氮肥施用量对机插优质晚稻产量和稻米品质的影响

唐健,唐闯,郭保卫,张诚信,张振振,王科,张洪程,陈恒,孙明珠

Effect of nitrogen application on yield and rice quality of mechanical transplanting high quality late rice

Jian TANG,Chuang TANG,Bao-Wei GUO,Cheng-Xin ZHANG,Zhen-Zhen ZHANG,Ke WANG,Hong-Cheng ZHANG,Heng CHEN,Ming-Zhu SUN

表5 不同氮肥施用量下优质晚稻稻米淀粉RVA谱特征值(2018)

Table 5 RVA profile characteristics of high quality late rice under different nitrogen application rates (2018)

品种 Cultivar 处理 Treatment 峰值黏度 Peak viscosity (cP) 热浆黏度 Trough viscosity (cP) 崩解值 Breakdown (cP) 最终黏度 Final viscosity (cP) 消减值 Setback (cP) 糊化温度 Pasting temperature (℃) 美香新占 N0 3073.0 Aa 1777.5 Aa 1295.5 Aa 3002.5 Aa -70.5 Dd 75.13 Bb Meixiang xinzhan N1 2860.0 ABb 1691.5 ABab 1168.5 ABb 2865.0 ABb 5.0 Cc 75.70 ABb N2 2727.0 Bbc 1676.5 ABb 1050.5 Bc 2749.0 BCc 22.0 Bb 76.65 ABb N3 2644.5 Bc 1608.5 Bb 1036.0 Bc 2694.0 Cc 49.5 Aa 78.23 Aa 泰优398 N0 3322.0 Aa 2036.0 Aa 1286.0 Aa 3134.5 Aa -187.5 Dd 75.15 Ab Taiyou 398 N1 3025.0 ABb 1958.0 ABa 1067.0 Bb 2946.5 ABb -78.5 Cc 75.48 Ab N2 2794.0 ABbc 1792.5 BCb 1001.5 BCc 2833.5 Bbc 39.5 Bb 76.35 Aab N3 2641.0 Bc 1657.0 Cc 984.0 Cc 2745.0 Bc 104.0 Aa 77.33 Aa 天优华占 N0 2941.5 Aa 1839.0 Aa 1102.5 Aa 3093.5 Aa 152.0 Cd 76.75 Ab Tianyouhuazhan N1 2862.0 ABa 1838.0 Aa 1024.0 ABb 3022.5 Aab 160.5 Cc 77.13 Ab N2 2722.5 ABb 1782.0 Ab 940.5 Bc 2920.5 Ab 198.0 Bb 78.58 Aa N3 2668.0 Bb 1728.50 Ab 939.5 Bc 2896.5 Ab 228.5 Aa 78.78 Aa 黄华占 N0 3075.5 Aa 1835.0 Aa 1240.5 Aa 2923.5 Aa -152.0 Dd 72.50 Bb Huanghuazhan N1 2895.5 ABb 1759.5 Aab 1136.0 ABb 2805.0 ABb -90.5 Cc 73.65 ABb N2 2785.0 Bbc 1696.0 Ab 1089.0 Bbc 2747.5 Bb -37.5 Bb 74.15 ABab N3 2698.0 Bc 1638.0 Ab 1060.0 Bc 2740.5 Bb 42.5 Aa 75.63 Aa