The Effect On The Growth, Production And Quality Of Sugarcane Under Different Fertilizer Treatments

In sugarcane fertilization management, generally there is a partial application, indiscriminate use of chemical fertilizer, attach importance to the nitrogen, contempt for potash, resulting in fertilizer serious imbalance, fertilizer utilization rate decreased year by year, and the relative production costs increased, the sugar cane production appears the phenomenon of increasing output without increasing. Therefore, it is important to carry out the "3414" test, determine the parameters of sugarcane fertilization and provide the scientific basis for the high yield of sugarcane.The results show that different fertilization scheme on Agronomic Characters in sugarcane have significantly affected. The No Fertilizer Area Emergence Rate, Effective Stems, Stem Length, Stem Diameter minimum were 65.6%, 47760, 151.40 cm and 2.01 cm respectively. And the N₂P₂K₂ mixed emergence rate, Effective Stems, Stem Length,, Stem Diameter of The Highest were 82.8%, 65680, 193.75 cm and 3.14 cm. the figures are 24.69%, 37.52, 26.49%, 56.22% higher than those of No Fertilizer Area.Effects of different fertilization on sugarcane quality significantly, in which No Fertilizer Area?N0P0K0 Mix? sucrose content, gravity purity, sugarcane juice Brix and sugar cane fiber lowest, respectively 12.01%, 60.05%, 15.49%, 9.38%. The Content Of Sugarcane, Gravity Purity, Brix In Juice, the Highest Fiber Percent Cane in N₂P₂K₂ Mix were respectively 17.60%, 88%, 24.64%, 16.53%, which were 46.54%, 33.23%, 59.07% and 76.22% higher than the proportions in No Fertilizer Area respectively. The highest sugarcane sugar content in No Fertilizer Area?N0P0K0 Mix? was 0.40%, the one of N₂P₂K₂ Mix is 0.12%?Lowest?,which was 233.23% lower than the former.Different fertilization schemes have significant effects on cane yield, No Fertilizer Area?N0P0K0 Mix? had the lowest sugarcane stalk weight?0.48kg?. and the weight of N₂P₂K₂ Mix sugarcane stalk was 1.50 kg, 212.5% higher than the former one.The yield per unit area in the No Fertilizer Area?N0P0K0 Mix? was 22942 /hm² kg, which was 337.40% lower than the 99501 /hm² kg in N₂P₂K₂ Mix sugarcane filed.Through the three yuan and two fertilization model, two +30.98-1.09 X₁2-0.09 X₂2-0.0076 X₃ X₂X₃ X₃2-0.29X₁X₂+0.78X₁X₃+0.68 Y=2376.29+114.98X₁ +56.87X₂ was obtained. When the 394.23 kg / hm² urea, calcium magnesium phosphate 298.08 kg.hm-2, potassium chloride 438.28 kg.hm-2, maximum yield is 10034.1 kg / hm² according to equation of fertilizer effect. Optimum amount of fertilizer urea for 387.23 kg / hm², calcium magnesium phosphate for 28.709 kg / hm², potassium chloride 419.38 kg / hm², the maximum economic yield is 98034.78 kg / hm². At the same time by the regression equation shows that N, P, K of the size of the coefficient of performance for n > k > P, indicating that the effect on sugarcane yield performance for nitrogen was greater than k is greater than phosphorus; N, P, K of quadratic coefficients are all negative, that excessive application of nitrogen, phosphorus and potassium fertilizer can cause the unit fertilizer amount in sugarcane production decline, thereby reducing the fertilizer utilization rate.