一、早深耕,底肥足板蓝根种植地块,土地一定要深翻,秋季大地封冻前机械深耕25厘米以上,有利于土壤熟化、蓄水保墒。土地封冻后667米~2送土肥4 000千克到田间,堆放盖土。春天地解冻后,将土肥均匀撒人田间。每667米~2施磷肥50千克,再浅耕细耙,地块整平,做好播前的准备。二、适时早播,延长生长期西北地区旱地种植宜在4月上旬播种,也可根据当地气温稳定在12℃时播种,有利于根系深扎,延长生长期。种子选用上年产的带有黑色的新种籽,这时种子成熟度好。种植当年不开花,存放多年 First, as early as deep plowing, at the end of the plantation of Radix Isatis planted land, the land must be deep plowing, frozen ground before the fall of mechanical deep plowing 25 cm or more, is conducive to soil aging, water and soil moisture. After the land is frozen 667 m ~ 2 soil fertilizer 4 000 kg to the field, stacked cover soil. After thawing in spring, the soil will be evenly spread to the field. P fertilizer per 667 m ~ 2 50 kg, and then shallow cultivator fine rake, leveling the ground, do a good job before sowing. Second, timely and early sowing to extend the growth period Dryland planting in Northwest China should sow in early April, but also according to the local temperature stable at 12 ℃ sowing, is conducive to deep roots and extend the growth period. Seeds used in the previous year, with a new black seed, then seed maturity. Planting is not flowering, storage for many years