Controlled-salinity cultivation method for plating crop on moderate and medium and severe saline-alkali soil

A technology of severe saline-alkali land and cultivation method, applied in the fields of coastal tidal flat land management and crop cultivation, can solve the problems of slow soil fertility cultivation process, low agricultural utilization efficiency, single technology use, etc., to improve irrigation and drainage efficiency, reduce bare soil area, The effect of reducing the amount of irrigation

Inactive Publication Date: 2011-05-18
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006]Technical problem: the purpose of the present invention is to aim at the poor effect of salt control methods on the medium and severe saline-alkali soils of coastal beaches, the use of single technology, the poor adaptability of conventional cultivation methods, and the poor adaptability of crops. A series of practical problems such as low yield, low fertilizer utilization rate, slow soil cultivation process, and low agricultural utilization efficiency, etc., propose a set of salt-controlled cultivation methods suitable for planting crops and economic plants in moderately and severely saline-alkali coastal areas

Method used

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  • Controlled-salinity cultivation method for plating crop on moderate and medium and severe saline-alkali soil
  • Controlled-salinity cultivation method for plating crop on moderate and medium and severe saline-alkali soil
  • Controlled-salinity cultivation method for plating crop on moderate and medium and severe saline-alkali soil

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Effect test

Embodiment 1

[0027] Jiangsu Binhai flat medium to high saline-alkali land, the soil salt content in the 0-20 cm plow layer is 3.1‰-5.6‰, set 3 replicates, each replicate 12 m 2 (The size of the test plot is 4 m×3 m). The planted crops are Jerusalem artichoke, oil sunflower and grain amaranth. Among them, the variety name of Jerusalem artichoke is South Jerusalem artichoke No. 1 (Sujian Jerusalem artichoke 200901), the variety name of oil sunflower is G101B, and the variety name of grain amaranth is R104. The sowing date of Jerusalem artichoke is March 30, 2009, and the harvesting date is November 29, 2009; the sowing date of oil sunflower and grain amaranth is April 1, 2009, and the harvesting date is July 17, 2009 and August, 2009 respectively 3rd. As a control, Jerusalem artichoke, oil sunflower and grain amaranth were not planted using the salt-resistant cultivation method. Location: Jinhai Farm, Caomiao Town, Dafeng City, Yancheng, Jiangsu Province, facing the Dafeng Elk National Nat...

Embodiment 2

[0058] The salt-controlling cultivation method of crops planted in coastal flats with moderate and severe saline-alkali soils. The salt-control target value is determined according to the salt-tolerant threshold of the crops to be planted. The intermittent irrigation method is used to irrigate the saline-alkali land about 1 week before sowing to wash salt, and the four-electrode salinity sensor is used to Real-time monitoring of the soil desalination process. The four-electrode salinity sensor is arranged vertically in layers of 10 cm, 20 cm, and 40 cm in the soil profile of the planting area. When the salt elution front runs below 40 cm of the plow layer, and the soil salt content of the plow layer Stop irrigation when it is not higher than the irrigation salinity target value. On the basis of applying 50-100 kg / mu of organic fertilizer per mu, the N-P 2 o 5 -K 2 O The compound fertilizer with a weight percentage of 15:20:10 or 18:22:8 is mixed with 30-50 kg / mu and applied ...

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Abstract

The invention discloses a controlled-salinity cultivation method for plating crop on moderate and medium and severe saline-alkali soil, comprising: before sowing, irrigating saline-alkali soil for pressing salt and making soil moisture with fresh water; applying base fertilizer based on the principal of organic fertilizer into the saline-alkali soil; meanwhile, applying compound fertilizer suitable for the saline-alkali soil as the assistant material; then, ploughing soil, and raking with a leveller to preserve soil moisture; furrowing and making a ridge; covering films and sowing on the high position of the ridge; carrying out close planting; and spraying growth regulator. The cultivation method has the advantages of strong adaptability and high crop output, can be used for improving the utilization ratio of the fertilizer, quickeing the soil fertility cultivation process and bringomg high agricultural use benefits.

Description

technical field [0001] The invention belongs to the technical field of tidal flat land management and crop cultivation, and in particular relates to a salt-controlling cultivation method for planting crops in coastal tidal flat medium and severe saline-alkali land. Background technique [0002] At present, all kinds of coastal tidal flats with a total area of ​​nearly 40 million mu in our country are important reserve land resources in our country. Taking the coastal area of ​​Jiangsu as an example, it is still growing at a rate of nearly 20,000 mu per year. The development and utilization of coastal saline-alkali land can not only provide food sources, but also become the production carrier of important salt-tolerant economic plants such as energy plants, medicinal plants, and vegetables, and meet the growing needs of the society for food and energy. It is one of the growth points of my country's rural economy It is also one of the important ways to alleviate the contradicti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCY02A40/10
Inventor 姚荣江杨劲松赵秀芳韩建均
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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