不同锌肥对旱作马铃薯植株锌的吸收、积累与分配的影响

Chronic Obstructive Pulmonary Disease Diagnosis and Inspection Monitoring

通过大田试验,研究了施用不同锌肥（无机硫酸锌和有机螯合态糖醇锌）对马铃薯＂新大坪＂植株锌的吸收、积累和分配以及对块茎产量的影响。结果表明：出苗后35 d即可观察到马铃薯植株各器官锌浓度的明显差异;在生育期进行的3次喷施显著提高了各器官的锌浓度和积累量,以叶片的增幅最大;硫酸锌处理（T2）和糖醇锌处理（T3）叶片的锌浓度分别于出苗后85 d和75 d达到峰值;出苗后85 d时,T2和T3处理叶片的锌浓度分别比对照（T1）提高了47.88 mg.kg-1和72.24 mg.kg-1,T3比T2提高了24.36 mg.kg-1。至块茎增长末期,T2和T3处理叶片的锌积累量分别比T1增加了1.5倍和4倍,块茎锌素积累量比T1增加37.5%和49.4%。施用锌肥后通过提高马铃薯叶片的锌浓度,促进了叶片的光合作用,进而促进了其它器官的生长发育,最终提高了块茎产量和锌产量,T2和T3处理的块茎产量分别比T1增加了10.6%和22.5%,锌产量分别增加了26.9%和46.0%。＂拌种＋喷施＂的锌肥施用技术法提高了锌向根和茎叶的分配率,降低了向块茎的分配率;施用锌肥提高了地上器官中向地下器官的转运系数。马铃薯种薯和叶片对小分子有机螯合态锌肥糖醇锌的吸收明显优于无机锌肥硫酸锌。

The diagnosis of chronic obstructive pulmonary disease （ COPD ） should be comprehensive consideration of the patient＇s medical history, symptoms and signs and clinical examination. Any have difficulty breathing, chronic cough and expectoration and has a history of exposure to risk factors for disease patients should be considered for COPD. Lung function is required. Is to diagnose COPD gold standard. And attaches great importance to the family. Biological markers of CRP and PCT, Nampt, TNF, ET - 1 - a, IL - 6, IL - 8 has important significance to the diagnosis of COPD. X-ray chest radiograph mainly as to determine the pulmonary complications and with other lung diseases identification purposes. The differential diagnosis of CT cases of doubt and condition assessment has a certain significance. Blood gas check, sputum culture has certain reference value to the diagnosis of COPD.