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Control Methods for the Small Brown Planthopper at the Rice Heading Stage
The small brown planthopper (Laodelphax striatellus) not only transmits viruses that cause rice viral diseases such as rice stripe virus disease, but also congregates on the panicles to cause damage during the heading stage of late rice. To clarify the control efficacy of pymetrozine and other pesticides against the small brown planthopper at the heading stage of late rice and the application techniques, Cheng Qinhai and others from the Plant Protection Station of Haining City, Zhejiang Province, conducted field
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What Are the Methods for Determining Herbicide Damage in Rice
Currently, most people mix pesticides when using them in order to increase their effectiveness. However, if used improperly, this can easily cause herbicide damage. How to determine whether it is herbicide damage through investigation and analysis? The following methods are introduced: 1. From
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The correct method for soaking and germinating hybrid rice seeds
Now is precisely the main spring production season. A small number of farmers, due to improper operation during the soaking and germination process, have encountered problems such as seeds turning sour and smelly and poor sprouting. Therefore, when soaking and germinating seeds, attention should be paid to: 1. Sun-drying the seeds: one week before soaking, choose a sunny day and sun-dry the seeds for 3-4 hours
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Detailed Explanation of Foliar Fertilization Methods for Sweet Potato Cultivation
During its growth, the sweet potato can be divided into three types: weak seedlings, strong seedlings, and vigorous seedlings. Foliar fertilization must be carried out in a targeted manner according to the different growth appearances, in order to promote robust vines and high tuber yields. For weak seedlings in such fields, 0.5-1 kg of urea, 1-1.
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Try These New Methods for Growing Sweet Potato Slips
The traditional technique for growing sweet potato slips is to store sweet potatoes harvested in autumn, plant and cultivate them in spring to grow vines, then cut the vines into sections and root them to produce sweet potato slips. This method is labor-intensive, time-consuming and uses up seed potatoes, and the winter storage technique is hard to master, which affects the following year's
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How to grow sweet potatoes for higher yields? These four methods are very practical
For inverted planting, first cut off the top 2-3 nodes of the sweet potato vine, then cut it into sections of 4 nodes each, remove the petioles and leaves of the upper two nodes of each section, keep the petioles and leaves of the lower two nodes, and plant them upside down on the ridge, so that one petiole base is left exposed above the ridge surface
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What methods are there to suppress excessive vine growth in sweet potato vines and leaves?
Sweet potato is also called sweet potato, because it grows in the ground, hence the name sweet potato. Sweet potato is fairly common in our lives, and we also eat it often. Especially the roasted sweet potato stalls often seen by the roadside, whose fragrance can be smelled from far away
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How to prevent sweet potato storage diseases? These methods are very practical
Safe storage of fresh-eating sweet potatoes over winter and off-season sales bring potato farmers relatively high economic benefits. In the sweet potato-producing areas on the outskirts of Beijing, storing sweet potatoes has become fashionable. Fresh potatoes are large in volume, high in water content, tender in tissue, and thin-skinned, easily damaged, susceptible to chilling injury and disease infection, which leads to rot
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How to Prevent and Control Sweet Potato Stem Nematode Disease? Detailed Technical Methods
Sweet potato stem nematode disease is a devastating disease in sweet potato production. It is highly destructive and spreads quickly. It can infect and cause damage during the seedbed stage, field stage, and storage stage, but it mainly infects the tubers. Affected sweet potatoes have brown, bluish skin with cracked patterns, and the tubers are light. Some tubers show no external abnormalities, but are hollow and pithy inside. This disease not only affects the quality of sweet potatoes, but also severely affects sweet potato yield.
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Prevention Methods for Sweet Potato Cellar Rot and Storage Management Techniques
The biggest problem during sweet potato storage is cellar rot. Once cellar rot occurs, it may at best reduce the quality of the sweet potatoes, and at worst cause all the sweet potatoes in the cellar to rot, resulting in varying degrees of loss. Sweet potato cellar rot is mostly caused by physiological diseases and infectious diseases. Physiological diseases mainly
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