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What are the pollution-free control methods for rice stem borers?
How are rice stem borers controlled in a pollution-free way? Please explain the control methods. Stem borers are the common name for the rice striped stem borer and the rice yellow stem borer. The rice striped stem borer is distributed throughout the country. Besides damaging rice, the rice striped stem borer also damages wild rice stem, corn, sugarcane, reeds and other grass weeds. After overwintering, some larvae can invade broad...
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What are some practical methods to increase rice yield?
What methods can increase rice yield? Is there any effective method? To increase rice yield, you can refer to the following methods for management: 1. Increase the number of panicles. ① Cultivate strong seedlings. This provides a good foundation for early greening and early tillering after transplanting. ② Reasonable close planting. According to the planned number of panicles to be harvested and an estimate of the tillering situation of the seedlings after transplanting...
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Causes of Open Rice Glumes Without Grain Filling and Control Methods
What should be done when rice glumes open without grain filling? What solutions are available? Please advise. The phenomenon of rice glumes opening without grain filling after heading occurs in many places, mainly on hybrid indica rice; it basically does not occur on japonica rice. Since this phenomenon occurs in different years, and occurs in fields both with and without pesticide application...
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Cherry Radish Summer Planting Methods and Key Technical Points
How do you plant cherry radishes in summer? Please provide guidance. Summer's high temperatures and heavy rain make cherry radishes prone to uneven emergence and severe pests and diseases, so cultivation measures should be adjusted appropriately. The planting method can refer to the following: 1. Land preparation and fertilization. Cherry radishes are highly adaptable to soil, but...
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What are the methods for controlling pests and diseases in summer corn at the seedling stage
Which pests and diseases need to be controlled in summer corn at the seedling stage? Please introduce the control methods. The following pests and diseases need to be controlled in summer corn at the seedling stage: 1. Seedling-stage pest control. The main pests at the corn seedling stage are: armyworm, cotton bollworm, small brown planthopper, thrips, Swedish fly, etc. To control armyworm and cotton bollworm, 5% beta-cypermethrin or 2.5% cyhalothrin 50-75 g/mu can be used, sprayed with 30 kg of water. For the control of Swedish fly, when corn has just emerged (i.e. one leaf and one heart), spray 15% beta-cypermethrin·chlorpyrifos emulsifiable concentrate 50 mL per mu. If damaged plants appear in the field, those with severe damage should be pulled out promptly, and for lightly damaged ring-shaped plants, the tip of the plant should be cut off. To control the grain mealybug, use 50% phoxim emulsifiable concentrate 500-1000 mL/mu or 48% Lesiben emulsifiable concentrate 200-400 mL/mu for root drenching.
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How is the sowing time for summer corn determined? Mastering these methods is enough
How is the sowing time for summer corn determined? Please give guidance. Because the period available for corn growth in summer corn regions is limited, in order to obtain enough heat, allow the corn to fully mature, harvest it in time, obtain a relatively high yield, and not delay the normal sowing of the following wheat crop, the sowing time for summer-sown corn should be as early as possible. That is, winter wheat...
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Symptom Identification and Control Methods of Lotus Root Black Spot Disease
What is lotus root black spot disease? How to control it? Please explain: in the early stage of lotus root black spot disease, needle-tip-sized yellowish-brown small spots appear; in the later stage, the entire leaf is covered with lesions that have concentric rings, causing half or the whole leaf to dry up. Control: increase the application of phosphorus and potassium fertilizers, and avoid over-applying nitrogen fertilizer. In winter, thoroughly remove diseased and residual leaves from the field and burn them in a centralized manner; in the early stage of the disease, remove...
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What are the control methods for gray mold in Welsh onion?
How do you control gray mold in Welsh onion? Please give an introduction. Gray mold in Welsh onion, also known as white spot disease, is a major disease of Welsh onion. It mainly damages the leaves. In the early stage, white oval or nearly round spots appear on the leaves, mostly spreading downward from the leaf tip, gradually joining together into patches, causing the leaf tip to curl and die. When humidity is high, a large...
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What are the control methods for the meadow moth on summer soybeans?
How to control the meadow moth on summer soybeans? Please allow me to explain. The meadow moth on soybeans has risen from a secondary key pest of summer soybeans in the past to a primary key pest. Newly hatched larvae feed on the mesophyll of tender young leaves, leaving the epidermis; after the 3rd instar their food consumption increases greatly, and they eat the leaves into notches with only the veins remaining. In ordinary years yield is reduced by 10%-15%, in severe years...
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Detailed Explanation of Summer Soybean Planting Methods and Technical Key Points
How are summer soybeans planted? Please provide an introduction to the methods. For summer soybean planting, you can refer to the following methods: 1. Pre-sowing irrigation: For plots with poor soil moisture, where irrigation conditions are available, irrigate once before sowing to facilitate seed germination after sowing. Combine irrigation with field closed weeding. 2. Carefully select seeds: Choose seeds with good...
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