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Technical Guidance on Chemical Weed Control in Paddy Fields
Chemical weed control in paddy fields is a key step in achieving high and stable rice yields. There are three main types of weeds in the rice fields of our county: grassy weeds such as barnyardgrass, sprangletop, and crabgrass; broadleaf weeds such as monochoria, pondweed, and Rotala indica; and sedge family weeds. In recent years, because rice planting methods in our county have become diverse, the weed spectrum in paddy fields has undergone considerable change: first, some malignant weeds in paddy fields are on the rise. In addition to barnyardgrass, which remains widespread and abundant, sprangletop and Cyperus serotinus have shown a clear upward trend;
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Does applying chlorsulfuron to wheat fields affect cotton?
Chlorsulfuron is a sulfonylurea herbicide with high herbicidal activity, mainly used in wheat and flax fields to control annual monocotyledonous and dicotyledonous weeds. In China, it is currently restricted to use only in wheat fields in the wheat-rice rotation areas of the Yangtze River basin. It is not easily decomposed in soil, and its residual effect lasts up to 6 months. Crops such as cotton, peanut, soybean and vegetables are sensitive to this herbicide. When chlorsulfuron is applied to wheat fields and sensitive crops such as cotton are planted in the following crop, phytotoxicity of varying degrees will occur. In wheat fields where chlorsulfuron has been applied, it is best not to transplant cotton; other crops with strong tolerance can be planted instead.
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How to control broadleaf weeds in potato fields?
(1) Crop rotation: Rotation reduces the density of associated weeds, changes the dominant weed community in the field, and lowers the weed population in the field. (2) Plowing and turning: After the soil is plowed and turned multiple times, perennial weeds such as Ixeris denticulata are buried underground, causing the weeds to gradually decrease or decline in vigor, thereby inhibiting their growth and achieving the purpose of weed control. (3) Inter-row cultivation and hilling: This measure not only controls weeds but also has effects such as deep loosening and water storage and moisture conservation. For example, for open-field potatoes, inter-row cultivation is generally carried out the first time when the seedlings are about 10 cm tall,
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Key Techniques for Overwintering Management of Panax notoginseng Seedling Fields
Panax notoginseng is a perennial herbaceous plant. Once winter arrives, its above-ground parts all die back. At this time, the above-ground parts should be cut off 3 cm above the ground, and all dead branches, fallen leaves, diseased plants and weeds in the field should be cleared away and burned outside the field. The soil should be thoroughly sprayed and disinfected with 0.2-0.3 degrees Baume lime-sulfur mixture, and then a layer of decomposed farmyard manure should be applied at about 1500 kg per mu to keep warm and prevent freezing. If exposed roots are found, soil should be banked up when the winter fertilizer is applied, and finally a layer of grass should be spread on top to ensure the buds overwinter safely.
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Effective weed control methods in Schisandra chinensis fields
1. The results of a survey of weed species in Schisandra chinensis fields showed that the weeds causing more serious damage in Schisandra chinensis fields include barnyardgrass, crabgrass, amaranth, lamb's quarters, field horsetail, green foxtail, and shortawn foxtail, among which crabgrass, Asiatic dayflower, and lamb's quarters are especially serious. 2. Conventional weed control in Schisandra chinensis orchards Conventional weed control in Schisandra chinensis orchards can be carried out together with intertillage of the orchard, 4 to 5 times per year, with a cultivation depth of about 10 cm, so that the soil is loose and has good aeration, and it also plays a role in drought resistance and water conservation. Weeding is an important means of avoiding nutrient loss and ensuring the plants have enough nutrition to grow healthily.
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Detailed Explanation of Button Mushroom Cultivation Techniques in Rice Fields (Part 5)
V. Integrated Pest and Disease Control. Integrated pest and disease control should adhere to the principle of prevention first, with prevention being more important than treatment, and to the principle of combining agricultural control, physical control, biological and ecological control, and chemical control. The use of highly toxic and high-residue pesticides must be eliminated, and no pesticides should be used during the mushroom harvesting period. Diseases and deformed mushrooms caused by environmental factors or improper technical management (such as red-foot mushrooms, landmine mushrooms, big-ball mushrooms, scaly mushrooms, etc.), as well as weed fungi (such as Coprinus mushrooms, etc.), should be controlled primarily through integrated measures. Main measures: First, the compost formula must be accurate, and the material
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Growing potatoes in idle winter fields yields good returns
1. Choose good field plots and sow at the right time. Choose double-cropping rice areas below 100 m altitude, with little or no frost in winter and an average annual temperature above 19°C, requiring paddy fields with deep topsoil, loose texture, medium-to-upper fertility, and convenient drainage and irrigation; at the same time, arrange the sowing period reasonably. After the double late rice is harvested in mid-November, immediately plow deep and sun-bleach the soil, sow in early to mid-December, and harvest from late March to early April the following year. 2. Prepare the land finely and make deep furrows and high ridges. Potatoes grown in paddy fields in winter are most afraid of waterlogging, so fine land preparation should be advocated, with deep plowing and high-ridge cultivation, and planting
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Detailed Explanation of Agaricus bisporus Cultivation Technology in Rice Fields
Cultivating Agaricus bisporus in rice fields is a "rice-mushroom-rice" cropping model in which, after the rice harvest, compost is spread directly on the rice field for spawning and casing soil cultivation to produce mushrooms. After the rice is harvested, the rice straw is dried on site, composted and fermented on site to make the growing substrate, and cultivated on site, with management provided by grass curtains, small plastic tunnel shelters, or plastic greenhouses, eliminating the need to build mushroom houses and transport raw materials, thus greatly reducing production costs. In addition, rotating the cultivated field each year can effectively control pests and diseases, enabling the mushroom products to meet pollution-free quality requirements. In addition
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High-Yield Cultivation Techniques for Agaricus bisporus in Rice Fields
Cultivating Agaricus bisporus in rice fields is a planting method that uses rice straw and other materials as the main raw materials, which are composted and fermented into growing substrate, and takes advantage of the temperature and light resources and idle seasons of autumn, winter and spring to cultivate Agaricus bisporus in the open field in rice fields after the rice harvest. This method makes full use of resources, can create a net profit of more than 5000 yuan per mu, with an input-output ratio of 1:3, and can improve the soil, delivering excellent economic and ecological benefits. The technical experience is introduced below: 1. Mushroom field selection Generally, a middle-season rice field or single-crop rice field with higher terrain, fertile soil, convenient drainage and irrigation, close to a water source,
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High-yield cultivation techniques and conditions for Agaricus bisporus in paddy fields
Among cultivated edible mushrooms, the button mushroom has the largest cultivation area and the highest yield. The button mushroom is a general term for several edible fungi of the genus Agaricus. Currently, two species are mainly used in production: Agaricus bisporus and Agaricus bitorquis, with Agaricus bisporus having the largest cultivation area. Agaricus bisporus (also known as white mushroom, button mushroom, or cultivated mushroom) has three strains: brown, cream, and white, among which the white Agaricus bisporus has better economic value. In terms of cultivation methods, it is divided into mushroom house cultivation, greenhouse cultivation, and open-field paddy cultivation (also known as "field mushroom"). Growers can choose according to their
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