Post-disaster vegetable field management measures

Since May, the province has faced persistent heavy rainfall, which has led to an increase in precipitation of 4 to 5 percent compared to the same period in previous years. This has adversely impacted vegetable growth, causing significant issues such as stunted development, severe pest infestations, and a notable rise in melon diseases. The phenomenon of vines dying off has been particularly severe, resulting in a sharp decline in production. Since early June, widespread and prolonged heavy rains have flooded certain areas, causing extensive damage to field crops and leading to crop losses. In response, vegetable farmers have had to prepare their land for replanting. The recommended approach is to focus on fast-growing leafy vegetables across the province. These types of vegetables typically have a shorter growing cycle of around one month, allowing for timely harvesting and marketing. Longer-growing vegetables may take 2 to 3 months and can be harvested from late July through August, making way for melon, bean, and eggplant plantings. In suburban areas close to the city, fast-growing leafy vegetables are favored due to their ease of transport. Higher altitude regions are better suited for anti-season solanaceous and melon/bean vegetables. Given these climatic challenges, farmers must implement appropriate disaster recovery and replanting strategies to minimize losses and ensure early market availability. First, remove diseased plants, dead residues, and infected leaves promptly to prevent further spread of disease. Lime should be applied around affected areas for disinfection. Second, ensure proper field drainage by clearing irrigation channels and removing excess water. Third, apply quick-acting fertilizers and foliar sprays as needed, focusing organic nutrients near the roots of vegetables. Fourth, raise the soil level slightly to reduce moisture content. Fifth, intensify pest control efforts. Leafy vegetables often suffer from soft rot and anthracnose, while melons face issues like wilting and downy mildew, and eggplants are prone to bacterial wilt. Common insects include Spodoptera litura and yellow-striped moths. For soft rot, treat with 72% agricultural streptomycin at 3000 times dilution, or 77% can kill WP at 500-800 times dilution, or vegetable Fengning at 500 times dilution, or 70% dexamethasone WP at 500-1000 times dilution. Alternate treatments every 7-10 days for 2-3 cycles. For anthracnose, start with 1000 times dilution of net spot, followed by 40% Dakconing at 500-700 times, 500 times of anthraquinone, and 600-800 times of 75% thiophanate-methyl WP. Use 50% chlorothalonil WP at 800 times, spraying every 5-7 days for 2-3 rounds. For fusarium wilt, apply 40% Guavacin, 37% withered Rickett, or 60% Dickson at 600 times dilution. Downy mildew can be managed with 600-800 times dilution of chlorothalonil or 58% thiram Mn-Zn wettable powder at 500-800 times dilution. Bacterial wilt requires 72% agricultural streptomycin sulfate at 400 times, 77% can kill wettable powder at 600-800 times, or 30% copper oxychloride at 600-800 times, or 14% glue ammonia copper water agent at 300-400 times. Spodoptera litura can be controlled using Suppository EC or ECDC at 2000-2500 times dilution, Insect One at 800-1000 times, or 50% insect-resistant 922 EC at 600-800 times. Yellow-striped moth larvae respond well to 1000 times dilution of net of a jumped cream, 98% Bataan original powder at 1000 times, 40.7% Lactose at 1500 times, Sperling at 1000 times, Bacteria at 1000 times, and 90% Trichlorfon at 800 times. Alternating between 18% insecticidal double water at 300-400 times and 80% dichlorvos EC at 1200 times yields optimal results.

Lithium Hydroxide CAS No.1310-65-2

Lithium Hydroxide Basic Information
CAS: 1310-65-2
MF: LiOH
MW: 23.95
EINECS: 215-183-4
Mol File: 1310-65-2.mol

Lithium Hydroxide Structure

Lithium hydroxide

Lithium Hydroxide Chemical Properties
Melting point 462 °C
Boiling point 925°C
density 1.43
storage temp. Store at R.T.
solubility water: soluble71g/L at 20°C
form Solid
Specific Gravity 2.54
color White to light yellow

Stability: Stable. Incompatible with moisture. strong acids, carbon dioxide.

Uses of Lithium Hydroxide
Used in the production of lithium salts and lithium-based greases, electrolytes for alkaline batteries, lithium bromide refrigerator absorption fluids, etc.

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