寒地黑土区春季施肥期对紫花苜蓿生产性能及营养品质的影响
肖知新,王洋,刘国富,巩皓,李丹丹,巩林,白珍建,崔国文

Effects of Fertilizing Time in Early Spring on Alfalfa (Medicago sativa) Production Performance and Nutritional Quality in Mollisol Area in Cold Region
XIAO ZhiXin,WANG Yang,LIU GuoFu,GONG Hao,LI DanDan,GONG Lin,BAI ZhenJian,CUI GuoWen
表1 试验地0—20 cm土层土壤养分理化特征
Table. 1 Physical and chemical characteristics of soil nutrients in 0-20 cm soil layer
pH 有机质
Organic matter
(g·kg-1)
全氮
Total nitrogen
(g·kg-1)
速效磷
Available phosphorus (mg·kg-1)
速效钾
Available potassium (mg·kg-1)
碱解氮
Alkali-hydrolyzable nitrogen (mg·kg-1)
5.36 23.56 1.45 11.40 135.80 134.82