密度和施肥对旱地马铃薯干物质积累、产量和水肥利用的影响

柳燕兰, 郭贤仕, 张绪成, 马明生, 王宏康

Effects of planting density and fertilization on dry matter accumulation, yield and water-fertilizer utilization of dryland potato

LIU Yan-Lan, GUO Xian-Shi, ZHANG Xu-Cheng, MA Ming-Sheng, WANG Hong-Kang

表5 不同栽培模式下马铃薯块茎膨大前后干物质积累与转运

Table 5 Dry matter distribution and accumulation before and after potato tuber expansion under different cultivation modes

年份 Year	处理 Treatment	块茎膨大前干物质转运量DMT (kg hm^-2)	块茎膨大前干物质转运率DMTE (%)	块茎膨大后同化物输入块茎量PEA (kg hm^-2)	同化物对块茎的贡献率CPAT (%)
2017	CK	2800 b	47.07 a	2406 c	46.22 c
	YE	2879 b	25.66 b	5046 a	63.67 a
	HY	3207 a	29.57 b	4765 b	59.78 b
2018	CK	2124 b	70.03 a	2747 b	56.39 c
	YE	2427 a	36.38 b	4662 a	65.76 a
	HY	2401 a	35.74 c	4606 a	65.73 a
2019	CK	2107 b	68.75 a	3111 b	59.61 b
	YE	2236 a	34.11 b	4654 a	67.55 a
	HY	2298 a	33.68 b	4612 a	66.74 a