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以红枣“七月鲜”为试材,采用“3414”施肥方案,研究了不同氮(N)、磷(P)、钾(K)配比对红枣产量的影响,并进行了缺素分析,通过单因素、二因素、三因素回归分析,得到红枣“七月鲜”相对施肥量下的最佳产量和最大产量。结果表明:N、P、K配施能显著提高红枣“七月鲜”的产量,对产量的影响依次为K>N>P,试验中最佳处理6施肥量(N、P2O5、K2O为0.23、0.12、0.2kg/株)增产达到50%,通过模型分析得到最大施肥量N、P2O5、K2O为0.22、0.06、0.34kg/株达到最大产量12.02kg/株。
The effects of different nitrogen (N), phosphorus (P) and potassium (K) ratios on the jujube yield were studied using “3414” fertilization program with jujube and “July fresh” as test materials. According to the single factor, the second factor and the third factor regression analysis, the best yield and maximum yield under the relative amount of fertilizer of “jujube fresh” were obtained. The results showed that the combination of N, P and K could significantly increase the yield of jujube “fresh july ” with the order of K> N> P, and the optimum amount of fertilizers (N, P2O5, K2O 0.23,0.12,0.2kg / plant), the maximum yield of N, P2O5, K2O was 0.22,0.06,0.34kg / plant and the maximum yield was 12.02kg / plant.