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以马铃薯克新19号为试验材料,在N、P、K3种肥料单一施入的条件下,就N、P、K施入量对克新19号单株产量及单薯重进行分析,结果表明:随氮肥用量的增加,克新19号单株产量明显增加,当施用量为3.2g时单薯重量达最大值59.0g,而后随着施用量的增加单薯重量下降,当肥量到达一定量后,单薯重趋于稳定;随磷肥用量的增加克新19号单株产量略有增加,当肥量为4.8g时,单株产量达最大值;钾肥施用量对单株产量的影响不明显。在3种肥料的单一作用中,氮肥对单株产量的影响最大,磷肥次之,钾肥最小。
Taking Potato Kexin 19 as experimental material, the yield of Kixin 19 per plant and single potato weight were analyzed under the condition of single application of N, P and K fertilizers. Results The results showed that with the increase of nitrogen application, the yield per plant of Kexin 19 increased obviously. When the application amount was 3.2g, the weight of single potato reached 59.0g, then the weight of single potato decreased with the increase of application amount. When the fertilizer reached After a certain amount, the potato weight tended to be stable. With the increase of phosphate fertilizer usage, the yield per plant of KIXIN 19 slightly increased. When the amount of fertilizer was 4.8g, the yield per plant reached the maximum. The effect is not obvious. In a single role of three kinds of fertilizers, nitrogen fertilizer on the yield per plant the greatest impact, followed by phosphate fertilizer, potash fertilizer minimum.