In the July and August flowering of peanuts, the yellow leaf phenomenon often occurs during the flowering of the needles and pods. If they are not controlled, they will cause the leaves to fall off and the plants to die, which will have a great impact on the output of peanuts.
First, the cause of physiological iron deficiency caused. Peanut is sensitive to iron. Iron is an indispensable condition for the synthesis of chlorophyll. It is a component of the respiratory-related cytochrome oxidase and peroxidase and participates in the redox process in plants. Under normal conditions, the iron content in the soil is high and iron deficiency does not occur. However, in calcareous soils, the pH value is relatively high. When rainfall or watering is encountered, the soil moisture is in a saturated state, which increases the concentration of hydroxide ions and phosphate ions in the soil and can easily form with iron ions in the soil. Precipitation of iron hydroxide and phosphate, which are difficult to absorb by the roots of crops, severely reduces the effective iron content in the soil. In addition, the effective iron that is not fixed in the soil will also be lost with the runoff produced by rainfall or watering or will be lost to the soil moisture. At this time, it is also the time when the growth and development of peanuts are most prosperous. Because the roots of peanut plants cannot absorb enough iron, they form physiological iron deficiency and produce iron deficiency yellowing. In addition, soil compaction, poor ventilation, and high salinity in the soil and soil solution will increase iron deficiency in peanuts.
Second, the symptoms are characterized by no significant changes in leaf size, chlorotic chlorosis. Because of its low activity and poor mobility in plants, iron is not easily reused. Therefore, when peanuts are deficient in iron, they first show chlorosis of the upper young leaves, while the old leaves and veins of the lower part remain green. When the iron deficiency is severe, the veins of the leaves lose their green and yellow, and all the new leaves of the upper part turn white. , dry off.
Third, control methods with 1% ferrous sulfate (black wolfberry) aqueous solution and humic acid foliar spray foliar spray. Because the peanut leaves are relatively smooth and strong from water, 0.1% neutral detergent powder can be added during spraying to increase adhesion and improve the spraying effect. 5 to 7 days control once, according to the occurrence of continuous control 2 to 4 times. According to their respective soil conditions, fertilizers, watering, and ploughing can be applied in time.
Active Pharmaceutical Ingredients
Refers to the raw materials used in the production of various preparations, and is the active ingredient in the preparations
Various substances prepared by chemical synthesis, plant extraction or biotechnology are used as medicinal powders, crystals, extracts, etc., but cannot be directly taken by patients.
And the drug in powder, crystal, and extract state is processed into administration forms (such as tablets, capsules, injections, pills, ointments, etc.) that are convenient for patients to take, and these administration forms are called drug dosage forms .
Our company can provide various raw materials, anti-cancer raw materials, fitness raw materials, liquids, Cosmetic Raw Materials, Weight Loss Raw Materials, food additives, plant extract powders, aphrodisiac raw materials, hair loss raw materials, Vitamins, etc.
Nootropics Powder,Clenbuterol Hcl,Hair Loss Treatment Powder,Active Pharmaceutical Ingredients
XI AN RHINE BIOLOGICAL TECHNOLOGY CO.,LTD , https://www.xianrhinebiotech.com