Four methods for reducing soil salinity in greenhouse

In the cultivation of greenhouse facilities, the accumulation of soil salinity has become a major obstacle to the continuous improvement of crop yield and quality in greenhouse cultivation. In order to find out the accumulation of soil salinity in greenhouse cultivation, the municipal soil and fat station measured the salt content of some towns and towns that were cultivated earlier in the city. The results showed that the salt content of the soil samples in the greenhouse was 3.37 times that of the greenhouse or adjacent fields, and 54.1% of the greenhouses had more serious salinization, and 87.5% of the soil samples could be classified as salt soil. In response to the above situation, the municipal soil and fertilizer station recommended that the majority of farmers use the summer and autumn rainy season to carry out natural salting. The specific technical requirements are as follows:

1. Remove all the shed film and let the greenhouse soil be in the open air;

2. Open the drainage ditch along the shed in the greenhouse, with a spacing of 80 to 100 cm and a depth of 30 cm to ensure that the drainage channel is drained outwards;

3. Clean the mud in the drainage ditch in time after rain to ensure that the rain stops and ditch;

4. In order not to affect summer planting, some summer vegetables can be planted on the crotch between the gutters.

In July and September, there are generally several large rainfall processes, making full use of the leisure period of greenhouse cultivation in this greenhouse. Through the leaching effect of rainwater, the salt content in the greenhouse soil can be greatly reduced to reduce the salt concentration. The hazards of crops.

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