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试验选用我省番茄主栽品种中杂9 号, 采用4 种施肥处理, 在早春大棚内采取随机区组设计, 地膜复盖, 4 次重复。分别取定植前及番茄生长旺盛期不同施肥处理的土壤, 对其理化性状分析结果表明: A3 处理的速效钾、速效磷含量均最高, A2 处理的全氮和碱解氮含量最高,而速效磷、速效钾、有机质含量均较低;对生长旺盛期不同施肥处理的番茄正常株及筋腐病株叶片的全碳、全钾、全碳/全氮、全钾/全氮、果实中有机酸、总糖含量分析结果表明: 各施肥处理前期筋腐病发生率明显高于中、后期, 其中 A2 处理筋腐病发生率最高, A3、 A1 较低, 说明前期低温, 加之偏施氮肥, 钾肥较少会造成土壤中速效钾、速效磷、有机质含量较低, 番茄全钾/全氮、全碳/全氮较低, 叶片光合作用形成产物较少, 同时贮存到果实中的总糖、有机酸较少、褐变物质聚集形成筋腐。
The experiment selected the tomato variety Zhongza 9 in our province and adopted 4 kinds of fertilization treatments. Randomized block design was adopted in the early spring greenhouses and the plastic film was covered and repeated 4 times. The results of physicochemical properties analysis showed that the contents of available potassium and available phosphorus in A3 were the highest, the contents of total nitrogen and available nitrogen in A2 were the highest, while the contents of available phosphorus , Available potassium and organic matter content were low. The contents of total organic carbon, total potassium, total carbon / total nitrogen, total potassium / total nitrogen and organic acids The results of total sugar content analysis showed that the incidence of stalk rot in early stage of fertilization was significantly higher than that in mid and late stages, of which A2 was the highest, and A3 and A1 were lower, which indicated that low temperature in early stage, partial nitrogen fertilizer and potassium fertilizer Less likely to cause soil available potassium, available phosphorus, organic matter content is low, tomato total potassium / total nitrogen, total carbon / total nitrogen lower leaves less photosynthesis products, while stored in the fruit of the total sugar, organic Less acid, browning material gathered to form a tendon.