Calcium-deficient tomatoes usually have short stigma, and the water-stained light yellow-brown to dark green-brown lesions appear in the umbilicus of the fruit. The surface is uneven and the tissue is necrotic (ie, umbilical rot). During the period of fruit enlargement and ripening, if the supply of calcium is insufficient, cracking will occur, resulting in poor coloration and loss of luster. So how should tomatoes be scientifically supplemented with calcium?

Foliar spraying 0.3%-0.5% calcium nitrate aqueous solution, or 0.1%-0.2% calcium chloride aqueous solution, or 400-500 times active calcium aqueous solution, or 600-800 times fluid calcium aqueous solution, generally spraying once every 7-10 days, Continuous spraying 2-3 times, which has a good calcium supplement effect. The best time for calcium supplementation is during tomato fruit enlargement and maturity.

In addition, the use of superphosphate or calcium magnesium phosphate as the base fertilizer, 80-100 kg per acre, can significantly increase the calcium content of the soil, adding the manure and manure of human and poultry manure and biological fertilizer, can make the soil The active calcium content is obviously improved, which is beneficial to the absorption and utilization of tomato roots and avoids calcium deficiency during tomato growth and development. If the tomato is grown in acid soil, when planting tomato in the whole land, apply 50-60 kg of slaked lime powder per acre to neutralize the acidity of the soil, increase the calcium content of the soil, and ensure that there is sufficient calcium to supply the growth and development of the tomato. need.

Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone

Cosmetics Raw Material

Green and functional cosmetics are more and more favored by people. As plant extracts are more and more widely used in cosmetics, more and more varieties are used. Compared with traditional cosmetics, cosmetics prepared with plant extracts as active ingredients have many advantages, such as overcoming the shortcoming of traditional cosmetics relying on chemical composite products, and making the safety of products higher; Natural components are more easily absorbed by the skin, making the effect of the product more significant; Functional more prominent, etc. Therefore, the application of plant extracts in cosmetics is the inevitable trend of market development. In addition, plant extracts have many obvious advantages, such as wide source and targeted mechanism of action. Especially with the progress of modern extraction technology and analysis technology, its effective ingredients and related mechanisms of action have been gradually discovered and confirmed by people, in the sunscreen, whitening, anti-aging, sterilization and other aspects of significant efficacy, can be widely used in various cosmetics. Therefore, the application prospect of plant extracts in cosmetics is very broad.

Cosmetics Raw Material,Lophatherum Gracile Extract,Natural Rhodiola Crenulata Extract,Lower Price Sedum Rosea Extract

Fufeng Sinuote Biotechnology Co.,Ltd. , https://www.sntbiology.com