Citrus fruit trees with high yield and effective fertilization
In the management of the orchard, some fruit farmers apply fertilizer close to the trunk, which not only damages the root system, but also reduces the fertilizer efficiency. The correct fertilization position should be at the outer edge of the canopy or a little further away.
The absorption of fertilizer by fruit trees is mainly done by the root hairs in the roots. If the fertilizer is applied to the concentrated distribution of root hairs, the fertilizer utilization rate will be increased. The horizontal root distribution of fruit trees is about 1 to 1.5 times the crown diameter of the canopy; the vertical distribution of roots varies with tree species, soil quality and management level. The roots of apples, pears, citrus and grapes are distributed deeper, up to 80 cm. However, most of the absorption roots are concentrated in the depth of the soil layer of 40 to 60 cm. The roots of peach and plum are distributed shallowly, and most of them absorb the roots in a soil layer of about 40 cm. Therefore, when fertilizing fruit trees, it is necessary to carry out the above-mentioned characteristics. When organic fertilizer is applied, the decomposition of organic fertilizer is slow, and the fertilizer supply period is long, and it is suitable for deep application; the fertilizer has greater mobility and can be applied shallowly. For densely planted orchards or closed orchards, it is advisable to apply them deep, but be careful not to hurt or damage the roots. Combined with the application of photosynthetic nutrient film fertilizer (light fertilizer) and plant electronic fertilizer.
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â… Product Composition: polydadmac
â…¡ Product Properties
The appearance of this product is colorless to pale yellow viscous liquid. It is soluble in water. It has goodhydrolyticstability and high adaptability to PH value changes. It`s safe and non-toxic. Its freezing point is about -2.8℃, specific gravity is about 1.04/cm3 and decomposition temperature is 280-300℃. It`s polymeride AKD maturing agent of high charge density. Emulsion provides strong cationic component promotive and protective agent and promotes curing effect. This product is added directly into the synthesis process of intermediates or added a certain ratio in emulsion. This product can be added more in the papermaking system with heavier anionic trash, as the pulp potential equilibrium to play a dual role of sizing enhancement and forcing ripening.
III. Quality indicators;
Appearance: colorless to faint yellow thick liquid Solid content: 40±1%
PH value: 4.0~7.0 viscosity (mpa.s, 25℃): 7000-12000
IV. Application:
This product is applied in alkaline sizing system of AKD (Alkyl Ketene Dimer) to restrict largely the hydrolysis and migration aptitude of AKD. [The third generation" AKD is mainly used for the making of multipurpose duplicating paper filled by precipitated calcium carbonate. 60% cationic polymer can adhere to the fiber after the paper containing cationic polymer being reused, by which enhance hydrophobicity of the paper. Added to waste paper deinking agent, its cationic hydrophilic group adheres to ink particles easily, especially for hydrophobic aniline ink. After flotation, the whiteness of pulp increased. This product is also applied as cationic surfactant in pitch control agent for pulping.
Curing Agent,Poly Dadmac,Paper Curing Agent,Adhesive Curing Agent
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com