Method for determining salt-sensitivity period for salt tolerance of peanuts

Abstract

The invention relates to a method for determining salt-sensitivity period for salt tolerance of peanuts. The method comprises the following steps: (1) planting of the peanuts; (2) measurement of soil water content, soil moisture absorption water content and field water-holding capacity; (3) determination of soil salt content gradient, namely setting four salt stress concentrations of 0, 0.15%, 0.30% and 0.45% to analyze pure NaC1 preparation; (4) salt stress operation in growth stage, namely performing experiments of three factors of peanut variety, processing period and concentration by using an orthogonal method, carrying out salt stress operation in peanut germination stage, seedling stage, floricome stage and podding stage, and repeating the experiment for 6 times via random arrangement; (5) processing of experiment samples; and (6) experiment data processing and result analysis, namely determining the influences, caused by the salt stress in different growth periods, on the peanut form and biomass. According to the method, the production risk of the peanuts at the saline-alkali soil can be greatly reduced, the agricultural planting structure of the saline-alkali soil areas is optimized, the economic benefit and the social benefit of the agricultural production are improved, relatively high operability and raw material reutilization property are provided and the production cost is reduced.

Description

【Technical Field】 [0001] The invention relates to the technical field of crop cultivation, in particular to a method for determining the salt-tolerant sensitive period of peanuts. 【Background technique】 [0002] The area of ​​saline-alkali soil in my country is about 1.0×10 7 hm 2 , Accounting for 2.1% of the total land area and 6.2% of the arable land. At present, about 80% is still unused. Soil salinization seriously restricts the sustainable development of food production and agriculture. The full development and utilization of saline soil is the expansion of peanuts. One of the effective ways of planting area. [0003] Peanuts are important oil crops and economic crops. Peanut oil is one of the main sources of vegetable oil. Peanuts play an important role in China's agricultural development and export earnings. In recent years, the consumption of edible vegetable oil in my country has increased by more than 10% every year, and the contradiction between supply and demand is int...

AI Technical Summary

Problems solved by technology

As peanuts are drought-tolerant and barren-resistant crops but not saline-alkaline-resistant, peanuts are rarely planted in saline-alkali land in my country, or the yield is very low.

Images