Wheat Peas Intercropped On Soil Nutrients And Study On The Effect Of Wheat Yield

The intercropping farming model is widely distributed in China and is a production technology that effectively utilizes land resources.In China,a large number of intercropping models are nowadays,which can effectively resist pests and diseases,increase the multiple cropping index,reduce the area and extent of soil erosion,and increase the yield and income.In recent years,wheat and pea intercropping are an ideal agro-ecological production model.Therefore,in order to clarify the effects of different cropping ratios of wheat peas on agronomic traits,photosynthetic characteristics,soil nutrient changes,soil enzymes and wheat yield,the study was conducted from September 30,2017 to June 18,2018.The field experiment was conducted at the agricultural station of Shanxi Agricultural University.The tested varieties were Changmai251 and Zhongwan No.4,which were designed by randomized block experiment and set up 4 treatments,namely A(wheat single crop)and B(The ratio of wheat towing is 15:6),C(the ratio of wheat towing is15:8),D(the ratio of wheat towing is 15:10),and wheat is the research object of the aboveground part.-20 cm soil is the research object of the underground part.The main findings are as follows:In terms of agronomic traits of wheat,the plant height of B treatment at heading stage,grain filling stage and maturity stage showed obvious advantages compared with A and D treatments,which were 85.9cm,87.26 cm and 89.54 cm,respectively.The plant height of C treatment was higher than 90 cm in the filling and maturity stages.Therefore,the whole experimental procedure proved that B treatment was superior to other treatments in plant height;B and C were treated as two crops compared with wheat dry matter dry matter accumulation.More,especially with B treatment is more significant.In terms of photosynthetic characteristics,the photosynthesis rate of C treatment was highest at 7 days,14 days,28 days,and 35 days,and the chlorophyll content was also higher at 21 days,28 days,and 35 days.The chlorophyll content of B treatment was 7 days and 14 days.More.In terms of soil nutrient,the nutrient content of C treatment in the late growth stage of wheat was significantly better than other treatments,which showed that the contents of alkali nitrogen,available phosphorus,available potassium,total nitrogen,total phosphorus and total potassium were higher than other treatments.The ratio of wheat peas for treatment C was suitable for wheat growth;the content of organic matter in the post-production treatmentof wheat was higher than that of single cropping mode,and the advantage of treating C was the most significant.In terms of soil enzymes,in the late growth stage of wheat,the contents of urease,invertase and phosphatase in the soil were significantly higher than those in the other three treatments.In terms of yield and yield components,the indicators for wheat yield and yield in the C treatment were at the maximum,and the yield reached 5266.81 kg/hm2.Therefore,C treatment is most beneficial to the growth of wheat in all treatments.This experiment adopts a reasonable and effective mode of wheat bean cultivation and cultivation,reveals the mechanism of high yield and high efficiency of wheat,and provides a theoretical basis for effectively increasing wheat yield,increasing farmers' income,and making agricultural development more green and rapid.