Delta has low production efficiency and low land quality. A large amount of land resources are wasted due to barrenness, resulting in a serious shortage of comprehensive agricultural pr...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05G3/00A01G1/00A01B79/02
CPCA01B79/02A01G22/00C05B1/02C05G5/23C05C3/00C05C9/00C05D1/02C05D5/00C05D9/02
Inventor 娄燕宏晁赢诸葛玉平宋付朋王会
Owner SHANDONG AGRICULTURAL UNIVERSITY
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