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大棚防虫网种植番茄需要怎么布置?
网址:https://www.shengjiewangye.com    发布时间:2020-05-21
1、爬坡太低,甚至不可能。地面温度低,湿度高,番茄根系处于这样的环境中,尤其是在冬季和春季,根系发育缓慢,甚至产生根腐病。如果它是轻的,产量将减少,如果它是重的,产量会严重下降。
1. The climb is too low or even impossible. The temperature of the ground is low and the humidity is high. The root system of tomato is in such an environment, especially in winter and spring. The root system develops slowly and even produces root rot. If it is light, the output will be reduced. If it is heavy, the output will be seriously reduced.
2、受精有很大的盲目性。不施基肥或少施基肥都容易导致田间打洞,后期不能结果。另一个是底肥太大,氮肥太高,生物制剂的有机肥太低(未成熟的鸡鸭粪有机肥,充其量是一点氮肥,但也容易产生氨、肥和盐)导致番茄叶片肥大。叶片肥大的直接原因是营养生长过度、果实膨大缓慢和番茄果实不开放。土壤有机质含量低,矿物质含量低转化,导致肥料吸收率低。过大的叶片会造成枝叶间的渗透性差,下部容易产生严重的灰霉病。
2. Fertilization has great blindness. It is easy to make holes in the field without or with less basal fertilizer, but it will not bear fruit in the later stage. The other is that the base fertilizer is too large, the nitrogen fertilizer is too high, and the organic fertilizer of biological agents is too low (immature chicken and duck manure organic fertilizer, at best, is a little nitrogen fertilizer, but it is also easy to produce ammonia, fertilizer and salt) which leads to the hypertrophy of tomato leaves. The direct causes of leaf hypertrophy are excessive nutrition growth, slow fruit expansion and non opening of tomato fruit. Soil organic matter content is low, mineral content is low conversion, resulting in low fertilizer absorption rate. Too large leaves will cause poor permeability between branches and leaves, and the lower part is easy to produce serious grey mould.
3、修剪和稀疏树叶是不合理的。有些叶子渗透力差,有些叶子脱粒过度,导致下部没有叶子,果实饱满。叶片的致密渗透性差,由于养分转移而没有足够的动力来扩大果实,下部容易形成灰色霉菌;底部脱粒过重的叶片光合能力较低也会导致果实膨大缓慢和颜色变化。
3. Pruning and thinning leaves is unreasonable. Some leaves have poor permeability, some of them are over threshed, resulting in no leaves at the bottom and full fruits. The density and permeability of leaves are poor, and there is not enough power to expand the fruit due to nutrient transfer, so the lower part is easy to form gray mold; the lower photosynthetic capacity of leaves with excessive threshing at the bottom will also lead to slow fruit expansion and color change.
蔬菜大棚防虫网
4、浸渍花药使用不当。在不同的季节和不同的天气条件下,应该使用不同浓度的浸泡花药。如果阴天和晴天天气相同,温度相同,很容易造成各种不正常的现象,如粘连或谷物暴露,这不仅会影响商品价值,还会影响产量。
4. Improper use of impregnated anthers. In different seasons and weather conditions, different concentrations of soaking anthers should be used. If the weather is the same in cloudy and sunny days, and the temperature is the same, it is easy to cause various abnormal phenomena, such as adhesion or grain exposure, which will not only affect the commodity value, but also affect the output.
5、昆虫根腐病无法明确识别,疾病被不加区别地对待。一方面,用药不正确,增加了投资成本;另一方面,它拖延了机会,错过了治疗时间,无法弥补损失。例如,一些农民由于农药浓度过高而直接焚烧番茄根。
5. The root rot of insects can not be identified clearly, and the diseases are treated indiscriminately. On the one hand, incorrect medication increases the investment cost; on the other hand, it delays the opportunity, misses the treatment time, and cannot make up for the loss. For example, some farmers burn tomato roots directly because of the high concentration of pesticides.
6、广泛的现场管理。浇水量大而少,温度控制不当,导致一些番茄植株过度生长,一些植株出苗,一些植株落花落果。夏秋茬在高温下不需要大棚防虫网,这导致了番茄产量的减少和对日晒伤的易感性。温室内不使用网,粉虱、烟粉虱等害虫容易滋生,导致多种TY病毒。
6. Extensive site management. Large and small amount of water and improper temperature control lead to excessive growth of some tomato plants, emergence of some plants, flower and fruit falling of some plants. In summer and autumn, there is no need for insect net in greenhouse, which leads to the decrease of Tomato Yield and the susceptibility to sunburn. There is no net in greenhouse, and pests such as whitefly and Bemisia tabaci are easy to breed, resulting in a variety of ty viruses.
7、忽视微量元素肥料的使用。大多数农民只注重氮、磷、钾等大量元素的利用,而忽视硼、钙、镁、锌、铁等微量元素的利用,导致番茄营养严重缺乏,或绿叶黄化,丢失或果实异常皲裂,严重影响果实品质。
7. Neglect the use of microelement fertilizer. Most farmers only pay attention to the use of nitrogen, phosphorus, potassium and other elements, but ignore the use of boron, calcium, magnesium, zinc, iron and other trace elements, resulting in a serious lack of nutrition, or chlorosis, loss or abnormal chapped fruit, seriously affecting the quality of fruit.
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