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1954年引黄灌区进行了盐喊地改良试验。试验目的是要利用水利条件,结合农业措施,以达到保苗保产,这就首先要确定作物的抗盐性,然后才能确定采取的改良措施。因此,在试验过程中,对不同作物的抗盐性进行了一系列的观察与试验。供试作物有棉花、甜菜、高粱、向日葵与苜蓿等。一方面在试验地上结合不同的改良措施,观察作物的生长状态,并定期取土分析;一方面在农民的地上,选择作物生长受抑制程度不同的地块上取土分析。但影响作物抗盐性的因素根多,如土壤含盐成分及其数量,土壤的机械组成与含盐层深度,作物种类及其发育
In 1954 the Yellow River Irrigation District salt shouting to improve the test. The purpose of the experiment is to use water conservancy conditions, combined with agricultural measures to achieve seedling conservation, which first determine the salt resistance of the crop, and then to determine the improvement measures taken. Therefore, during the experiment, a series of observations and experiments were conducted on the salt tolerance of different crops. The test crops are cotton, sugar beet, sorghum, sunflower and alfalfa. On the one hand, we combined different improvement measures on the experimental ground to observe the growth status of crops and regularly took soil analysis; on the one hand, we selected the soil samples from the plots with different degrees of crop growth suppression on the farmer’s ground. However, there are many factors that affect the salt tolerance of crops, such as soil salt content and quantity, soil mechanical composition and salt depth, crop type and development