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Three methods to increase soybean yield, simple and practical
Thinning: After soybean seedlings emerge, thinning early on the basis of a full stand is a proven yield-increasing measure. Its effect depends mainly on how early thinning is done; generally it should be carried out promptly when the two opposite unifoliate leaves have unfolded. Seedling pressing: When the first compound leaf of the soybean seedling has unfolded, choose a sunny noon and press the seedlings along the rows with a wooden roller drawn by animal power or machinery. When pressing, be careful to avoid cloudy days or sunny mornings, so as not to break the seedlings. Pinching: At the early flowering or full flowering stage of soybean, remove about 2 cm from the top of the main stem by hand.
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Nano magnetic energy liquid can be used to increase soybean yield and promote early maturity
This spring, due to large temperature fluctuations, the effect of pre-emergence closed weeding in soybeans was poor, fields were overgrown with weeds and seedlings were small, the area affected by herbicide damage was large, soybean growth was hindered, root development was poor, stunted seedlings in the field were severe, and the growth process was delayed by an average of 7-10 days. 1. Main manifestations 1. New leaves grow slowly, the lower leaves turn yellow and withered, the root system shows rusty roots and reddening, and at this stage root rot also occurred over a large area; 2. Field plots with normal growth accounted for only about 20% of the total area; 3. Individual plants had fewer branches, reduced by more than 20-30%.
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10 Key Measures to Increase Soybean Yield
1. Thinning: On the basis of full stands of soybeans, thin the seedlings when the two opposite simple leaves unfold, generally increasing yield by 10-20%. 2. Pressing seedlings: When the first compound leaf of some soybean seedlings unfolds, choose a sunny midday and use animal power or a machine-drawn wooden roller to press along the ridges, which can increase yield by 8.5-10%. 3. Pinching: At the early flowering or full flowering stage of soybeans, remove about 2 cm from the top of the main stem by hand, which can increase yield by 7.2%-10.8%. 4. Applying rare earth: Mix 2 kg of rare earth per 1 kg of soybean seed for seed dressing, or spray once each with rare earth solutions at concentrations of 0.03-0.04% and 0.08 during the soybean seedling stage and early flowering stage, which can increase yield by 15-20%.
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A Detailed Guide to Controlling the 3 Major Diseases of Carnations
Leaf spot, Fusarium wilt and viral diseases are the main diseases that occur on carnations. The control methods are as follows: Leaf spot mainly infects the leaves, and the disease usually starts on the lower leaves. On severely affected plants the diseased parts are distorted, and the diseased leaves wither, droop and hang down over the stem, but do not fall off. Old leaves are affected more often and more severely, while new leaves are affected less, and the disease occurs more in open-field cultivation than in greenhouses. Control methods: start spraying regularly from the early stage of the disease; spray a fungicide immediately after disbudding and cutting flowers for protection. A 75% chlorothalonil wettable powder solution diluted 800 to 1000 times can be used for spraying
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What to Do When Carnations Get a Viral Disease? Detailed Control Measures
A. Strict quarantine should be carried out when importing carnation seedlings to avoid the spread of virus-carrying plants. B. Large-scale production bases should use shoot-tip virus-free seedlings to establish virus-free mother plant gardens for cutting propagation. C. Remove infected plants as much as possible to reduce sources of infection. During cultivation and management, care should be taken to disinfect and clean tools used for taking cuttings, cutting flowers and pruning, to avoid contact transmission. D. Pay attention to controlling the transmission vector, aphids. Spray 50% menazon wettable powder at 1500 times dilution or 2.5% deltamethrin emulsifiable concentrate at 5000 times dilution to kill aphids. E. Heat treatment
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Symptoms and Control Methods of Carnation Vein Mottle Disease
[Pathogen] Carnation vein mottle virus (CaVMV). Thermal inactivation point 60-65°C. [Symptoms] Affected plants show numerous chlorotic spots and mottling on the leaves, presenting systemic mosaic symptoms; dark green spots are especially visible on the veins of young leaves, and symptoms are often masked on old leaves in winter. Affected flowers develop color breaking and are sometimes distorted and deformed.
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Symptom Identification and Control Methods of Carnation Viral Diseases
Carnation viral disease is a worldwide disease, occurring in all cultivation regions. The common viral diseases are vein mottle disease, necrotic spot disease, etched ring disease, and latent disease. Viruses often cause carnations to grow weakly, with short flower stems, smaller flowers, mottled petals, and split calyces, severely affecting the quality and yield of cut flowers. (1) Carnation necrotic spot disease: the middle leaves of infected plants turn grayish-white, showing pale yellow necrotic mottling, or irregularly shaped streaks or stripes. The lower leaves often show purplish-red streaks or stripes. As the plant
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Symptom Identification and Control Methods of Carnation Necrotic Fleck Disease
[Pathogen] Carnation necrotic fleck virus (Carnationnecroticfiackvirus, CaNFU), thermal death point 40-45°C, in vitro survival period 2-4 days at 20°C. [Symptoms] Grayish-white, pale yellow, or purplish-red necrotic spots or streaks appear on the leaves, and the streaks are often parallel to the leaf veins. Older leaves are more severely affected, and the disease spreads upward. In severe cases, the entire leaf turns yellow and necrotic.
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What kind of disease is carnation Fusarium wilt
Carnation Fusarium wilt occurs in all carnation-growing areas and causes widespread damage. [Pathogen]Fusarium oxysporum f. sp. dianthi (Prill. et Del.) Snyd. et Hans, a fungus belonging to the Deuteromycotina and the genus Fusarium. [Symptoms]The disease mainly invades through the roots of carnations and colonizes the vascular system. Affected plants show chlorosis, yellowing, browning and wilting of the lower leaves or stem internodes, initially usually only on one side of the plant;
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What are the two main diseases of carnations?
Carnations are most susceptible to leaf spot and stem wilt, and calyx rot. The fungal spores of leaf spot and stem wilt persist in carnation plants and in decayed, rotting plants, and spread through the air. When water remains on the plant surface for 8-10 consecutive hours, the pathogen can penetrate through the moisture. The symptoms of leaf spot and stem wilt are: grayish-brown leaves or spots with purple edges appearing on the petals. The spots are formed by clusters of black spores, and the stems begin to yellow and wither from the internodes, then develop into a wilt that encircles the stem completely. The pathogen of calyx rot persists in the old leaves, lower stems and branches, or decayed and rotting plants of carnations. High
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