Effects of different fertilization on soil physicochemical properties and fruit yield of Solanum muricatum Aiton
To explore the effects of different formula fertilization on soil physicochemical properties and fruit yield of Solanum muricatum Aiton.In this experiment,the red loam and rocky desertification sandy soil of Shilin County of Yunnan Province were used as experimental sites,and S.muricatum'Yuanguo 2'was used as planting test material.By applying 4 different formula fertilizers treatments,traditional fertilization method was used as a control(CK),the effects of different formula fertilization on soil physicochemical properties and fruit yield were analyzed.The results showed that in terms of soil physical and chemical properties,compared with CK,the application of mineral humic acid microbial agent 20 g+mineral medium and trace element fertilizer 20 g+mineral potassium fulvic acid 1 g had the best effect on the physical and chemical properties of red loam soil.The content of total nitrogen and total potassium was the highest,which increased by 3.4％and 7.2％compared with CK,respectively.The application of mineral humic acid microbial agent 10 g+mineral medium and trace element fertilizer 10 g+mineral xanthohumate potassium 1 g+high-phosphorus compound fertilizer 5 g+high-potassium compound fertilizer 5 g had the best effect on the improvement of physical and chemical properties of rocky desertification sandy soil.Among them,total phosphorus and total potassium contents were the highest,which increased by 112.8％and 4.2％compared with CK,respectively,and PCM and D values were the lowest 0.425 and 2.738,respectively.In the red loam soil,the content of soil microaggregates with particle size of 2.00～0.25 mm increased,the soil voidage increased,and the bulk density decreased.In terms of fruit yield,under the same fertilizer formula,there was a difference in fruit yield between red loam and rocky desertification sandy soil.In rocky desertification sandy soil,the yield per 667 m2 increased with the increase of fertilization concentration.In red loam soil,the yield per 667 m2 under the application of mineral humic acid microbial agent 10 g+mineral medium and trace element fertilizer 10 g+mineral potassium fulvic acid 1 g is the highest,and the yield per 667 m2 decreases with the increase of fertilization concentration.In summary,the mixed application of bio-organic fertilizer,microbial fertilizer and high phosphorus and high potassium compound fertilizer can improve the physical and chemical properties of soil,improve soil nutrients,and increase the yield of S.muricatum.
Solanum muricatum Aitonplantingformula fertilizationsoil physical and chemical propertiesfruit yield
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