Effects Of Amendments On Sodic Soil Properties And Rice Growth In The Underground Pipe Condition

This paper mainly studies of underground pipe under the conditions of modifier effects, mainly on Sodic Sodic Soil physical properties, chemical properties and the effect of the crop the following conclusions:MM, OSJF, K-OS, PT, four kinds of conditioner can be improved to a certain extent the physical properties of the soil, especially soil compaction and permeability. Reduce soil compaction, increase soil permeability. Permeable and field enhanced Sodic soil water holding capacity, Sodic Soil toward suitable for rice growth and improve the direction of development of the fertilizer use efficiency. After applying conditioner soil aggregates. Conditioner suitable for improving soil permeability with the underground pipe to change the alkali.After the application of four kinds of different conditioner, soil organic matter content have been increased to varying degrees, including application of30t/hm2MM conditioner and application of15t/hm2OSJF improver of soil organic matter content increased up to control the7.39g/kg increased to significantly11.25g/kg, and11.57g/kg effect. Applying conditioner after processing compared with the control, the available nitrogen content had increased, but the increase is not obvious, the most obvious application of15t/hm2MM conditioner effect of the increase from the point of view, by contrast44.9mg/kg increase to51.54mg/kg of, and the application rate of the MM conditioner is more to the contrary, inhibition of the increase of nitrogen content. Application improvers of soil available phosphorus content increases and decreases. Which application of30t/hm2MM conditioner and3.75t/hm2of K-OS modifier effect of close to increasing the content of available P, available P by the control plus a unit. And the application OSJF, the PT modifier, MM improver application rate less than30t/hm2of soil available P was lower in both. Sodic soil available potassium content of the application of conditioner treatment have increased. The most obvious application of30t/hm2the effect of potassium content increase contrast67.8mg/kg to71.2mg/kg.Conditioner can reduce soil pH, application of30t/hm2MM conditioner and application of15t/hm2OSJF modifier role best. Application of conditioner Sodic Soil conductivity has decreased. Which OSJF modifier effect of the best, the conductivity has decreased, followed by MM conditioner. Conditioner can reduce the salt content of soil improver effect is most obvious in the K-OS. Application of conditioner soil cation exchange capacity, improve the buffering capacity of the soil.The application of conditioner can make rice production, application of30t/hm2of MM conditioner and application of15t/hm2OSJF modifier role best. Plant height compared with the control increased by 9.09cm,6.34cm; rice yield, respectively, compared with the control to increase to1054kg/hm2,921kg/hm2...