Method for improving survival rate of salt-tolerant oilseed rape in saline-alkali soil

A technology of saline-alkali land and survival rate, which is applied in the direction of soil preparation methods, botany equipment and methods, and fertilizers made from biological waste, can solve problems such as difficulty in absorbing water and nutrients by plant roots, difficulty in agricultural production in saline-alkali land, and damage to water metabolism. The root system development of aerated plants, easy to promote, and the effect of increasing the aggregate structure

Inactive Publication Date: 2015-04-15
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in saline-alkali areas, due to excessive salt accumulation in the soil, it is very difficult for plant roots to absorb water and nutrients, which destroys the normal water metabolism in plants, causing physiological phenomena such as drought, wilting, or growth stop, or even death, which brings great harm to agricultural production in saline-alkali land. come with considerable difficulty

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The saline-alkali land with a salt content of 0.5% to 0.8% in the cultivated layer (0‐20cm) is used as a van surface, and drainage ditches are excavated longitudinally. The distance between the ditch and the central axis of the ditch is 300cm, and the depth of the drainage ditch is 45cm. Make a ridge on the surface of each compartment, the height of the ridge is 15cm, and the width of the ridge is 25cm. On the ridge, use a hoe to dig a small pit shallowly, put the roots of Nanyanyou No. 1 rapeseed obliquely, and use a small Slightly compact the root neck of the rape seedlings with the soil block, cover the roots with soil or soil blocks, and transplant the rape seedlings on the ridge. The special bio-organic fertilizer used is composed of the following raw materials in parts by weight: 26 parts by weight of edible fungus waste, 25 parts by weight of poultry manure, 2 parts by weight of organic material starter, and 8 parts by weight of microbial active substances. The e...

Embodiment 2

[0021] The saline-alkali land with a salinity of 0.5% to 0.8% in the cultivated layer (0‐20cm) is made into a van surface, and drainage ditches are excavated longitudinally. The distance between the ditch and the central axis of the ditch is 400cm, and the depth of the drainage ditch is 45cm. Make a ridge on the surface of each compartment. The height of the ridge is 15cm, and the width of the ridge is 30cm. Slightly compact the root neck of the rape seedlings with the soil block, cover the roots with soil or soil blocks, and transplant the rape seedlings on the ridge. The special bio-organic fertilizer used is composed of the following raw materials by weight: 35 parts by weight of edible fungus waste, 25 parts by weight of poultry manure, 6 parts by weight of organic material starter, and 10 parts by weight of microbial active substances. The edible fungus waste is nutrient-rich fungus chaff obtained by cultivating Pleurotus ostreatus and Pteris edodes with fibrous materials...

Embodiment 3

[0023]The saline-alkali land with a salt content of 0.5% to 0.8% in the cultivated layer (0‐20cm) is made into a van surface, and drainage ditches are excavated longitudinally. The distance between the ditch and the central axis of the ditch is 300cm, and the depth of the drainage ditch is 50cm. Make a ridge on the surface of each compartment. The height of the ridge is 20cm, and the width of the ridge is 25cm. Slightly compact the root neck of the rape seedlings with the soil block, cover the roots with soil or soil blocks, and transplant the rape seedlings on the ridge. The selected saline-alkali-resistant plant variety is Nanyanyou No. 1, and the special bio-organic fertilizer used is composed of the following raw materials by weight: 35 parts by weight of edible fungus waste, 30 parts by weight of poultry manure, and 6 parts by weight of organic material starter , 10 parts by weight of microbial active substances. The edible fungus waste is nutrient-rich fungus chaff obta...

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Abstract

The invention discloses a method for improving survival rate of salt-tolerant oilseed rape in saline-alkali soil. The method is characterized in that a seeding bed is properly raised according to the underwater level and saline alkaline degree of the saline-alkali soil; salt is discharged through an open trench along with water; the variety of salt-tolerant oilseed rape is selected; then bio-organic fertilizer is applied. The method is a method for cultivating crops in the saline-alkali soil, and is simple to operate, low in cost, and easy to be popularized; the seeding bed is raised to drain water timely, so that the salt discharging efficiency can be increased, and an ecological environment suitable for plant living is created.. With the adoption of the method, the survival rate of the salt-tolerant oilseed rape in severe saline-alkali soil (containing 0.5 to 0.8% of salt content) is effectively improved and is more than 95%.

Description

technical field [0001] The invention belongs to the field of crop cultivation in saline-alkali land, in particular to a method for improving the survival rate of salt-tolerant rape in saline-alkali land. Background technique [0002] Saline-alkali soil refers to those soils with high salt content and pH greater than 9, which make it difficult to grow plants, especially crops. According to the amount of salt and alkali contained, it can be further divided into mild (0.1%-0.25%), moderate (0.25%-0.5%) and severe saline-alkali land (0.5%-0.6%). The formation of saline-alkali land is often the result of the joint action of many aspects. If the soil itself contains more minerals, these minerals will easily become the source of saline-alkali accumulation after weathering. Groundwater also plays a big role, and groundwater always contains salt. When the groundwater level is high and the area is relatively dry, the groundwater will evaporate due to capillarity, and the salt will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00C05F15/00C05F17/00
CPCA01B79/00A01G22/00C05C11/00C05F3/00C05F9/04C05F11/00C05F11/10C05F5/00C05F11/08C05F17/00Y02W30/40
Inventor 隆小华刘兆普
Owner NANJING AGRICULTURAL UNIVERSITY
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