1.药物选择：按照常理，找出病因即可对症下药，但实际情况却并非那么简单。传统上，人们对植物的“缺素”采用施加硫酸亚铁、硫酸锌、硫酸锰和硫酸铜的办法加以补充，但是由于土质、气候和作物吸收特点的不同，往往起不到相应作用，适得其反，甚或破坏地力、造成地块板结和环境污染。

Drug selection: according to the common sense, finding out the cause of the disease can be the right medicine, but the actual situation is not so simple. Traditionally, people use ferrous sulfate, zinc sulfate, manganese sulfate and copper sulfate to supplement the "deficiency" of plants. However, due to the different characteristics of soil, climate and crop absorption, it often fails to play a corresponding role, which is counterproductive, or even destroys soil fertility, resulting in land consolidation and environmental pollution.

我国的北方土壤多呈现碱石灰性，本身具有很强的氧化作用，硫酸亚铁、硫酸锌、硫酸锰和硫酸铜极易被氧化或作用为氢氧化物沉淀而不被植物吸收利用，沉积于土壤之中造成地块板结;我国南方种植的多为水稻型作物，需要适时、及时地排放水以适应于植物生长的要求，加上多雨，硫酸亚铁、硫酸锌、硫酸锰和硫酸铜等为无机化工产品，符着力极低，渗透性弱，作物对之吸收缓慢，因此，大多随水造成流失，产生环境污染。

The soils in northern China are mostly alkaline calcareous and have strong oxidation. Ferrous sulphate, zinc sulphate, manganese sulphate and copper sulphate are easily oxidized or precipitated as hydroxides without being absorbed and utilized by plants, which are deposited in the soil and cause land consolidation; Most of the crops planted in southern China are rice type crops, which need timely and timely drainage to meet the requirements of plant growth. In addition, it is rainy, ferrous sulfate, zinc sulfate, manganese sulfate and copper sulfate are inorganic chemical products, which have extremely low compliance, weak permeability and slow absorption by crops. Therefore, most of them are lost with water, resulting in environmental pollution.

现代科学种植中采用有机元素肥料施肥，效果极佳。有机产品符着力强，渗透性快，易被植物吸引利用，而且稳定性和适用范围也很宽广，符合作物吸收的特点，适应于植物的吸收胃口。更重要的是不会破坏土壤的固有结构，不会破坏地力，不造成环境污染和任何危害。

The organic fertilizer is used in modern scientific planting with excellent effect.Organic products are strong, fast permeability, easy to be attracted and used by plants, and the stability and scope of application is also very broad, in line with the characteristics of crop absorption, adapt to the absorption appetite of plants.More importantly, it will not destroy the inherent structure of the soil, will not destroy the soil, do not cause environmental pollution and any harm

2.采用途径与时间

Approach and time of adoption

1 )根施：可在晚冬或初春时期，这时候施入的肥料既是对过去的补充，也是对未来的预防，用量多少可根据过去病害的严重程度来决定。

Root application: late winter or early spring, when fertilizer is applied to both supplement the past and prevent the future. The amount of fertilizer applied can be determined by the severity of the past disease

2)喷施：可在初芽或未蕾时期和有病症初现期进行，然后隔两周加强一次。病害严重时可月喷三至四次。

Spraying: it can be carried out at the initial bud or non bud stage and the initial stage of disease, and then strengthened every two weeks. When the disease is serious, it can be sprayed three to four times a month.

3)钻孔：在晚冬或初春时期施用.好，这时候植物容易得到修复，由于这种方法，树木受到伤害，所以用药中应该加入适量的硼元素，以使树木伤口迅速愈合并避免感染。

Drilling: It is best applied in late winter or early spring, when plants are easy to repair. Trees are damaged in this way, so boron should be added appropriately to allow the trees to heal quickly and avoid infection.

4)吊针：可在植物生长旺期或病害严重时注入。这种方法的配药非常重要，因为植物对药剂的吸收缓慢且不均匀，容易出现局部用量过度，局部药剂不到的现象。

Hanging needle: it can be injected in the peak period of plant growth or when the disease is serious. This method of dispensing is very important, because the plants absorb the medicine slowly and unevenly, and it is easy to cause the phenomenon of excessive local dosage and insufficient local medicine.

3.几种药物的介绍

Introduction of several drugs

1)硫酸亚铁、硫酸锌、硫酸锰和硫酸铜

Ferrous sulfate, zinc sulfate, manganese sulfate and copper sulfate

这几种无机盐都不易在北方的碱石灰性土壤中使用，因为一旦土壤的pH值大于5，它们均沉淀为氢氧化物。尤其是硫酸亚铁，不仅沉淀而且极易被氧化为三价高铁甚或在pH值在3.7的偏酸性土壤中也完全沉淀，起不到任何的“补素”效果，相反，会对土壤造成污染和板结。因此，无机盐的使用只能在叶面喷施时起到短暂的作用。

These inorganic salts are not easy to use in the northern alkali calcareous soil, because once the pH value of the soil is greater than 5, they all precipitate into hydroxides. In particular, ferrous sulfate not only precipitates, but also is easily oxidized to trivalent high iron, or even completely precipitates in the slightly acidic soil with pH value of 3.7, which can not play any "nutrient supplement" effect. On the contrary, it will cause pollution and hardening to the soil. Therefore, the use of inorganic salts can only play a temporary role in foliar spraying.

2 )普通有机元素肥

Common organic element fertilizer

这种肥料是普通的有机酸( 如醋酸、乳酸、果酸和枸橼酸等或是这些酸类的混合)和金属离子的结合，这种产品用在叶面喷施上的功效和稳定性能介乎无机盐类和有机螯合元素肥之间，但用在植物钻孔塞片的片剂中因为含量高而作用效果相当甚或超过有机螯合元素肥。

This fertilizer is a common organic acid( Such as acetic acid, lactic acid, fruit acid and citric acid, or the combination of these acids) and metal ions, the efficacy and stability of this product used in foliar spraying is between inorganic salts and organic chelating element fertilizer, but the effect of this product used in plant drilling plug tablets is equivalent or even more than that of organic chelating element fertilizer due to its high content.

3) EDTA-Fe螯合肥：相较无机盐类，这种肥料的使用表现出了良好的应用效果。使用范围宽到可在酸性，中性土壤中使用，且易被植物吸收利用。

EDTA-Fe Chelate fertilizer : compared with inorganic salts, this kind of fertilizer shows good application effect. It can be widely used in acidic and neutral soil, and can be easily absorbed and utilized by plants.

4) DTPA-Fe螯合肥：与EDTA-Fe螯合肥属于一个系列，性能和使用效果与之相当，但造价昂贵，可根据实际情况选择使用。

DTPA-Fe Chelate fertilizer: it belongs to a series with EDTA Fe Chelate fertilizer, and its performance and application effect are equivalent, but its cost is expensive, so it can be selected according to the actual situation.

5)EDDHA-Fe螯合肥：目前，在我国市场经过几年发展，已在经作区逐渐推广，但在欧、美、日本等国外农业发达国家备受推崇和青睐。是目前全球值得广泛推广的植物补铁制剂。

Eddha Fe: at present, After several years of development in China's market, has been gradually promoted in the economic area, but in Europe, the United States, Japan and other foreign agricultural developed countries are highly respected and favored.It is a plant iron supplement preparation worthy of extensive promotion in the world at present.

EDDHA-Fe为棕红色粉末状固体，水溶液呈血红色，pH值在8左右。本产品的特点是：水溶性好、附着力强，渗透快，极易被植物吸引利用，而且本产品稳定性和适用范围极佳，可在pH3-10之间甚至更宽的范围内长期保持稳定状态。

EDDHA-Fe is a reddish brown powdery solid with a blood-red aqueous solution and a pH value of about 8.This product is characterized by good water solubility, strong adhesion, fast penetration, easy to be attracted by plants, and the stability and application of this product is excellent, can be in PH3-10 or even a wider range of long-term stable state.

EDDHA-Fe的另一特点是有机质含量很高，在晚冬和早春使用可起到黄、小叶病害的免疫疫苗作用，对于已发生的黄、小叶病害,其治愈效果具有其它药剂无可取代的作用。由于其配伍性、渗透性和稳定性极佳，特别适应于果树营养注射液的配制。

Another characteristic of EDDHA-Fe is its high content of organic matter. It can be used as an immune vaccine against yellow and lobular diseases in late winter and early spring. For the yellow and lobular diseases that have occurred, its curative effect is irreplaceable by other drugs. Because of its excellent compatibility, permeability and stability, it is especially suitable for the preparation of fruit nutrition injection.

EDDHA-Fe可进行叶面喷雾，亦可作为基肥、追肥使用，与其它肥料农药可配合使用。

EDDHA-Fe can be used as foliar spray, can also be used as base fertilizer, topdressing, can be used in conjunction with other fertilizers and pesticides.