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本文的目的在于从整体生理阐明幼苗干旱锻炼的生理基础,并证明其效果。材料与方法小叶杨(Populus simonii Carr.)种子系内蒙古巴盟治沙站供给。试验采用盆栽,盆高33厘米,直径30厘米。所有盆子均置于露天。每盆装风干土(白畺土与沙子按2:1比例拌匀)16公斤.风干大粪500克,硫酸铵5克,过磷酸钙6克,硫酸钾2克。试验土壤最大容水量为25％(占干土％)。 6月18日播种,20日出苗。试验期间用黄河水浇灌,灌水量及灌水次数,视各生长时
The purpose of this article is to elucidate the physiological basis of seedling drought training from overall physiology and demonstrate its effectiveness. MATERIALS AND METHODS Seeds of Populus simonii Carr. Were supplied from Ba Meng Zhi Sha Station, Inner Mongolia. Test potted, pot 33 cm high, 30 cm in diameter. All pots are placed in the open air. Each pot of air-dried soil (white sand soil and sand by 2: 1 ratio mix) 16 kg dried manure 500 grams, 5 grams of ammonium sulfate, superphosphate 6 grams, 2 grams of potassium sulfate. The maximum soil water content of 25% (dry soil%). June 18 sowing, 20 seedlings. During the experiment with the Yellow River watering, irrigation and irrigation frequency, depending on the time of growth