10%Total saponins of Panax notoginsengNotoginseng Extract is one of the key products of our company, ginseng stem, leaf as raw material, after extraction, concentration, drying and become yellow powder. Notoginseng Extract,Radix Notoginseng Extract,Astragalus Notoginseng Extract,Panax Notoginseng Extract Shaanxi Kepler Biotech Co.,Ltd , https://www.keplerherb.com
Notoginseng
Herbs perennial, up to 60cm tall.Rhizome short, stem erect, smooth glabrous.Leaves palmate compound, long stalks, 3 ~ 4 whorled at stem apex;Leaflets 3 ~ 7, elliptic or oblong obovate, margin serrulate.Born on the slopes of the jungle.Now more cultivated in the elevation of 800 ~ 1000m foot slope or on the gentle slope of the mound.Mainly produced in Yunnan, Guangxi and Sichuan.
Herbs perennial erect, 20-60 cm tall.Taproot fleshy, 1 at most, spindle - shaped.Stems dark green, purplish to apex, glabrous, longitudinally coarsely striated.
Fingerlike compound leaves 3-6 whorled stem apex;Stipules many, clustered, linear, less than 2 mm long;Petioles 5-11.5 cm long, striate, smooth glabrous;Petiole central 1.2-3.5 cm long, lateral 0.2-1.2 cm long, glabrous;The biggest in the middle of the leaf blade membranous, elliptic to pour egg shape long elliptic, 7 to 13 cm long, 2-5 cm wide, apex acuminate to long acuminate, base broadly cuneate to rounded, on both sides of the blade, the smallest elliptic to cone long ovate, 3.5 7 cm long, 1.3 3 cm wide, apex acuminate to long acuminate, base oblique, margin finely serrate,Tooth cusp with short cusp, 1 setae between teeth, setae sparsely along veins on both sides, main and lateral veins raised on both sides, reticulate veins not obvious.
Identification and Prevention of Rice Blast
Rice pyrosis (pyricutaria oryzae Cav.), also known as rice fever, fire cricket, hanging head lice, crickets crickets, etc., in the popular year generally 10-20% yield reduction, severe disease field rice into pieces withered, and even granules are not received. Symptoms of Injury: (1) After the onset of the seedlings, the seedlings turn yellowish-brown and die. They do not form obvious lesions. When wet, they can grow blue-green mildew. (2) There are two main types of leaf spots. One is an acute type lesion, dark green, mostly round or elliptical, with dense blue-green mildew on the plaque. The second is the chronic type of lesions, which are fusiform or long shuttle-shaped, with yellow halos on the periphery, brown interiors, gray centers, and brown necrotic lines that penetrate the lesions and extend on both sides. This is an important feature of this disease. In humid climates, excessive N fertilization, the development of green rice fields prone to acute lesions; and air drying, the disease spread slowly, the general development of acute lesions into chronic type lesions. In addition, there are two kinds: the white point type, which is a white round lesion, which is produced at the initial stage of disease, when the environmental condition is unfavorable; the brown point type is a brown dot, which is mostly confined to the veins and often occurs in disease resistance. Variety: Both types of lesions do not produce conidia. (3) The leaf sheath spots often occur in the part where the leaf sheath is connected with the leaf blade and extend to both the leaf blade and the leaf sheath, namely "leaf pillow". (4) The lesions of stem section occur dark brown or black spots on the stem section. The lesions become black after the ring spreads in the section, causing the stem section to break and the ear to dry. (5) Head and neck lesions often appear light brown or dark green on the panicle in the first section of the ear. Branches or twigs can also be affected, affecting diseased branches. (6) The early onset of grain lesions was easily identified. The lesions were elliptical, dark brown on the edges, and gray in the middle. Control methods: 1. Seed treatment. Rice seeds should be selected from disease-free fields or mild disease fields. Seeds are sterilized with strong chlorine and soaked seeds such as 100 grams are very effective. 2, choose disease-resistant varieties. The selection of disease-resistant varieties is an economic and effective measure for controlling rice blast, and it is also a key measure for comprehensive prevention and control. 3, strengthen the cultivation and management, improve the disease resistance of rice. Ensure basic fertilizers, rational application of nitrogen, phosphorus, and potassium fertilizers to promote the healthy growth of rice plants, and in conjunction with the management of water, create environmental conditions that are not conducive to the occurrence of rice blast disease. 4, seize the key, timely spraying protection. The chemical prevention of rice blast must establish the guiding ideology of "prevention first". Seedlings sprouting and scratching seedlings prevention and control, such as seedlings appear lesions, especially the emergence of acute lesions, should start prevention and treatment; Ye Xi should pay attention to protection of susceptible varieties of rice during the period of childbirth, to grasp the disease in time, when the onset of the disease center At the time, combined with climatic conditions, take appropriate prevention and control measures; Prevention and treatment of panicle blast should pay attention to the protection of the heading period, if the panicle blast occurs generally and quickly rise, especially in the flag leaves with acute type lesions increased or the incidence of leaf axillary ridge, When weather conditions are conducive to disease epidemics, it is necessary to determine the prevention and control of field plots and to prevent and control pesticides. The control agent can be used: tricyclazole, Shi Dao Ling, etc.