魚菜共生系統(tǒng)裏的鉀元素(2)

WaterJAM 2016-08-19

展開全文

Potassium in Your Aquaponics System (Part 2)

魚菜共生系統(tǒng)里的鉀元素（第二部分）

Potassium in Your Aquaponics System

你的魚菜共生系統(tǒng)里的鉀元素

Potassium is almost always deficient in mature aquaponic systemsunless it is supplemented. Plants, and especially flowering and fruitingplants, consume potassium at rates significantly higher than rates of input.This basically means that in order to have healthy plants, you’ll have toartificially bump up the amount of potassium in your system. Miss part 1? Read theIntroduction to Potassiumhere.

除非有足夠的補充，否則幾乎所有的成熟魚菜共生系統(tǒng)都會缺鉀。植物，尤其是開花期和結(jié)果期的植物，消耗鉀的速率明顯快于吸收鉀的速率。這意味著為了植物的健康，你必須人為的向你的系統(tǒng)里添加足量的鉀。

Supplementing Potassium in Your System

為你的系統(tǒng)補充鉀元素

You can do this one of two ways- by adding potassium to your systemsolution, or by applying it foliarly (spraying it on the plant leaves). Addingpotassium to your solution is often the easiest way to supplement potassium,but it can also be problematic. This is because the amount of potassiumyou add to your system isn’t always what is available to your plants. Potassium is being consumed by other organisms in the system and is oftenreacting or interacting with other elements in ways that we don’t expect. Thismeans that our plants can show potassium deficiency symptoms, even if there istechnically plenty of potassium in the system.

你能通過兩種方法里的一種來補鉀——向系統(tǒng)的水里直接加入鉀或噴施葉面鉀肥。前者通常是最簡單的補鉀方法，但也可能引發(fā)問題，因為加到系統(tǒng)里的鉀往往不能全部被植物利用。一部分鉀會被系統(tǒng)里的其他有機(jī)物消耗掉，而且鉀經(jīng)常會以我們不期望的形式與其他元素起化學(xué)反應(yīng)或相互作用。這也就意味著即使從技術(shù)上講系統(tǒng)里有充足的鉀，植物仍然有可能出現(xiàn)缺鉀癥狀。

Findmore information: /blog

Potassium’s Relationship Status: “It’s Complicated”
鉀和其他元素之間的關(guān)系：“太復(fù)雜了”

Potassium has a complicated relationship with other elements- namelyCalcium and Magnesium (both very important nutrients in their own right!).

鉀和其他元素有著說不清道不明的復(fù)雜關(guān)系——它們就是鈣和鎂（兩者都是非常重要的營養(yǎng)元素?。?。

Dr. Nate Storey discussingpotassium in your aquaponics system.

Calcium is the primary nutrient that complicates potassium in manysystems. It is very common in aquaponic systems to use calcium carbonate to“buffer” pH, and even where it isn’t common, there are many areas where wateris hard with calcium based carbonates. This means that calcium isentering the system in the form of fish feed as well as calcium carbonate.While calcium can be deficient in many systems, there are a few where it isabundant to the point that it impacts potassium availability. This means thatwhen there is lots of calcium present, it can reduce a plants ability to takeup enough potassium, leading to deficiencies. The same is also true ofmagnesium, but to a lesser extent.

在很多系統(tǒng)中，鈣是讓鉀元素變得復(fù)雜的主要原因。在魚菜共生系統(tǒng)里，碳酸鈣普遍被用作pH的調(diào)節(jié)劑，就算沒有這么做，很多地區(qū)的水也因碳酸鈣而變得很硬。這就是說鈣會以魚食和碳酸鈣的形式進(jìn)入系統(tǒng)。雖然有些系統(tǒng)會缺鈣，但還是有很多時候鈣會多到影響鉀的可吸收性。所以如果系統(tǒng)里有太多的鈣，植物能吸收的鉀元素就會降低，進(jìn)而引發(fā)缺素癥狀。對于鎂來說也是同樣的道理，只不過程度輕一些。

Seek a Balanced Aquaponics System
尋求魚菜共生系統(tǒng)的平衡點

So, it is important to maintain a balance between these threecontenders if you wish to supplement potassium effectively. We must makesure that we are not supplementing one at the expense of the others. There are two ways to accomplishthis:

所以，如果你想有效的補鉀，維持好這三個互相競爭的元素之間的平衡就很重要了。我們必須確定沒有偏重它們中的任何一個。有兩個方法可以實現(xiàn)這個目標(biāo)：

Balancing inputs (maintaining a balance between Potassium, Calcium and Magnesium additions based on your system’s needs)
Applying one, or all of these nutrients foliarly (essentially bypassing much of the issues with trying to balance nutrients in solution).

1. 平衡好輸入（根據(jù)系統(tǒng)的需求添加鉀、鈣、鎂，維持好它們之間的平衡）

2. 通過葉面肥的形式補充它們中的一個或全部（可以避免很多在嘗試平衡水中營養(yǎng)元素時會出現(xiàn)的問題）

Findmore information: /blog