Effects Of Ecological Cultivation And Paddy Models Of Paddy Fields And Furrows On Soil Nutrients

Paddy field ecological cultivation is an ecological agricultural production model of combination of cultivation and cultivation,symbiosis of rice and fishery,and complementarity of rice and fishery;this model makes full use of the paddy field water surface,soil and biological resources,and implements the combination of cultivation and cultivation.It is an advanced production method that benefits fishery and rice,Achieve multi-purpose field,enhance the value of rice fields.In this paper,two types of ecological farming models for rice fields,ditch and gully,are designed,and three treatments are used for rice field fish farming,rice field chicken farming,rice field fish farming,and chicken.4treatments in the pattern(ditch + rice fish,ditch + rice chicken,ditch + rice fish chicken,ditch rice control),4 treatments in the ditch pattern(ditch + rice fish,ditch + rice chicken,ditch + rice fish)Chicken and Xianggou rice control),analyzed the effects of the two models of ridge furrow rice farming and xianggou rice farming on the actual yield of rice and soil physical and chemical properties,in order to provide some guidance for the production of high quality and high yield rice.The main results of the test are as follows:(1)In the furrow rice paddy farming model,the actual rice production of rice fish,rice chicken and rice fish chicken is higher than that of the control,and the highest output of rice fish is 6.76 t / hm2.Paddy field cultivation has little effect on the change of soil p H content.Rice fish,rice chicken,rice fish chicken can increase soil organic matter content;soil total nitrogen and total phosphorus content gradually increase with the growth and development of rice,rice fish chicken treatment improves soil total nitrogen and total phosphorus content is better than rice fish and rice Chicken treatment;the total potassium content of the soil is relatively stable throughout the growth period,and there is no significant difference between the treatments;the changes of soil alkaline nitrogen and available phosphorus content are basically the same,the most obvious increase is the treatment of rice,fish and chicken;the soil available potassium content is in rice The growth period fluctuated greatly,but after the maturity period,the differences between the treatments were not significant.(2)In the Xianggou rice paddy farming model,the actual rice yields of rice fish,rice chicken,and rice fish chicken are higher than the control,of which the rice fish and chicken output is the highest at 6.31 t / hm2;the soil p H content of rice paddy farming changes slightly As a whole,the progress of the growth process is beneficial to improve the acid environment of the soil,but there is no significant difference compared with the control;the content of soil organic matter does not change significantly during the entire growth period of rice;Growth has increased,and rice,fish and chicken treatments have improved soil total nitrogen and total phosphorus content than rice fish and rice chicken treatments;soil total potassium,alkali-decomposed nitrogen,and available phosphorus content fluctuated throughout the growth period,but rice fish Chicken treatment is significantly better than rice fish and rice chicken in increasing total potassium,alkali-decomposed nitrogen and available phosphorus;soil available potassium content fluctuates greatly during each growth period of rice,and rice fish and rice fish chicken treatment is better than rice chicken treatment.