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Identification of Symptoms and Control Methods for Powdery Mildew on Licorice
It mainly damages leaves, and can also damage pods. The surface of affected leaves and pods is covered with a layer of white powder, and later many small black spots appear on the lesions, which can cause early defoliation or wilting of the whole plant. Control methods: spray 0.1-0.3 degrees Baume lime sulfur mixture, 50% thiophanate-methyl wettable powder 800 times dilution, 50% amobam 600 times dilution.
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Key points and precautions for building a rooftop rice field eel pond
What should be noted when building a rooftop rice field eel pond? Considering the load-bearing capacity of the rooftop, it is recommended that all rooftop ponds be built with bricks laid upright (wall thickness 6 cm); except for breeding ponds, all should use soil-free culture. From the perspective of cooling, the wall that is often exposed to the sun should be built higher than the height of the culture pond, and then the pond should be started about 10 cm back from it, to prevent prolonged sunlight on that pond wall from causing the water temperature in that pond to rise abnormally compared with other ponds, resulting in an undetected high water temperature that causes the death of rice field eels.
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What are the new techniques for summer rice breeding? Key points explained in one article
Summer rice seedling-raising techniques are very important, as the quality of the seedlings directly affects the growth and yield of rice in the field. 1. Select varieties. New rice varieties suitable for local growth should be selected that show good performance in traits such as strong seedling-stage growth, relatively strong tillering, a relatively short growth period, high yield, good glutinous rice quality, white color, and a strong aroma. In the Haiyang area, the main variety suitable for planting is glutinous rice Yizhixiang. 2. Seedbed selection. Plots should be selected that are flat, fertile, easy to manage, and convenient for irrigation and drainage. The seedling field and summer rice area should be managed at a ratio of
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72% Biprofezin? WP is a veritable killer of rice pests
This product has a strong stomach-poison and contact action, high insecticidal activity, and excellent systemic activity; it can be absorbed and translocated by crops to kill relatively concealed pests. It is highly effective against the main rice pests, planthoppers and stem borers, and also has good control efficacy against thrips, leafhoppers, rice weevils, etc. At the same time, it can also control various pests on vegetables and fruit trees. Method of use: To control rice pests, use 50 g of this product per mu, and at the peak of young nymphs or larvae, dilute with 30 kg to 50 kg of water for conventional spraying, or dilute with 10 kg of water and spray with a mist sprayer. In the middle and late stages of rice growth
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Key Technical Points for No-Till Planting with Rice Straw Return
No-till technology with rice straw return refers to a simple planting method in which, after the rice harvest, the rice straw is spread evenly over the field, no plowing is done, and only chemical weed control is carried out before wheat can be sown. This technology was successfully developed in May 2000 through dedicated experimental research by the Chengdu Second Institute of Agricultural Sciences. The no-till wheat planting technology with rice straw return fully combines the advantages of straw return, no-till, and broadcasting, and scientifically assembles them into a complete new technology package, which has not yet been formally reported at home or abroad. Experimental research shows that this comprehensive supporting technology not only increases
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What are the classification methods for rice bran? A detailed explanation of common types
Rice is one of humanity's main food grains, and it is rarely used to feed livestock. What is used as feed is mainly the by-product of processing rice into milled rice - rice bran - and its nutritional value varies greatly depending on the processing method. Depending on the rice processing method, rice bran can be divided into rice hulls, rice bran and rice mill by-product. Rice hulls are the hulls removed when processing rice into brown rice.
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Northeast "Strange Rice" succeeds in trial planting in Heilongjiang and begins to be promoted to farmers within the province
Sitting on a pile of plump rice sacks with a beaming smile, Jin Yushi, a farmer from Xiangfang District, Harbin, is very gratified by the bumper harvest of the 8 mu of "Northeast Strange Rice" he planted this year. This year, low temperatures and scant sunshine caused reduced yields in some rice-producing areas of Heilongjiang Province. However, some rice growers who applied new technologies and new varieties still steadily achieved high yields. Among them, rice farmers Jin Yushi, Zhang Zibin and others obtained a good harvest by accepting the suggestions and guidance of scientific and technical personnel, introducing "Northeast Strange Rice" and applying biological technologies such as "three agents and two fertilizers",
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Detailed Explanation of the Growth, Development and Functions of Rice Roots
After the seeds are pre-germinated, they sprout and grow roots. At first, only one root grows, called the seminal root (primary root), which develops from the radicle of the seed. The fibrous roots that later grow from the root primordia at the stem nodes are called adventitious roots. The coleoptile node and the incomplete leaf node produce about 5 roots, the first, second and third leaf nodes produce about 10 roots each, and the nodes above the fourth leaf position produce about 10 to 20 roots each. This is because the leaves increase in size in sequence from bottom to top, so the nutrients supplied for root growth increase in sequence, and the number of roots produced also increases. The nodes of the aboveground part generally do not produce roots. The nutrients produced by the leaves are
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A Complete Analysis of the Key Points of High-Yield Cultivation Techniques for Two-Line Rice
Two-line rice has characteristics such as early and rapid growth in the early stage, smooth color transition in the middle stage, a long late-maturing period, tolerance to fertilizer and disease resistance, large panicles with many grains, relatively good grain quality, stable and high yield, and a more obvious yield-increasing advantage over three-line rice. Therefore, in recent years it has been promoted and applied over relatively large areas in various places. In practice, we earnestly implemented the "six improvements" measures for high-yield cultivation, gave play to the high-yield advantages of two-line rice, and achieved gratifying results. 1. Improve seedling-raising techniques and cultivate strong seedlings. According to the characteristic that two-line rice has little flexibility in seedling age, carry out classified seedling raising. For
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MY4G-100 Rice and Wheat Miniature Windrower Product Introduction
The MY4G-100 rice and wheat miniature windrower, produced by Yancheng Mingyue Machinery Factory in Yancheng, Jiangsu Province, China, features a simple and rational structure, convenient operation and maintenance, small size, light weight, low energy consumption, stable performance, good reliability, and strong adaptability. It is especially suitable for harvesting wheat, rice, soybeans, and reeds in small plots, mountainous areas, hilly areas, and areas where straw utilization is needed. The machine harvests about 2.5-4 mu per hour, with a cutting width of 0.8-1.2 m and a fuel consumption of about 0.8-1 liter.
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