人工栽培荠菜,一般以秋播为主。与野生荠菜一样,10月下旬至翌年3月中旬采收供应,3月中旬以后则抽苔开花,失去食用价值。春季栽培,则可使荠菜的供应期延迟到4～5月份。其栽培技术要点是: 1.选择品种 应选择耐热力强,抽苔较晚的散叶荠菜;板叶荠菜抽苔早,不宜春播。 2.适期播种 可在2月上旬至4月下旬播种,尤以3月中旬最为适宜,播种过早,则温度较低,出苗不齐发棵慢,营养生长不良,易导致抽苔,品质差。播前要求耕翻整地,每亩施腐熟人畜粪2500～3000公斤作基肥,并将地做成深沟高畦。通常采用撒播,每亩播种量50～100克。因荠菜种子细小,播种时可以拌适量的细土或细沙子,以保证播种均匀。播种后不需再耙 Shepherd’s purse cultivation, usually based on autumn sowing. As with the wild shepherd’s purse, the harvest was collected from late October to mid-March of the following year, and after mid-March, bolting and mowing lost their edible value. Spring cultivation, you can delay the supply of shepherd’s purse to 4 to May. The main points of its cultivation techniques are: 1. Select varieties should choose heat-resistant, bolting late Shepherd’s Purse; leaf shepherd’s purse bolting early spring should not be sowing. 2. Sowing can be sown in early February to late April planting, especially in mid-March the most suitable, sowing too early, the temperature is low, the emergence of unspoken hair slowly, poor vegetative growth, can lead to bolting, quality difference. Before sowing, plowing and tidy up the land, 2500 mu ~ 3000 kilograms of manure and manure applied per mu were used as basal fertilizer, and the land was made into deep ditch high trowel. Usually broadcast sowing, seeding per acre 50 to 100 grams. Due to the small shepherd’s purse seeds, sowing can be mixed with fine soil or fine sand, to ensure sowing uniform. Do not need to rake after sowing