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Main cultivation technical points for purple sweet potato planting
1. Land selection: Most purple sweet potatoes belong to mid-to-late maturing varieties, with tuber rapid expansion and yield formation occurring relatively late. The plot to be planted not only requires relatively high soil fertility, but the soil texture should be light loam or sandy loam, and the land levelness and drainage and irrigation conditions should be good. Purple sweet potato has
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Key Technical Points for Off-Season Cultivation of Sweet Potato
In order to improve the economic benefits of growing sweet potatoes, in addition to post-harvest deep processing, sweet potatoes can also be brought to market earlier through off-season cultivation. Two off-season cultivation techniques are introduced here. 1. Cultivation technique for sweet potatoes marketed in May-June: Use the method of storing water between ridges inside a greenhouse plus a small arch shed to improve the heat preservation effect. Planting can be done from December to January of the following year. Using virus-free shoot-tip seedlings cultivated in a small arch shed, the yield for market in May is 1300 kg per 667 sq m. The income is much higher than that of conventional planting.
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Key Technical Points for Field Management of Rice During the Green-Returning and Tillering Stage
The green-returning and tillering stage of rice refers to the period from transplanting to the time before jointing and booting. This period is important for determining the number of panicles and laying the foundation for panicle and grain development. The main goal of field management is to promote good root development, rapid green-returning, and early tillering, and to form sufficiently strong
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How to prevent and control rice purple sheath disease? Practical methods and key technical points
Symptoms After rice heading, dense pinhead-sized purple dots appear on the leaf sheath of the flag leaf, then gradually spread to most of the leaf sheath or the entire leaf sheath turns purplish-brown, especially obvious on the outer wall of the leaf sheath, sometimes infecting the inner wall or reaching deep into the stem. In severe cases, the flag leaf dies 7-10 days early.
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Control Methods and Technical Key Points for Rice Bakanae Disease
Symptoms: After rice is infected with bakanae disease, the internodes of the affected plants elongate, growing thin and tall, the plant color is paler, the leaves are narrower than those of normal plants, there are varying numbers of adventitious roots inside or outside the leaf sheaths at the nodes, and white mold grows inside the rice stalks, later turning light red, sometimes
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Peanut Seed Storage Methods and Key Technical Points
First, before storage, the seeds must be thoroughly sun-dried so that the seed moisture content drops below 8%. According to experiments, when the seed moisture content is below 8%, storage is very safe, and even at -25°C, germination capacity is not affected. When the seed moisture content is above 10%, respiration increases, releasing
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Key Technical Points for Pest and Disease Control During the Autumn Sowing Period of Wheat
The autumn sowing period is the foundation and key to doing a good job of wheat pest and disease control. We hope farmers will seize this favorable opportunity of autumn sowing, adopt effective measures, and carry out pest and disease control work well for soil-dwelling pests, wheat powdery mildew, and other problems, striving to eliminate wheat pests, diseases, and weeds in the bud stage.
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Key Technical Points for Current and Late-Stage Wheat Management
In some wheat fields in our province, due to earlier drought, the secondary roots are few and short, the population is insufficient, and drought conditions still persist in some plots. In response to this situation, at the provincial spring agricultural production work conference held on April 7, Yu Zhenwen, academician of the Chinese Academy of Engineering, head of the Wheat Expert Guidance Group of the Ministry of Agriculture, and professor at Shandong Agricultural University
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Key Technical Points for Pest and Disease Control During the Wheat Sowing Period
Grasping pest and disease control from the autumn sowing period to the seedling stage of wheat is an important technical component for ensuring full and strong seedlings. The sowing and seedling stages of wheat are also critical periods for the control of many pests, diseases, and weeds. If control is not timely, it often results in missing seedlings and broken rows, or weak and diseased seedlings. In response to the pest
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Methods and Technical Points for Cultivating Strong Wheat Seedlings Before Winter
Only by cultivating strong seedlings before winter can you ensure large ears, many grains, heavy grains, and a high-yield harvest for the next year's wheat. The standard for strong wheat seedlings before winter is: before winter, the main stem grows 7-8 leaves, each plant has 7-8 tillers, and 8-9 secondary roots; for ordinary wheat fields, the number of stems per mu should be
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