Effects of Si-Fertilizer Application through the Leaves on Yield and Sugar Content of Sugarcane Grown in Soil Containing Abundant N

Ketut Anom Wijaya
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引用次数: 4

Abstract

The research objective is to overcome the negative effects of the very high N supply for the sugar content of sugar cane. While on the other hand in order to produce high sucrose, sugarcane requires a supply provided approximately 350 kg N/ha. Experiments conducted on the sugar cane plantations containing available N higher than 2500 kg/ha. The treatments were: 1) without spraying of Si-fertilizer and 2) with spraying of Si-fertilizer began when sugarcane 3 months old (8 times spraying), with consentration of 4.3 g/L. Experiment ended at the age of 10 months for PS881 and 12 months for BL. Spraying tends to produce a yield that is different from unsprayed cane. Si-fertilizer decreased sugar content of BL, but increased harvest yield. Si-fertilizer decreased harvest yield, but increased the sugar content of PS 881.

叶片施硅对富氮土壤中甘蔗产量和含糖量的影响
研究目的是克服高氮供给对甘蔗含糖量的负面影响。而另一方面,为了生产高蔗糖,甘蔗需要提供约350公斤氮/公顷的供应。在速效氮高于2500 kg/ha的甘蔗种植园进行试验。处理为:1)不喷硅肥,2)甘蔗3月龄开始喷硅肥(喷8次),浓度为4.3 g/L。试验结束时,PS881为10月龄,BL为12月龄。喷施蔗的产量往往与未喷施蔗不同。硅肥降低了BL的含糖量,但提高了收获产量。施硅降低了PS 881的产量,但提高了含糖量。
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