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- W3177813384 abstract "The relationship of soil mechanical composition, pH value and main nutrients with soybean yield in soybean planting areas of Jilin province was studied by means of mathematical relationship analysis . The results show that both clay particle and silt particle are positively correlated with soybean yield, the coefficient of which are 0.734 and 0.788 respectively. Soil mechanical composition analysis indicates that favorable soil condition for cultivating soybean is silt clay soil and clay loam classification; amount of clay particles is between 15% -25% , and that of silt sand particles is between 25% - 45% . Soil pH value and soybean yield are negatively correlated, the coefficient of which is - 0.834; but soil pH between 5.5 ~ 6.5 is beneficial to soybean yield increase; soil alkali N between 80 ~ 140 mg/kg is beneficial to soybean yield. The correlation between soil available P and K and soybean yield is not obvious in every planting area; the availability of main nutrients is relative to pH value, soil mechanical composition and the ratio of N, P and K." @default.
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- W3177813384 date "2004-01-01" @default.
- W3177813384 modified "2023-09-26" @default.
- W3177813384 title "Relationship of soil mechanical composition,pH value and main nutrients with soybean yield in planting areas of Jilin province" @default.
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