硫酸銨是一種優(yōu)良的氮肥(俗稱肥田粉),適用于一般土壤和作物,能使枝葉生長(zhǎng)旺盛,提高果實(shí)品質(zhì)和產(chǎn)量,增強(qiáng)作物對(duì)災(zāi)害的抵抗能力,可作基肥、追肥和種肥。下面,
氫氧化鉀廠家小編就給大家介紹下施用硫酸銨的五大禁忌。
Ammonium sulfate is an excellent nitrogen fertilizer (commonly known as fertilizer powder), which is suitable for general soil and crops. It can make branches and leaves grow vigorously, improve fruit quality and yield, enhance the resistance of crops to disasters, and can be used as base fertilizer, topdressing and seed fertilizer. Next, the potassium hydroxide manufacturer will introduce the five taboos of using ammonium sulfate.
1、盡量不要將硫酸銨施用在水田里。
1. Ammonium sulfate should not be used in paddy fields.
因?yàn)樵谘退畻l件下,土壤會(huì)嚴(yán)重缺氧,硫酸銨施用后,其中的硫酸根離子會(huì)被還原成硫化物。硫化物濃度積累過高可使植物根系受害而死亡。
Because the soil will be seriously anoxic under flooding conditions, the sulfate ions in the soil will be reduced to sulfide after the application of ammonium sulfate. If the concentration of sulfide is too high, the plant roots will be damaged and die.
2、硫酸銨屬于酸性肥料,長(zhǎng)期施用能提高土壤的酸性,因此硫酸銨不適宜在酸性土壤上施用。
2. Ammonium sulfate is an acid fertilizer. Long term application can improve the acidity of soil, so ammonium sulfate is not suitable for application on acid soil.
在南方酸性土壤上施用時(shí)應(yīng)注意配合施用草木灰或磷礦粉、鈣鎂磷肥等。在北方石灰性土壤上施用,為防止土壤中的鈣離子與硫酸根結(jié)合生成難溶性的硫酸鈣,引起土壤板結(jié),應(yīng)注意配合施用有機(jī)肥料。
When applying on acid soil in the south, attention should be paid to the application of plant ash or phosphate rock powder, calcium magnesium phosphate fertilizer, etc. In order to prevent calcium ions in the soil from combining with sulfate radical to form insoluble calcium sulfate and cause soil hardening, organic fertilizer should be used in combination with calcareous soil in the north.
3、硫酸銨可以用作基肥、種肥和追肥。
3. Ammonium sulfate can be used as base fertilizer, seed fertilizer and topdressing fertilizer.
作基肥時(shí)要深施覆土,以利于作物吸收。作種肥時(shí)施用量不宜過大,控制不要超過每3公斤。作追肥是適宜的施用方法,要根據(jù)不同土壤類型確定硫酸銨的追肥用量。對(duì)保水保肥性能差的土壤,要分期追施,每次用量不宜過多;對(duì)保水保肥性能好的土壤,每次用量可適當(dāng)多些。土壤水分多少也對(duì)肥效有較大的影響,特別是旱地,施用硫酸銨時(shí)一定要注意及時(shí)澆水。在水田作追肥時(shí),則應(yīng)先排水落干,并且要注意結(jié)合耕耙同時(shí)施用。
When it is used as base fertilizer, it should be deeply covered with soil to facilitate the absorption of crops. The amount of seed fertilizer should not be too large, and should not exceed 3 kg per mu. As top dressing is a suitable application method, the amount of ammonium sulfate should be determined according to different soil types. For the soil with poor water and fertilizer conservation performance, it is necessary to apply topdressing by stages, and the amount used each time should not be too much; For the soil with good water and fertilizer conservation performance, the dosage can be appropriately increased each time. The amount of soil water also has a greater impact on the fertilizer efficiency, especially in dry land. When applying ammonium sulfate, we must pay attention to timely watering. When topdressing in paddy field, drainage and drying shall be carried out first, and it shall be applied together with tillage and harrow.
4、不宜在同一塊耕地上長(zhǎng)期施用硫酸銨
4. It is not suitable to apply ammonium sulfate on the same piece of farmland for a long time
不宜在同一塊耕地上長(zhǎng)期施用硫酸銨,否則土壤會(huì)變酸造成板結(jié)。如確需施用時(shí),可適量配合施用一些石灰或有機(jī)肥。但須注意硫酸銨和石灰不能混施,以防止硫酸銨分解,造成氮素?fù)p失,一般兩者的配合施用要相隔3~5天。
It is not suitable to apply ammonium sulfate on the same cultivated land for a long time, or the soil will become acidic and cause hardening. If necessary, some lime or organic fertilizer can be applied properly. However, it should be noted that ammonium sulfate and lime should not be mixed to prevent ammonium sulfate from decomposing and causing nitrogen loss. Generally, the combined application of the two should be separated by 3-5 days.
5、不能將硫酸銨與其他堿性肥料或物質(zhì)接觸或混合施用
5. Ammonium sulfate shall not be used in contact with or mixed with other alkaline fertilizers or substances
不能將硫酸銨肥料與其他堿性肥料或堿性物質(zhì)接觸或混合施用,以防降低肥效。
Ammonium sulfate fertilizer shall not be used in contact with or mixed with other alkaline fertilizers or alkaline substances to prevent reducing fertilizer efficiency.
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