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科学合理的苗床施肥,是保证烟苗适时、整齐健壮的关键措施。根据多年的工作实践,我们摸索出一套比较安全实用的苗床施肥技术。供烟农朋友们参考。 一、适用于苗床的肥料种类适于烤烟苗床施用的化学肥料以三元素复合肥(氮、磷、钾各含15％为优)、磷酸二铵、硝酸磷肥、尿素、硫酸钾等比较适宜。有机肥可用农家肥、圈肥、鸡粪、饼肥等。 二、苗床肥料的要求 烟苗要求根系发达、叶片肥厚、抗病性强,因此苗床肥料的比例以控制在氮磷钾1:1:1为宜。粗肥和圈肥因堆沤的垫圈原料不同,其所含氮、磷、钾营养量不一样,但也要有氮、磷、钾的大致比例,使之尽可能营养平衡。 化肥是速效肥,施用关键是均匀。农家肥虽有养分完
Scientific and rational seedbed fertilization, is to ensure timely and neat, neat and tidy key measures. According to many years of practice, we have found a more safe and practical fertilization technology of seedbed. For tobacco farmers friends for reference. First, the type of fertilizer applied to the seedbed Suitable for chemical fertilizer applied to the seedbed of flue-cured tobacco to three elements of compound fertilizer (nitrogen, phosphorus and potassium each containing 15% is excellent), diammonium phosphate, nitrate, urea, potassium sulfate more appropriate. Organic fertilizer available farmyard manure, circle fertilizer, chicken manure, cake and so on. Second, seedbed fertilizer requirements Seedlings developed roots, leaf hypertrophy, disease resistance, so the proportion of seedbed fertilizer to control the NPK 1: 1: 1 is appropriate. Due to the different raw materials of the heap and raw material, the amount of nitrogen, phosphorus and potassium contained in the raw material and the fat of the heap is not the same, but the approximate proportion of nitrogen, phosphorus and potassium should be balanced so that the nutrient is as balanced as possible. Fertilizer is quick-acting fertilizer, application of the key is uniform. Although finished manure nutrition