Model-Maths Analysis of Synthetic Agronomic Measures and Yield for High Quality,High Yield New Rice Variety Jijing 66

By adopting the orthogonal_gyrating_regression disign,5 main elements for cultivation in Jilin province of high quality,late matured variety_Jijing 66 were studied.The results showed:(1)Jijing 66 was high and stable yield variety,average yield level was 8 150 7 kg/ha.If cultivation is proper,the highest yield can reach 9921.1 kg per ha;(2)The order to the function of the yield of Jijing 66 in main cultivated measure was fertilizer N dressedthe way of transplant rice seedlingsfertilizer P dressedtransplanting datefertilizer K dressed,fertilizer N dressed was the most important.It was decisive factor to the yield;(3)It was estimated that when the yield of Jijing 66 reaches 9 000 kg per ha,the main cultivated measures should be below:transplanting date is from May 22 to May 24;the way of transplanting rice secdlings is 30.0 cm×(13.4～14 4)cm;fertilizer N dressed is 202 2～210 6 kg per ha;fertilizer P dressed is 250.0～262.9 kg per ha;fertilizer K dressed is 85.2～105.0 kg per ha.