Identification of phytotoxicity in rice
Spots are common brown spots, yellow spots, spots, net spots. For example, when butachlor is sprayed in the early stage of rice growth, irregular brown spots appear in the rice seedlings. Malformation caused by malformation injury often occurs in the leaves and roots of rice. The common malformations include leaf rolling, clumping, rooting, and abnormal spikes. If the rice is damaged by 2,4-D, the heart is stiff. And there are tubular leaves and abnormal spikes appear. Withered wilting damage is often the whole plant performance symptoms, mostly caused by herbicides, such as rice seedlings misuse of Gaisha can, the whole plant will wither and die. After growth retardation of rice was phytotoxic, normal growth was inhibited and slow growth occurred. For example, after the rice was transplanted, improper application of butachlor resulted in signs of slow growth, in addition to brown spots.
Poly aluminium chloride (PAC) is a new type high efficiency inorganic polymer coagulant, adopting advanced manufacturing technique and quality raw material, show the features of low impurity, high molecula weight, and superior coagulating effect.
I. Poly Aluminium Chloride Properties
Product Name:
Polyaluminium Chloride (Poly Aluminum Chloirde, Polyaluminum Chloride, Poly Aluminium Chloirde, Aluminum Polychride, PAC )
CAS#:
1327-41-9
Appearance:
White and yellow powder
Description:
Poly aluminium chloride (PAC) is a new type high efficiency inorganic polymer coagulant, adopting advanced manufacturing technique and quality raw material, show the features of low impurity, high molecula weight, and superior coagulating effect.
Different grades of Polyaluminum Chlorides (PAC). The highly charged Al in the products is optimized for best performance for the different basicities of PAC. The low to medium basicity products are effective coagulants for treatment of both drinking water and waste water. And the medium to high basicity products are excellent for all ranges of wastewater treatment.
III. Poly Aluminium Chloride Application:
1. Its purifying effect on low-temperature, low-turbidity and heavily organic-polluted raw water is much better than other organic flocculant, furthermore, the treatment cost is lowered by 20%-80%.
2. It can lead to quick formation of flocculant (especially at low temperature) with big size and rapid precipitation service life of cellular filter of sedimentation basin.
3. It can adapt to a wide range of pH value (5−9), and can reduce the pH value and basicity after processing.
4. The dosage is smaller than that of other flocculants. It has wide adaptability to the waters at different temperatures and at different regions.
5. Higher basicity, lower corrosive, easy for operation, and long-term use of non-occlusion.
Poly Aluminium Chloride Poly Aluminium Chloride,PAC 30% Poly Aluminum Chloride,28% Oly Aluminium Chloride,Yellow Poly Aluminium Chloride Shandong Tiancheng Chemical Co., Ltd. , https://www.akdchemical.nl
1. Its dosage lower than aluminum sulfate (based on Al2O3) and water treatment cost is lower than other inorganic flocculants.
2. The product can cause quick formation of flocs, big flocs formation and rapid precipitation. Its treatment capacity is 1.3-3.0 times of other inorganic flocculants.
3. It enjoys wide-range adaptability for different-temperature source water and a good solubility.
4. It is slightly corrosive and easy for operation.
5. The liquid product is suitable for automatic dosing. Furthermore, it will not block pipes over long-time usage.
II. Description
