[:en]The Zamioculcas is a common foliage plant in the family and office. Many of the flower trees of the flower lovers have found that the leaves are yellow after raising the time. I don’t know what the Zamioculcas leaves are yellowing. As long as you find the right reason, it is not difficult to solve the problem of yellowing of the Zamioculcas leaves. Let’s first understand the basic knowledge of the Zamioculcas. Don’t look too fast. It is very important to know the habits of flower cultivation.
The Zamioculcas is a perennial evergreen plant native to Tanzania in the east. The plant height can reach 80 cm. There are fat and fleshy tubers in the ground, with a diameter of 5 to 8 cm, and no stems on the ground. The pinnate compound leaves are large, and they are drawn from the top of the tuber. Each leaf axis has 6 to 10 pairs of opposite or similarly opposite leaflets; the leaflets are oval, thick leathery, dark green, metallic luster, and its shape is like copper coins. name. The buddha flower is green, boat-shaped and has a short inflorescence.
Zamioculcas leaves yellow cause one: water is not appropriate
Zamioculcas sex is warm and dry, relatively drought-tolerant, and should not be sprinkled too much, otherwise the problem of yellowing of leaves will simply occur. Keep it on the balcony of your home. If you live on the third floor or above, you can put the potted Zamioculcas on the wet sand table. Usually you should pay attention to the water on the leaf surface to wash the dust attached to the blade. Care should be taken to give some shading. Indoor maintenance, when the indoor temperature is as high as 33 ° C or more, it is necessary to spray the Zamioculcas several times a day to keep the basin soil slightly moist. In the winter, pay attention to the water spray on the leaf surface and the surrounding environment, so that the relative air humidity can reach more than 50%. In the future, the Mid-Autumn Festival should reduce the watering, or spray water to sprinkle water, in order to facilitate the safe and new winter of the new leaves. In addition, in the winter should pay special attention to the basin soil can not be excessively moist, to dry better, otherwise under low temperature conditions, the basin soil is too simple to cause the roots of the plant to rot, and even the whole plant died.
Zamioculcas leaves yellow cause 2: improper fertilizer
The Zamioculcas is more fertile, but the process of getting fat is determined to be good. During the growing season, the Zamioculcas can be poured 2 to 3 times a month. 02.% urea plus 0.1% potassium dihydrogen phosphate mixture can also be applied to the balanced fertilizer 20-10-20 (20-20-20). 200 to 250 ppm is used in combination with calcium nitrate. In the future of the Mid-Autumn Festival, in order to make the Zamioculcas safe for the winter, nitrogen fertilizer should be stopped and 2 to 3 times of 0.3% potassium dihydrogen phosphate solution should be applied to promote the hardening and filling of the young leaves and new leaves of the Zamioculcas. When the temperature drops below 15 °C, stop topdressing and avoid causing damage to the roots under low temperature conditions.
Zamioculcas leaves yellow cause three: pests
Insect pests are also responsible for the yellowing of the leaves of the Zamioculcas. In an environment with poor ventilation and poor light, the leaves of the Zamioculcas are very simple to suffer from the sucking of scale insects. Control measures: a small number of families, can use sticky tape to stick to the worm body on the Zamioculcas, or use a wet cloth to wipe the living insects on the Zamioculcas. Productive culture, in the nymphal incubation period, can spray 20% of chlorpyrifos WP 1000 times, the insecticidal effect is good.
Zamioculcas leaves yellow cause four: soil problems
The lack of acidity in the soil is also responsible for the yellowing of the leaves of the Zamioculcas. Because of the special climate of the origin of the Zamioculcas, the Zamioculcas has formed a strong ability to resist drought, so the requirement for the quality of the culture medium is better. The culture substrate can be mixed with a small amount of garden soil with peat, coarse sand or washed cinder, and the pH of the soil is adjusted to between 6 and 6.5, showing a slightly acidic condition. Because the tubers of the Zamioculcas are large, the roots are developed, and the pinnately compound leaves are longer, the deeper blue-green porcelain pot or the purple sand pot should be used for planting, but the bottom of the pot should be covered with stones, bricks or bark blocks, and the height is about flower. The depth of the basin is about 1/4, so as to facilitate the creation of a good root environment with breathable drainage. During the growing season, the plants are loosened once a month, and the culture medium is kept well. During the rainy season, it is necessary to check frequently and find that there is water in the basin.[:zh]金錢樹是壹種家庭和辦公室裏邊比較常見的觀葉植物，許多養花愛好者的金錢樹在養了壹段時間之後就發現葉子發黃，不知道金錢樹葉子發黃該怎麽辦了，只要找對原因就不難解決金錢樹葉子發黃的問題了，下面我們先來了解壹下金錢樹的基礎知識，不要看得太快哦，養花對花的習性了解是很重要的。
金錢樹為多年生常綠草本植物，原產於東部的坦桑尼亞。株高可達80厘米。地下具有肥壯的肉質塊莖，直壹徑5～8厘米，地上部分無莖。羽狀復葉大型，自塊莖頂端抽生，每個葉軸有對生或近似對生的小葉6～10對；小葉卵形，厚革質，墨綠色，有金屬光澤，其形狀似銅錢因此得名。佛焰花苞綠色，船形，肉穗花序較短。
金錢樹葉子發黃原因一：灑水不妥
金錢樹性喜暖熱略幹，比較耐幹旱，不宜灑水過多，否則簡單出現葉子發黃問題。居家陽臺上養護，如果家是住在3樓以上，可將盆栽金錢樹擱放在濕的沙盤上，平常要註意經常給葉面噴壹些水，來洗滌附著在葉片上的纖塵，壹起應該註意給予壹些遮陰。在室內養護，當室內的溫度高達33℃以上時，要每天給金錢樹噴水壹次，來保持盆土稍微呈濕潤狀況就可以了。冬天的時分要註意給金錢樹葉面和四周的環境噴水，使相對空氣濕度能到達50％以上。中秋今後要減少灑水，或以噴水代灑水，以利於新抽嫩葉的平安過冬。別的，在冬季應特別註意 盆土不能過分濕潤，以偏幹為好，否則在低溫條件下，盆土過濕更簡單導致植株根系腐爛，乃至全株死亡。
金錢樹葉子發黃原因二：上肥不妥
金錢樹比較喜肥，但是上肥進程中壹定要掌握好度。成長時節可給金錢樹每月澆施2～3次02.%的尿素加0.1%的磷酸二氫鉀混合液，也可施平衡肥20-10-20（20-20-20），濃度在200～250ppm結合硝酸鈣使用。中秋今後，為了使金錢樹能夠平安過冬，應停施氮肥，接連追施2～3次0.3%的磷酸二氫鉀液，來促進金錢樹幼嫩葉軸和新抽葉片的硬化充實。當氣溫降到15℃以下後，要停止追肥，避免造成低溫條件下的肥害傷根。
金錢樹葉子發黃原因三：蟲害
蟲害也是導致金錢樹葉子發黃的原因之壹。在通風不良、光線不好的環境中，金錢樹的葉片十分簡單遭受介殼蟲刺吸的危害。防治辦法：家庭少數種養，可以用透明膠帶粘去金錢樹上的蟲體，也可用濕的布抹去金錢樹上的活蟲體。生產性培養，可在其若蟲孵化盛期，噴灑20%的撲虱靈可濕性粉劑1000倍液，殺蟲效果好。
金錢樹葉子發黃原因四：土壤問題
土壤酸性缺乏也是使金錢樹葉子發黃的原因之壹。因為金錢樹原產地的特別氣候，讓金錢樹形成了較強的抗旱才能，因此對培養基質的要求便是通透性要好。
培養基質可以用泥炭、粗沙或沖洗過的煤渣與少數園土混合而成，並將土壤的pH值調整至6至6.5之間，呈現出微酸性的狀況。因為金錢樹塊莖碩大、根系發達、羽狀復葉較長，所以應該選用底較深的青花瓷盆或紫砂盆來栽種，但盆底部要多墊些石子、磚粒或樹皮塊，高度約為花盆深度的1/4左右，以利於為其營造壹個透氣濾水良好的根部環境。成長時節每月給植株松土壹次，始終保持培養基質通透良好。梅雨時節要勤加檢查，發現盆內有積水現象發生，要及時給予翻盆換土。[:]