The Study of Cultural Technology for High Yield of 'Jijing 88',a High Quality Super Rice Variety

Adopting the orthogonal-gyrating-regress design,5 factors in the culture of high quality super rice variety 'Jijing 88' were studied.The results showed that:(1)'Jijing 88' could produce high and steady crop,the average yield was 9 101.4 kg/hm2.If it was properly cultivated,the highest yield of 1 1269.1 kg/hm2 can be reached.(2) The order of effect of cultural factors on the yield of 'Jijing 88' was: Nitrogen applicationthe way of rice seedling transplantPhosphorus applicationnumber of rice seedling transplantedPotassium application.Among these factors,Nitrogen application is the most important to yield.(3) If the yield of'Jijing 88' reaches over 10 000 kg/hm2,it must be cultivated in such ways as follows: 220～228.0 kg/hm2 of Nitrogen,102.0～111.5 kg/hm2 of Phosphorus and 28.5～38.7 kg/hm2 of Potassium applied,rice seedling transplanted at density of 30×13.6～14.8 cm,5.1～5.8 seedlings per hold.