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Method for planting sweet sorghum in saline-alkali land in Yellow River delta

A technology of sweet sorghum and saline-alkali land, applied in the field of agricultural planting, can solve problems such as unreasonable proportion, aggravating soil saline-alkali hazards, and affecting crop yield, so as to increase storage rate and utilization rate, avoid secondary salinization of soil, Avoid the effects of frequent soil disturbance

Inactive Publication Date: 2018-10-19
TONGREN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method also has the problems of premature fertilization, large amount of fertilizer and fertilizer ratio that cannot match the demand of sorghum
Premature fertilization causes the effective nutrient release of fertilizers to be out of sync with crop needs, and phosphorus fertilizers are easily fixed in the soil, unable to meet the nutrient needs of crops; excessive fertilization and unreasonable fertilizer ratios not only result in waste of resources and environmental pollution, but also It will cause secondary salinization of soil, aggravate soil saline-alkali damage, and affect crop yield

Method used

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  • Method for planting sweet sorghum in saline-alkali land in Yellow River delta
  • Method for planting sweet sorghum in saline-alkali land in Yellow River delta

Examples

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Embodiment 1

[0023] A method for planting sweet sorghum in the saline-alkali land of the Yellow River Delta, comprising the steps of: desalinating the soil and preparing the soil: diverting water from the Yellow River from mid-late March to late April to desalinate the plow layer soil of the saline-alkali land once, with an irrigation amount of 50mm, and 4 days after irrigation. Level the land every day, that is, when the soil does not stick to the shoes, level the land, prepare for fertilization, and sow within a week; fertilization: the effective amount of fertilizer applied to each mu of soil is 5 kg of pure N fertilizer, P 2 o 5 Add 1000kg / mu of farmyard manure where conditions permit; sowing and mulching: before sowing, sweet sorghum seeds are soaked in clear water for 6-12 hours, the sowing depth is 3-4cm, 2-3 grains are sown in each hole, and the row spacing 55-60cm; after sowing, cover the soil with palladium, step on it, and then immediately cover the soil with film; field managem...

Embodiment 2

[0025] A method for planting sweet sorghum in the saline-alkali land of the Yellow River Delta, comprising the steps of: desalinating the soil and preparing the soil: diverting water from the Yellow River from mid-late March to late April to desalinate the plow layer soil of the saline-alkali land once, with an irrigation amount of 60 mm, and 4 days after irrigation. Level the land every day, that is, when the soil does not stick to the shoes, level the land, prepare for fertilization, and sow seeds within a week; fertilization: the effective amount of fertilizer applied to each mu of soil is 6.5kg of pure N fertilizer, P 2 o 5 Add 2000kg / mu of farmyard manure where conditions permit; Sowing and mulching: Before sowing, sweet sorghum seeds are soaked in clean water for 6-12 hours, the sowing depth is 3-4cm, 2-3 grains are sown in each hole, and the row spacing 55-60cm; after sowing, cover the soil with palladium, step on it, and then immediately cover the soil with film; field...

Embodiment 3

[0027] A method for planting sweet sorghum in the saline-alkali land of the Yellow River Delta, comprising the steps of: desalinating the soil and preparing the soil: diverting water from the Yellow River from mid-late March to late April to desalinate the plow layer soil of the saline-alkali land once, with an irrigation amount of 53 mm, and 4 days after irrigation. Level the land every day, that is, when the soil does not stick to the shoes, level the land, prepare for fertilization, and sow seeds within a week; fertilization: the effective amount of fertilizer applied to each mu of soil is 5.5 kg of pure N fertilizer, P 2 o 5 1300kg / mu of farmyard manure should be applied where conditions permit; sowing and mulching: before sowing, soak sweet sorghum seeds in clear water for 6-12 hours, sow 2-3 grains in each hole at a depth of 3-4cm. The row spacing is 55-60cm; after sowing, cover the soil with palladium, step on it, and then immediately cover the soil with film; field man...

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Abstract

Disclosed is a method for planting sweet sorghum in saline-alkali land in the Yellow River delta. The method comprises the following steps of soil desalination and land preparation, wherein from the middle ten days and last ten days of March to the last ten days of April, Yellow River water is introduced for soil desalination of a plough layer of the saline-alkali land, and the land is leveled onthe fourth day after irrigation; fertilization, wherein the effective amount of pure N fertilizer applied into the soil per mu is 5-6.5 kg, and the effective amount of P2O5 applied into the soil per mu is 4-5 kg; sowing and film mulching, wherein the sowing depth is 3-4 cm, 2-3 seeds are sowed in each hole, the row spacing is 55-60 cm, earthing raking and treading are conducted after sowing, and then film mulching and soil pressing are conducted immediately; field management, wherein when 2-3 leaves grow on the sweet sorghum, thinning or complementary planting of seedlings is conducted, and one seedling is planted in each hole; harvest. By means of the method, the growth and development of the sweet sorghum in the saline-alkali land with the salt content of 0.2-0.8% are promoted, the biomass of the sweet sorghum and the sugar content of target organs are increased to the greatest degree, and raw materials of biomass fuel are high in yield and quality while fertilizer loss, desalinationand synergism are achieved.

Description

technical field [0001] The invention relates to a method for planting sweet sorghum in the saline-alkali land of the Yellow River Delta, belonging to the technical field of agricultural planting. Background technique [0002] Sweet sorghum is an important economic crop and bioenergy crop, known as "the most powerful competitor in the bioenergy system". It belongs to C4 plants (plants whose initial product after absorbing carbon dioxide is the four-carbon compound malic acid or aspartic acid, which is more conducive to growth in arid environments than C3 plants), and has high photosynthetic efficiency and drought resistance, waterlogging resistance, saline-alkali resistance, It is resistant to barrenness and is suitable for planting in areas with sufficient light energy but soil nutrient barriers, especially in low- and medium-yield saline-alkali areas. Sweet sorghum grows fast and has high yields. The stalks are rich in sugar, and the grain and stalks are double-harvested. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/20A01G13/02A01C21/00
CPCA01G22/20A01C21/005A01G13/0275
Inventor 杨莉琳杨帆
Owner TONGREN UNIV
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