As customers have higher and higher requirements for animal reproduction and animal disease diagnosis and treatment, traditional diagnostic methods such as visual inspection, stethoscope listening, thermometer inspection, and percussion and hammering can no longer meet the needs of animal husbandry production and veterinary clinics. Today, B-ultrasound is playing a big role in human medical diagnosis, and in the future, B-ultrasound will also play a role in animal medicine. We should promote the use of veterinary ultrasound scanner step by step according to the actual situation, popularize the knowledge of the use of veterinary ultrasound scanner, take this as an opportunity, and use it as a ladder to improve the level of veterinary practice in our country. Veterinary Ultrasound Scanner,Vet Ultrasound Scanner,Veterinary Ultrasound Machine,Veterinary Ultrasound Equipment Mianyang United Ultrasound Electronics Co., Ltd , https://www.uniultrasonic.com
Do a good job in peanut management
In terms of peanut production, poor management during the mid to late growth stages can significantly reduce yields, which is a major constraint on expanding the area under cultivation. Proper care and timely interventions are essential to ensure healthy growth and high productivity.
First, it's important to apply top-dressing fertilizers from the early flowering stage until full bloom. A lack of nutrients can lead to fewer flowers, which in turn affects the ability of pegs to penetrate the soil. Different conditions require tailored nutrient applications to optimize yield.
1. For fields with insufficient base fertilizer or weak seedlings, applying 7.5 to 10 kg of urea per mu, along with 10 to 15 kg of calcium superphosphate, or 15 to 20 kg of NPK compound fertilizer can help boost flower production and support higher yields.
2. In nitrogen-deficient areas, leaves may appear pale with yellow veins. Urea should be applied at 5 to 7.5 kg per mu. If phosphorus is lacking, plants will grow stunted with blue-green, curled leaves. Diammonium phosphate at 7.5 to 10 kg per mu, combined with foliar spray of 0.2% potassium dihydrogen phosphate (50 kg per acre), can help. For potassium deficiency, dark green, dry leaf edges indicate need for 10 to 15 kg of potassium sulfate or 50 to 100 kg of wood ash. Calcium deficiency leads to slow growth and high empty shell rates; applying 40 to 50 kg of lime can improve both yield and quality.
3. Timely soil cultivation is crucial. Early weeding helps prevent competition from weeds while protecting fruiting branches. Delayed cultivation may prolong the time for pegs to enter the soil, increasing the risk of pod rot. The best time for cultivation is when some pegs have already entered the soil but most have not. Care must be taken to avoid damaging roots or compacting the soil.
Second, proper irrigation and drainage are essential. As the saying goes, "Dry is not a needle, wet is not a drum." During the mid to late growth stages, the soil should be kept moist but not waterlogged. Excessive moisture can lead to root and pod rot, reducing yield by up to 30%. Ensuring good drainage is key to preventing waterlogging and maintaining healthy plant development.
Third, foliar sprays and aging prevention play a critical role. Trace elements like iron, molybdenum, boron, and calcium are vital for peanut growth. Iron deficiency, common in alkaline soils, causes yellowing of leaves. Applying 0.4% ferrous sulfate during the flowering and pod-filling periods can quickly restore leaf color and increase yield by over 10%. Zinc supplementation also improves plant vigor. Spraying a mix of 1% urea and 0.5% potassium dihydrogen phosphate 30 to 50 days before harvest can enhance photosynthesis and promote better pod filling.
Fourth, pest and disease control is necessary. To manage underground pests like earthworms, mix 200 ml of 48% lespedeza EC with water and combine with 1 kg of fine sand, or use 5% phoxim granules mixed with 1.5 to 2.5 kg of dry soil and bury near the pegs. For pests such as Helicoverpa armigera, spraying Bacillus thuringiensis before the third instar stage, or using 3.2–4.0 g of avermectin per mu with 60–75 kg of water, can effectively control infestations.
For leaf spot diseases, spraying 150 g of 75% chlorothalonil per mu can help. Jinggangmycin or sulfur rubber suspension can also be used for effective treatment.
Finally, timely harvesting is essential. When the upper leaves turn yellow, most middle leaves have fallen, and the pod shells show clear reticulation, it’s a sign that peanuts are mature. Harvesting should occur when the pods are fully developed, with a full fruit rate of around 85%. Delaying or rushing the harvest can negatively impact both quality and yield.