| The formulation of 3414 part of the test program, using cabbage dwarf Heiye palm-leaf fan cultivars as materials, study
on nitrogen, phosphorus, potassium fertilizer, yield mathematical model and the fertilization parameters were carried out in Lianshan County sandy loam. The results showed that: soil available nutrient contents of N high grade, high level, high level P K; according to the test results to calculate the Fertilization Parameters: the utilization rate of fertilizer nitrogen is 34.48%, P 21.40%, K 53.21%; soil nutrient correlation coefficients were 2.39(N), 1.78(P), 11.08(K). Two regression fitting fertilizer effect model: y=1882.16+7.49x1+19.95x2+46.13x3-15.54x1x2+2.622x1x3+1.574x2x3-0.151x12-53.35x22-315.67x32, the model is The highest yield 667m2 to 2068.17kg, N, P2O5, K2O application rate per 667 square meters respectively 6.5, 1.2,4.9kg; fertilizer application ratio was 1:0.18:0.75. |
