| In this paper,according to the combined technical route of the 2013-2014 field test data,theoretical research and mathematical analysis,the author studied the physiological and ecological characteristics,water consumption characteristics and yield of winter wheat and summer maize,under the condition of different planting patterns.The fuzzy mathematics method is used to analyze the test results of one year.The main research contents are as follows:Compared with the conventional planting pattern,the growth period of winter wheat and summer maize was delayed,under the wide ridge planting pattern,which laid a foundation for the final yield increase of winter wheat and summer maize.In the case of planting mode,the plant height and leaf area of winter wheat and summer maize increased with the increase of water control limit.There was a positive correlation between the plant height and leaf area of winter wheat and summer maize and the lower limit of water treatment.Compared with the conventional flat planting pattern,when the moisture is certain,the plant height and leaf area of winter wheat and summer maize were relatively high,under the wide ridge and furrow irrigation planting conditions.The maximum yield of winter wheat was the treatment L-80 of the wide ridge planting pattern,which reached 8092.5kg/hm2,and the maximum yield of summer maize was L-70 of the wide ridge planting pattern,reaching7703.39kg/hm2.When the water treatment was the same,the water consumption of winter wheat and summer maize of wide ridge and furrow irrigation were lower than that of conventional furrow irrigation.When the planting pattern was the same,the higher of the limit of water control,the greater of the water consumption of winter wheat and summer corn.Under the condition of wide ridge planting pattern,the water production efficiency of 3 kinds of water treatment was higher than that of conventional planting pattern.It can be concluded that the wide ridge planting pattern is superior to the conventional planting pattern.When irrigation utilization of water resources is scarce under the planting conditions,we can take to chose the planting irrigation method of saving irrigation water and sacrificing a part of the production.That is wide ridge planting(WFI-60)with water treatment of 60%.When irrigation utilization of water resources is sufficient,we can take to chose the plantingirrigation method of ensuring the production and sacrificing irrigation water.That is wide ridge planting(WFI-70)with water treatment of 70%.In order to study the application of fuzzy mathematics in water consumption and yield of winter wheat and summer maize,this paper uses the improved fuzzy comprehensive evaluation model to evaluate comprehensively the response of winter wheat and summer maize in different growth stage water consumption and yield components of planting and furrow irrigation.The results showed that the yield of winter wheat was higher than that of conventional planting under the condition of wide ridge planting.Among them,the he highest efficiency(1.92 kg/m3)was the treatment of field capacity 80% of the wide ridge and furrow irrigation planting.While the lowest efficiency(1.64 kg/m3)was the treatment of field capacity 60% of the conventional planting.Compared with the fuzzy comprehensive evaluation method,both of them are in good agreement.The yield of winter wheat increased with the water control limit increasing,while the yield of summer maize showed first increased and then decreased with the water control limit increasing.The corresponding fuzzy comprehensive evaluation results are consistent with the actual production.Therefore,the fuzzy comprehensive evaluation results of water consumption and yield of winter wheat and summer maize had the higher alignment with that of field experiment.The results show that the method can be used to evaluate the effect of water-saving irrigation,and it can provide scientific reference for the evaluation of water-saving irrigation experiment results. |
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