Salt pond for identifying saline-alkaline tolerance in rice and method of using same

Abstract

The invention discloses a salt pond for identifying saline-alkaline tolerance in rice and a method of using the same. The salt pond structurally comprises a salt pond base that contains a tillable layer, a gravel layer and a medium sand layer sequentially from top to bottom, a filter mesh that supports the tillable layer is provided between the tillable layer and the gravel layer, a seepage pipe is arranged in the medium sand layer, one end of the seepage pipe is connected with an outer drain outlet of the salt pond base, the seepage pipe is evenly provided with a plurality of seeping holes, the seepage pipe is covered with nonwoven to prevent fine sand from entering the seeping holes and blocking the seeping holes, one side of the upper portion of the salt pond base is provided with a water inlet, and the other side of the upper portion of the salt pond base is provided with a water outlet correspondingly. The salt pond is used for identifying saline-alkaline tolerance of rice in natural saline-alkaline soil with different salinity levels under different development stages, and the identification of saline-alkaline tolerance in rice is more precise.

Description

technical field [0001] The invention relates to a salt pond, in particular to a salt pond for identification of rice salt-alkaline tolerance and a use method thereof. Background technique [0002] "With food in hand, don't panic in heart". Guaranteeing food security is an overall major strategic issue related to my country's national economic development and social stability. At present, my country's good land resources have been fully tapped, and the development and utilization of 500 million mu of saline-alkali land will greatly alleviate the development bottleneck problem caused by the red line of China's 1.8 billion mu of cultivated land. However, it is currently too costly to improve saline-alkali land mainly using land improvement projects such as large amounts of fresh water, but this will be less feasible in the future when water resources become more and more precious. Therefore, cultivating saline-alkali-tolerant crop varieties is one of the key tasks of current ...

AI Technical Summary

Problems solved by technology

In recent years, most of the stress agents used in rice salt / alkaline tolerance research are NaCl solution and Na2CO3 solution, while the soil in the saline-alkaline rice area in production is mostly the soil type with both salt and alkali. Materials with good saline-alkaline tolerance in liquid treatment may not necessarily show strong saline-alkali tolerance and adaptability in the field where both salt and alkali are equally important, so the results of using a single salt or alkali screening cannot really be used for salt-tolerant rice breeding

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