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秋冬茬番茄对丰富秋冬蔬菜市场及元旦春节市场蔬菜供应有着重要意义。但秋冬茬栽培,前期气温高,雨水多,很容易出现“疯长”现象。因此,防止“疯长”对秋冬茬番茄的高产栽培起着重要作用。 一、“疯长”的原因 1.气温高,浇水次数和雨水过多,是造成“疯长”的主要原因。 秋冬茬番茄前期高温多雨,昼夜温差小,特别容易造成“疯长”。 2.氮肥施用过多,整枝打杈不及时也会造成“疯长”。 番茄一生中虽需求氮素较多,但过度施用氮肥也容易造成“疯长”。番茄开花以后,进入了营养生长和生殖生长并进的时期,在栽培上如不及时整枝打杈,会造成营养生长与生殖生长失调,也会引起“疯长”。 二、防止“疯长”的措施
Autumn and winter stubble tomatoes on the rich autumn and winter vegetable markets and New Year’s Day market vegetables supply is of great significance. However, crop cultivation in autumn and winter, pre-high temperature, rain and more, it is prone to “crazy long” phenomenon. Therefore, to prevent “crazy” on autumn and winter stubble cultivation of high yield plays an important role. First, the “crazy” reasons 1. High temperatures, watering times and excessive rainfall is caused by “crazy” the main reason. Autumn and winter stubble tomato hot and humid early, small temperature difference between day and night, particularly vulnerable to “crazy long.” 2. Nitrogen fertilizer too much, pruning twig does not timely result in “crazy long.” Although the demand of tomato nitrogen is more, but excessive use of nitrogen can easily lead to “crazy long.” Tomato flowering, into the period of vegetative and reproductive growth go hand in hand if not timely pruning, it will cause malnutrition and reproductive growth disorders, can also cause “soaring.” Second, to prevent “crazy” measures