为探究沙地节水莲藕与水产养殖混合种养模式对莲藕生长发育、品质的影响，以

To explore aquaculture sand mixed with lotus saving mode planting lotus root growth and development, quality, to 'Elian 5' as test materials of lotus root, lotus design - dolphin, Lin - crayfish, Lin - carp, lotus - crabs, control (single lotus) 5 treatment, field experiment to study different lotus - lotus root on growth development of fish farming under ecological planting and breeding patterns, commodity products, nutritional quality and economic efficiency . The results showed that lotus - fish farming model is conducive to growth and development and to enhance the nutritional quality of lotus root. Wherein, the processing performance of the best Tl, lotus rhizome which full quality lotus, lotus main mass, the maximum mass of 1.58kg Oujie respectively, and 423 g of 1.39kg, 29.5,36.3 compared to control and increased 6.2 percentage points; in terms of nutritional quality lotus rhizome, Tl treatment of the crude protein, starch, sugar, crude fiber, vitamin C content lotus products were higher than other treatments and control, Tl total amino acid processing product is lower than the other treatments lotus root and the higher than the control, while the process T1 lotus root nitrate content of the product decreased significantly lower than other treatments and control; in terms of efficiency, yield T1-effective process, was 97,180 yuan · hm-2, an increase 64,000 yuan · hm-2 than control , T2 and T4 treatment, although damage to the large lotus bud, also have some effect on the lotus root yield, but higher output two fish processing, lotus root to make up for the loss of value of production, increase its efficiency higher than the control process, while the smallest increase of T3 effective, but increases 31940 yuan · hm-2 than controls. The test results show that the sand-saving mode of lotus-fish to the best performance in T1, worth in production in large scale applications.

In order to explore the impact of the mixed breeding pattern of sand water-saving lotus and aquaculture on the growth and development and quality of lotus, the design of lotus-slug, lotus-crayfish, lotus-carp, lotus-big-gate crab, control (single lotus) 5 treatments, using field test methods, The influence of different lotus-fishing ecological breeding model on the growth and development, product commodity, nutritional quality and economic benefits of lotus is studied. The results show that the lotus-fishing co-operation model is beneficial to the growth and development of lotus and the improvement of nutritional quality. Among them, T1 treatment performance is the best, its lotus root stem whole centr quality, main slug mass, maximum cove mass of 1.58 kg, 1.39 kg and 423 g, compared with the control increased by 29.5, 36.3 and 6.2 percentage points; Starch, reducing sugar, coarse fiber, vitamin C content is higher than other treatment and control, T1 treatment lotus products of the total amount of amino acids lower than other treatment and higher than the control, while T1 treatment lotus products nitrate content is significantly lower than other treatment and control; HM-2, than the comparison increase of 64000 yuan hm-2, T2 and T4 treatment although the destruction of lotus buds is greater, but also has a certain impact on the production of lotus, but the two treatment of aquatic products production value is higher, make up for the loss of the output value of lotus production, its yield increase efficiency is higher than the control treatment, and T3 treatment yield yield is the smallest, But it was an increase of $31,940 and hm-2. The results of this experiment show that T1 treatment is the best in the sand water-saving lotus fishing co-production mode, which is worth popularizing and applying in large areas of production.

In order to explore the effect of water-saving and aquaculture hybrid cultivation mode on the growth and quality of lotus root, five treatments of lotus loach, lotus crawfish, lotus carp, lotus hairy crabs and control (single lotus root) were designed with "Elaine 5" as the test materials. The growth and production of lotus root under different ecological cultivation modes of lotus fish co-operation were studied by field test The influence of commodity, nutritional quality and economic benefits. The results showed that the mode of lotus fish co cultivation was beneficial to the growth and development of lotus root and the improvement of its nutritional quality. Among them, T1 treatment is the best, the total, main and maximum nodal mass of the rhizome of lotus root are 1.58kg, 1.39kg and 423g respectively, which are 29.5, 36.3 and 6.2 percentage points higher than that of the control; in terms of the nutritional quality of the rhizome of lotus root, T1 treatment has higher crude protein, starch, reducing sugar, crude fiber and vitamin C content than other treatments and the control The total amount of amino acids of lotus root products treated with T1 was lower than that of other treatments and higher than that of the control, while the nitrate content of lotus root products treated with T1 was significantly lower than that of other treatments and the control. In terms of benefit, the yield increase benefit of T1 treatment was the highest, reaching 97180 yuan · hm-2, 64000 yuan · hm-2 higher than that of the control. Although T2 and T4 treatment had great damage to lotus root buds, they also had a certain impact on lotus root yield The output value of aquatic products of these two treatments was higher, which made up for the loss of output value of lotus root. The yield increasing benefits of these two treatments were higher than that of the control, while the yield increasing benefits of T3 treatment were the least, but increased by 31940 yuan · hm-2 compared with the control. The results show that T1 treatment is the best in the mode of water-saving lotus fish co cropping in sandy land, which is worth popularizing and applying in large area.