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为鉴别保水剂对不同作物水分利用效率及产值的影响,以便于保水剂的应用与推广,在干旱半干旱区选择了西瓜、马铃薯和玉米3种作物,在干旱区选择了春小麦、向日葵、玉米和番茄4种作物,以不同作物不施保水剂为对照,分析比较了不同作物施用保水剂的水分利用效率、水分产出率、产量和产值。结果表明干旱半干旱区西瓜的增产值最大,但马铃薯的增值率最高且节水效果最好。干旱区向日葵的增产值最大,但玉米的增值率略高于向日葵且有很好的节水效果。根据不同作物施用保水剂的水分利用效率和增产值情况,建议干旱半干旱区推广、应用保水剂应优先选择马铃薯、西瓜,干旱区应优先选择向日葵、玉米。
In order to identify the effect of super absorbent polymer on water use efficiency and output value of different crops in order to facilitate the application and promotion of super absorbent polymer, three crops of watermelon, potato and maize were selected in arid and semi-arid regions. Spring wheat, sunflower and corn And tomato, the water-use efficiency, water yield, yield and value of different types of crops were compared and analyzed. The results showed that watermelon production in arid and semi-arid regions was the highest, but potato had the highest value-added rate and the best water-saving effect. The output of sunflower in arid area is the largest, but the added value of corn is slightly higher than that of sunflower and has a good water saving effect. According to different crop application of water-saving agent of water use efficiency and production value of the situation, it is recommended that the promotion of arid and semi-arid areas, application of water-retaining agent should give priority to potato, watermelon, arid area should give priority to sunflower and corn.