中国铁路学校概览中国铁路学校的历史课程和未来发展
0 2025-01-21
春耕施肥的技巧与禁忌,务必牢记!有需要的朋友们,赶紧来了解这些要点吧!
1.施尿素后勿立即浇水
施入尿素后,不宜立即浇水,以免酰胺随水流失。避免在雨季施用。
2.果树慎用硝酸铵
硝酸铵过量会中毒果树,应尽量减少或不使用。
3.避长期施硫酸铵
长期施硫酸铵会使土壤酸性增加,破坏土壤结构;在碱性土壤中则可能导致板结。
4.微肥不可独大
虽然锌、钼等微元素重要,但切勿忽略其他营养,对作物造成缺乏。
5.碱性肥料与氮混用谨慎
碱性肥料与氯化铵等混用易挥发损失氨气降低效率。
6.化肥与根瘤菌需分开
化肥腐蚀力强,混合菌肥杀伤活菌影响效果。
7.尿素、碳铵不可并行
尿素需转化为铵态才能被吸收,而碳铵加速了这种转化过程中的挥发损失,因此不能混合使用。
8.碳铜不配菌剂共伴行
碳铜散发氨气对活菌有害,因此不得混合使用。
9.acid & alkali fertilizer should not be mixed
acidic and alkaline fertilizers react, causing nitrogen loss and reduced effectiveness.
10.unfermented manure is forbidden
using unfermented manure can cause root burn or ammonia gas hazards to young seedlings, especially for tomatoes.
11.high-concentration fertilizers should not be applied at once
overloading on high concentration fertilizers can damage roots and hinder plant growth.
12.phosphorus fertilizer must not be broadcasted or top-dressed
phosphorus has poor mobility in soil; broadcasting or surface application leads to fixation, reducing effectiveness.
In summary, these are the principles of spring fertilization; interested farmers please refer to them, and welcome to add more points for exchange!