Pariman that ahan thi khao dut khun pai chak din prieo II. Saha sam phan ra wang phong phalit kap pariman that ahan phut thi khao dut khun pai nai tae la phan.
1986
Ninpraphai Chantanaphap | Prapit Sangtong | Wisit Cholitkul
Correlation between yield and total amount of plant nutrient removal by six varieties of rice were studied. These varieties are Khao Dawk Mali, RD7, Khao Setti, Khao Tah Haeng, Leb Mae Nahng and Tapow Gaew. The amount of total nitrogen and phosphorus uptake were statistically correlated with yield in all 4 varieties except Khao Setti and Tapow Gaew. For Khao Setti yield was significantly correlated with the amount of total nitrogen uptake. Total potassium uptake was correlated with yield only in Khao Mali variety. The correlation between yield and total calcium uptake were found in Khao Dawk Mali, RD7 and Khao Tah Haeng. Yield was correlated with the amount of magnesium uptake in only Khao Dawk Mali and RD7. For trace element, total iron, manganese and sodium uptake were also calculated. There was no correlation between yield and the amount of total iron uptake in all varieties. Some vary, they have a trend to show negative correlation. Between yield and the amount of manganese removal, the correlation was found only in Khao Dawk Mali, Leb Mae Nahng and Tapow Gaew. The correlation between yield and total sodium uptake were statistically significant in Khao Dawk Mali, RD7 and Tapow Kaew.
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