有机—无机配方肥对新植宿根糖料蔗提产增糖及沃土效果初报

The study of organic and chemical compound fertilizer's impact on new-planted perennial root sugarcane for its higher sugar content and fertile soil effect

为探讨甘蔗有机—无机配方肥对甘蔗产量、糖分及蔗地土壤养分的影响,于2010—2012年开展甘蔗施用有机—无机配方肥与等量氮磷钾化肥的小区定位对比试验研究(1年新植2年宿根)。结果表明:在中等肥力丘陵旱地每年每667m2施商品有机肥500kg、有机—无机配方肥(15—6—9,有机质20%)200kg和氯化钾10kg的处理,获得较佳的综合性状:平均蔗茎产量7419kg,蔗茎含糖分16.61%,三年后耕层土壤有机质增0.11g/kg、全氮增0.045g/kg、有效磷增2.74mg/kg、速效钾增2.3mg/kg、酸性土壤pH值增0.09。表明"有机肥+有机—无机配方肥"对甘蔗生产兼有营养作物和培肥地力的效果。

In order to explore the impact of sugarcane organic and chemical compound fertilizer on the yield,sugar content and soil nutrient,a compound fertilizer experiment and an equal N-P-K fertilizer experiment were conducted and compared in 2010—2012（one year new-planted and two years perennial root cultivation）.The results show that in hilly dry-land with middle fertile soil,the application treatment of 500kg manure,200kg organic and chemical compound fertilizer and 10kg potassium chloride in 667 ㎡ yearly can obtain a better integrated effect with average yield of 7419kg,sugar contents of 16.61%.after three years,the soil organic matter of plough layer will be increased by 0.11g / kg,total N by 0.045g / kg,effective P by 2.74mg / kg,quick-acting K by 2.3mg / kg,acid soil Ph value by 0.09.The research results show that ＂ manure ＋ organic and chemical compound fertilizer＂ has the functions and effects of nourishing crop and fostering soil fertility in sugarcane production.