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本文通过对萝卜进行施用有机肥和不施用有机肥条件下不同氮磷钾肥料量级的田间试验,研究分析氮肥、磷肥、钾肥对萝卜产量的影响,从而确定氮肥、磷肥、钾肥的合理的用量。试验结果表明:施用有机肥的时,在保证磷和钾的供应前提下,增加氮肥萝卜产量基本保持不变,由一元二次方程对氮素进行拟合,随着氮肥投入的增加,萝卜产量变化差异不大;在不施有机肥和施有机肥的小区,在保证氮、钾肥用量的前提下,增施磷肥能够增加萝卜的产量,前者比后者效应更加显著;在不施有机肥和施用有机肥的小区,在保证氮、磷肥用量的前提下,增施钾肥对萝卜产量增加效应不明显。从氮磷钾肥料对萝卜产量指标分析看,以667m2施氮7.0kg、磷6.0kg、钾10.0kg肥料的产量最佳。
In this paper, field experiments on radish application of organic fertilizers and different levels of NPK fertilizers without organic fertilizers were conducted to study the effects of nitrogen, phosphate and potassium fertilizers on the yields of radishes, so as to determine the reasonable dosage of nitrogen, phosphate and potassium fertilizers . The results showed that the yield of radish increased with the supply of phosphorus and potassium while the supply of organic fertilizer was maintained, and the yield of radish increased with the increase of nitrogen input by the quadratic equation In the area without organic fertilizer and organic manure, under the precondition of ensuring the amount of nitrogen and potassium fertilizer, the application of phosphate fertilizer can increase the yield of radish, the former is more significant than the latter; without organic fertilizer and Application of organic fertilizer in the community, to ensure that the amount of nitrogen and phosphorus under the premise of increased application of potassium on radish yield increased effect is not obvious. N, P and K fertilizers from the radish yield indicators, 667m2 nitrogen fertilizer 7.0kg, phosphorus 6.0kg, potassium 10.0kg fertilizer yield the best.