东北半干旱区滴灌施肥条件下高产玉米干物质与 养分的积累分配特性

侯云鹏,孔丽丽,蔡红光,刘慧涛,高玉山,王永军,王立春

The Accumulation and Distribution Characteristics on Dry Matter and Nutrients of High-Yielding Maize Under Drip Irrigation and Fertilization Conditions in Semi-Arid Region of Northeastern China

YunPeng HOU,LiLi KONG,HongGuang CAI,HuiTao LIU,YuShan GAO,YongJun WANG,LiChun WANG

表1 不同栽培模式下玉米种植密度、肥料用量及各时期施肥比例

Table 1 The planting density, fertilizer rates, application stages and proportions under different cultivation modes of maize

处理 Treatment 种植密度 Planting density (plant/hm2) 施肥量 Fertilizer rate (kg·hm-2) N-P2O5-K2O施用比例 The application proportions of N, P and K fertilizers (%) N P2O5 K2O 基肥 Basal Fertilizer 拔节期 V6 大喇叭口期 V12 开花期 VT 灌浆期 R3 乳熟期 R4 FP 60000 240 126 83 70-100-100 30-0-0 — — — — HY 75000 200 80 100 20-40-30 30-20-30 20-20-20 20-10-20 10-10-0 — SHY 90000 300 120 150 10-50-30 20-10-20 20-10-25 20-10-25 20-15-10 10-5-5