商河无土栽培技术-无土栽培营养液比例调配-在线解答

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商河无土栽培技术-无土栽培营养液比例调配-在线解答
       无土栽培的概念及其特点?无土栽培是近几年来发展起来的一种作物栽培新技术。作物不是栽培在土壤中，而是把作物苗种植在溶有矿物质的水溶液（营养液）里，或在某种栽培基质中，用营养液进行作物栽培。只要有一定的栽培设备和有一定的管理措施，作物就能正常生长，并获得高产量。由于栽培作物不是用天然土壤，而用营养液浇灌来培养作物称之为无土栽培，又称为溶液培养或水培。?无土栽培的特点是以人工创造的作物根系生长环境，取代土壤环境，它不仅能满足作物对养份、水份、空气等条件的需要，而且对些条件要求加以控制调节，以促进作物更好的生长，并获得的产量。所以，无土栽培的作物通常生长发育良好，产量高，品质上乘。?
       无土栽培的优点?由于无土栽培具有可以替代土壤向作物提供水、肥、气、热的全部功能，而且这些功能可以做到比土壤环境更为理想的地步，因此无土栽培表现出有以下的优点：?
（一）产量高??无土栽培方法可以解决土壤种植过程中，水份、空气、以及养份供应的矛盾，尤其是水份和空气往往是一对很难协调的因素。无土栽培能解决这一矛盾。因此产量一般可提高一培以上。?产量比较表? 作物?土壤种植（公斤／亩）?无土栽培（公斤／亩）?相差倍数?菜豆?833?3500?4.2?豌豆?267?1500?9?甜菜?666?2000?3?马铃薯?1212?11666?9.6?甘蓝?985?1363?1.4?莴苣?680?1591?2.3?黄瓜?530?2121?4?番茄?８３３－１６６６?１００００－５００００?
(二)产品品质好??无土栽培的作物，不仅产量高，而且产品品质好。例如，无土栽培的番茄，果形端正，风味好，从各种营养物质的含量看，维生素Ａ、Ｃ均有所增加，各种矿物质养分也有所增加。?无土栽培的花卉了发育良好，不仅香味浓、而且花期长，进入盛花期早，无土栽培的花卉，由于水的蒸发能保持空气的适当湿度，有利于生长，对于某些夏季生长的花卉还有耐高温的作用。?

Shanghe soilless cultivation technology - soilless culture nutrient solution proportion allocation - online solution
The concept and characteristics of soilless cultivation is a new crop cultivation technology developed in recent years. The crops are not cultivated in the soil, but are planted in the mineral solution (nutrient solution) or in some kind of cultivation medium. As long as there are certain cultivation equipment and management measures, crops can grow normally and obtain high yield. Because the cultivation of crops is not natural soil, but the cultivation of crops with nutrient solution irrigation is called soilless cultivation, also known as solution culture or hydroponics. The characteristic of soilless culture is to replace soil environment with artificially created crop root growth environment. It can not only meet the needs of crops for nutrient, moisture, air and other conditions, but also control and adjust the requirements of some conditions, so as to promote the better growth of crops and obtain the yield. Therefore, soilless crops usually grow well with high yield and high quality. A kind of

Advantages of soilless culture: soilless culture can replace soil to provide water, fertilizer, gas and heat to crops, and these functions can be more ideal than soil environment, so soilless cultivation has the following advantages:

（1） High yield soilless cultivation method can solve the contradiction of water, air and nutrient supply in the process of soil planting, especially water and air are often a pair of difficult factors to coordinate. Soilless culture can solve this contradiction. Therefore, the yield can be increased by more than one culture. Yield comparison table The difference times of crop soil planting (kg / mu) soilless cultivation (kg / mu) were: bean 833 3500 4.2 pea 267 1500 9 beet 666 2000 3 potato 1212 11666 9.6 cabbage 985 1363 1.4 lettuce 680 1591 2.3 cucumber 530 2121 4 tomato 833-1666 10000-500 ００?

（2） Good product quality: soilless cultivation of crops, not only high yield, but also good product quality. For example, soilless cultivation of tomatoes, fruit shape, good flavor, from the content of various nutrients, vitamin A, C have increased, a variety of mineral nutrients also increased. The flowers grown in soilless culture are well developed. They not only have strong fragrance, but also have a long flowering period. They enter the full flowering period early. Due to the evaporation of water, the flowers in soilless cultivation can maintain the appropriate humidity of the air, which is conducive to growth. For some flowers growing in summer, they also have the function of high temperature resistance.