硅钙磷钾肥对花生产量品质及经济效益的影响

在大田试验条件下,研究了不同用量硅钙磷钾肥配施硝硫基复合肥对花生生长、产量、品质及经济效益的影响。结果表明,在硝硫基复合肥用量一致的条件下,配施硅钙磷钾肥可明显增加花生产量,提高花生总分枝数、单株结果数、出仁率和百仁重;其中以每公顷配施硅钙磷钾肥540 kg的花生产量最高,籽仁品质最好,增产304 kg/hm2,增收1 328元/hm2;另外,硅钙磷钾肥还可提高花生籽仁中脂肪和蛋白质含量,提高脂肪中油酸亚油酸(O/L)的比值;减施10%硝硫基复合肥用量配施硅钙磷钾肥也能保持较高的产量和经济效益,减施20%复合肥配施硅钙磷钾肥花生减产不明显。

Effects of Silicon-Calcium-Phosphorus-Potassium Fertilizer on Yield,Quality and Economic Benefit of Peanut

On the basis of combined application of different levels of silicon -calcium-phosphorus-po-tassium （SCPP） fertilizer and nitro-S-based （NS） compound fertilizer, the field experiments were conduc-ted to study their effects on growth , yield, quality and economic benefit of peanut .The results showed that the combined application of SCPP fertilizer obviously increased the yield of peanut , the total number of branches , the pod number of individual , kernel percent and 100-kernel weight at the same level of NS compound fertil-izer .The highest yield and the best kernel quality could be obtained when the combined application amount of SCPP fertilizer was 540 g, and the yield and the economic benefit increased by 304 kg and 1 328 yuan per hectare respectively .The combined application of SCPP fertilizer also improved the fat and protein contents and the O/L ratio in peanut kernels .On the basis of combined application of SCPP fertilizer , the yield and e-conomic benefit of peanut maintained higher at the reduction of 10%NS compound fertilizer;the reduction of yield was still not obvious at the reduction of 20%NS compound fertilizer .