Although manganese is a trace element, it plays an important role in the growth and development of Dongkui. Therefore, we must pay attention to the lack of manganese in the cultivation and management. First, the role of manganese 1, manganese is also a component of chlorophyll, and catalyze the synthesis of chlorophyll. 2. Manganese is an activator or inhibitor of various enzymes. It plays an important role in the nutrient transportation and transformation of the trunk of Yang Kui. 3, the metabolism of manganese and nitrogen, and the assimilation of carbohydrates, and the formation of vitamin c have a certain relationship. 2. In the absence of manganese deficiency in manganese deficiency, the formation of chlorophyll in Dongkui Yangmei was hindered and the leaf appeared chlorosis. There are patches of yellow spots between the leaves. Later, the leaves of the whole leaf are yellow, leaving only the veins green. Therefore, a large amount of defoliation in winter affects the results and fruit quality of the following year. Third, the lack of manganese indicators Dongkui Yangmei will be lack of manganese, there are two indicators: First, the soil Mn-deficient indicator: based on the effectiveness of the soil manganese. Effective manganese includes: water-soluble manganese, manganese exchangeable manganese, easily-reduced manganese and so on. If the soil contains 50-100 mg/kg effective manganese, it is low. The soil contains 100-200 mg/kg of effective manganese, which is moderate. More than 200 mg/kg is a high level. The second is the determination of the leaf: less than 20 mg/kg for the lack, 25 to 190 mg/kg for the amount, and more than 300 mg/kg for the excess. Fourth, the reasons for the lack of manganese 1, and the pH of the soil are related. That is: PH6 ~ 6.5 is the critical value of manganese oxidation or reduction, lower is conducive to reduction, higher is conducive to oxidation. Therefore, it is often planted in alkaline or neutral soils, which will produce manganese deficiency; and in the acidic soil, manganese toxicity occurs. 2. The gardening layer is shallow, or the sand is heavy, or the garden with lime and other alkaline fertilizers is easy to lack of manganese. Fifth, correction measures for lack of manganese (A) to improve the soil, such as: 1, the garden to increase organic matter, such as weeds, rice straw, bean stalks, etc., after rot in the garden, can become organic matter, have improved soil pH Good effect. 2. Control the amount of lime used in the garden. 3, according to the soil pH, increase 5-30 kg (kg) of manganese sulfate per hectare. Can also be applied at the same time, manganese sulfate, per hectare blended with 1200 to 1500 kilograms of sulfur powder applied to reduce the soil PH value, can increase the effectiveness of manganese, (b) a rapid method of filling manganese, new shoots when the leaves, According to the lack of manganese, spraying with 0.2% ~ 0.5% manganese sulfate spray once every 7 to 10 days. When necessary, a small amount of lime water may be added to adjust the pH to around 6.3, increase the adhesion, and facilitate the absorption of manganese. 2. Insert solid manganese sulfate into the trunk to achieve faster and better results.
We mainly export European Chinese onions, garlic and ginger.
Fresh yellow onion and red onion size 60-80mm 70-90mm 90-110mm 10kg/net bag, 20kg/net bag or 25kg/net bag (2019 new crop onion)
Peeled yellow onion and red onion size 60-80mm 70-90mm 90-110mm 10kg / box, 20kg / box, filled with nitrogen, storage time of 90 days.
Frozen onion, frozen onion cube, frozen onion ring 10kg/box or 20kg/box Save for 2 years.
We also offer garlic, ginger and peeled garlic
Our onions have been sold in the Netherlands, the UK, Poland, and Italy, and the quality is very good.
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