Effects Of Different Rotation Patterns On Growth,Soil Nutrients And Yield And Quality Of Potato

Aiming at the persistent growth of potato growth or irrational rotation in the potato production in the northern foothills of the Yinshan Mountains in Inner Mongolia,the growth and development of the potato is hindered,the soil-borne diseases are serious,the yield is decreasing year by year,and the production cost is increasing year by year.In this paper,potato is used as the test object,and the combination of field large area test and indoor test analysis is used to conduct two cycles of experiments in Wuchuan County,Hohhot City from 2016 to 2018.This test is only for these two cycles.The post-crop crops were used to sample and measure various indicators of potato,and explore the effects of different rotation patterns on potato growth and development,basic nutrient status of potato farmland,potato field disease and tuber disease occurrence,and potato yield and quality.The theoretical basis for the rotation pattern of potato planting in the area north of Yinshan Mountain.The main findings of the paper are as follows:1.The most obvious treatments for the growth of potato plant height in 2017 and 2018 were potato mash and green manure spring turn ? green manure summer turn ? potato treatment;the most obvious treatments for potato stem thickening were oat bran and sunflower.?Sunflower?potato treatment.2.Overall,the distribution of dry matter in leaves,stems and tubers,the distribution of dry matter in leaves,stems and tubers,the time to reach the fastest dry matter accumulation rate of whole plants,and the whole plant in the treatment of potato in 2017.The fastest dry matter accumulation rate and the maximum dry matter accumulation of the whole plant,the green manure spring raking treatment was the best,followed by the oat mash treatment;the overall treatment in 2018 in the potato leaves,stalks and tubers The accumulation of dry matter,the distribution rate of potato dry matter in leaves,stems and tubers,the time to reach the fastest dry matter accumulation rate of the whole plant,the fastest dry matter accumulation rate of the whole plant and the maximum dry matter accumulation of the whole plant.Performance,green fertilizer spring turn?green fertilizer summer turn?potato treatment performance is best,green fertilizer spring turn?green fertilizer spring turn?potato and oats?sunflower potato treatment is better.3.The SPAD value of potato leaves treated with green manure in 2017 was higher.The net photosynthetic rate of potato leaves treated with potato,green manure and oat bran was higher.The potato leaf and potato mash treated with higher stomatal conductance.The intercellular CO2 concentration of potato leaves treated with potato and green manure was higher.The transpiration rate of potato leaves treated with oat and sunflower was higher.2018 green manure spring turn?green manure summer turn ? potato and green manure spring turn green manure spring turn?potato treated potato leaves SPAD value,net photosynthetic rate and stomatal conductance are higher;green fertilizer spring turn?green fat spring turn?potato The intercellular CO2 concentration of the treated potato leaves was higher;the transpiration rate of potato leaves treated with green manure spring turn?green manure summer turn?potato and sunflower?sunflower?potato treatment was higher.4.Overall,the results of the treatment of pH value,alkali nitrogen content,available phosphoms content,available potassium content and organic matter content in potato farmland in 2017 were the highest in the potato farmland treated with green manure,and the potato farmland treated with oat bran was the highest.The basic nutrient content is relatively high;the overall performance of the treatment in the potato field at pH value,alkali nitrogen content,available phosphorus content,available potassium content and organic matter content at 58 days after emergence,green fertilizer spring turn green fertilizer summer turn The potato treated potato had the highest basic nutrient content,and the basic nutrient content of potato farmland treated with oats?sunflower?potato was higher.The pH value,alkali nitrogen content,available phosphorus content and available potassium of potato farmland were observed before harvest.The performance of the content and organic matter content,green fertilizer spring turn?green fertilizer spring turn ? potato and green manure spring turn green manure summer turn?potato treated potato farmland has the highest basic nutrient content.5.In 2017,the results of early plant disease index,tuber black smut disease incidence,tuber wilt disease rate and plant wilt disease rate of potato plant treated with green manure,sunflower and oat bran were lower;potato and potato tuber treated potato tuber The scab disease index is lower.2018 sunflower?sunflower?potato treated potato plants had lower perfornance index of early blight;sunflower?sunflower?potato and oats?sunflower?potato treated potato plant wilt disease incidence,tuber black smut disease index,tuber scab disease condition The incidence of index and tuber wilt is lower.6.In 2017,the content of crude protein in tubers treated with green manure and potato mash was higher.The content of amylose in green manure and potato mash was smaller,while that in green manure and potato mash was better.The total starch content of potato tubers treated with green manure,potato and oat bran showed a large performance.2018 green manure spring turn?green manure summer turn?potato,green manure spring turn?green manure spring turn?potato and oats?sunflower?potato treated amylose content is small,while green fertilizer spring turn?green fertilizer summer turn?potato treatment The amylopectin content is relatively large.Green manure spring turn?green manure summer turn?potato and green manure spring turn?green manure spring turn?potato treated potato starch content is greater.7.The potato yield in 2017 was higher in the treatment of green manure and oat bran;potato yield and single tuber weight were higher in potato mash treatment;potato single-plant potato number was higher in green manure spring mashing treatment.The potato yield and individual tuber weight in 2018 were both green manure spring tum?green manure summer tum?potato and green manure spring turm?green manure spring turn?the potato treatment performance was higher;the potato commercial potato rate was green manure spring turn?green manure spring turn?potato and Sunflower?sunflower?potato treatment was higher;the number of single plants in each treatment did not reach a significant difference.