CN107298603B

CN107298603B - Nutrition-adjusting foliar fertilizer special for cotton

Info

Publication number: CN107298603B
Application number: CN201710409200.6A
Authority: CN
Inventors: 李鹏程; 董合林; 郑苍松; 孙淼; 刘绍东; 张思平; 陈静; 马慧娟; 庞朝友; 赵新华
Original assignee: Institute of Cotton Research of Chinese Academy of Agricultural Sciences
Current assignee: Institute of Cotton Research of Chinese Academy of Agricultural Sciences
Priority date: 2017-06-02
Filing date: 2017-06-02
Publication date: 2021-01-01
Anticipated expiration: 2037-06-02
Also published as: CN107298603A

Abstract

The invention relates to a nutrition-adjusting foliar fertilizer special for cotton. The composition is prepared from the following components in parts by weight: 3-5 parts of compound sodium nitrophenolate, 150 parts of nitrogen source 100-one and 50-75 parts of potassium source. The nutrition regulation type foliar fertilizer special for cotton has good growth vigor of cotton, remarkable yield increase effect and no remarkable influence on the quality of cotton fibers.

Description

Nutrition-adjusting foliar fertilizer special for cotton

Technical Field

The invention relates to a nutrition-adjusting foliar fertilizer special for cotton, and belongs to the technical field of cotton planting.

Background

The compound sodium nitrophenolate is a strong cell activator, can quickly permeate into a plant body after contacting with the plant, promotes the protoplasm flow of the cell, and improves the cell activity. The compound sodium nitrophenolate is the only artificially synthesized plant growth regulator approved by the United states environmental protection agency in 1997 and entering the United states green food engineering, has no residue problem, can be used in the whole life period of plants, can be used for the treatment of seed soaking, seed dressing, seedbed perfusion, leaf surface spraying, root soaking, stem coating, fruit surface spraying and the like, can be used from seeding to harvesting, and has very remarkable use effect. The dosage of the original medicine of a plurality of plant growth regulators is generally a few horns per mu or even more than 1 yuan, and the dosage of the compound sodium nitrophenolate per mu is only a few cents, which can bring the benefit to farmers. The compound sodium nitrophenolate has magical effect, only a little of fertilizer, pesticide, herbicide and feed are needed to be added, the fertilizer efficiency, the pesticide effect and the weeding effect can be improved, the antagonism can be removed, and the safety coefficient to crops is high.

At present, part of the existing formula of the special foliar fertilizer for cotton is mainly adjusted, and the nutritional growth and reproductive growth of cotton are adjusted by adding one or more exogenous hormones, such as auxin, gibberellin, cytokinin, brassin and the like, so that the price is higher; in addition, part of the formula is mainly nutrient, and the nutrient is promoted to be efficiently absorbed by the cotton leaves by adding major elements of nitrogen, phosphorus and potassium, trace elements of boron, zinc and the like and other chelating agents. The two formulas are different in autumn, the adjusting formula can coordinate the vegetative growth and reproductive growth of cotton, but the using amount of the adjusting formula in different growth periods cannot be accurately quantified, and the side effect can be generated on the contrary if the using amount is not well controlled, and the nutritional condition of the cotton can be rapidly improved if the nutritional foliar fertilizer is applied to the foliage of the cotton, but the vigorous growth of the cotton can be caused if the using amount is too large, the reproductive growth of the cotton can be relatively inhibited, and the yield increasing effect cannot be achieved.

Strong section and the like (2011) report that the spraying of a 1.8% compound sodium nitrophenolate aqueous agent for 2 times in the cotton bud period has the effect of increasing the yield of cotton and has no adverse effect on the quality of cotton fibers. But the problem exists in that the dosage of the compound sodium nitrophenolate is too low to influence the accuracy of the dosage; and the yield increasing effect is not very ideal.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the nutrition and regulation type special foliar fertilizer for cotton, and the compound sodium nitrophenolate, the nitrogen source and the potassium source are combined in a specific proportion, so that the components play a synergistic effect, the obvious yield increase effect on cotton is achieved, and the adverse effect on the quality of cotton fibers is avoided.

The technical scheme adopted by the invention is as follows:

a nutrition regulation type foliar fertilizer special for cotton is prepared from the following components in parts by weight: 3-5 parts of compound sodium nitrophenolate, 150 parts of nitrogen source 100-one and 50-75 parts of potassium source.

Preferably, the nutrition-adjusting type special foliar fertilizer for cotton is prepared from the following components in parts by weight: 3-4 parts of compound sodium nitrophenolate, 150 parts of nitrogen 140-sodium phosphate and 70-75 parts of potassium dihydrogen phosphate.

Further preferably, the nutrition regulation type special foliar fertilizer for cotton is prepared from the following components in parts by weight: 3 parts of compound sodium nitrophenolate, 150 parts of nitrogen and 75 parts of monopotassium phosphate.

Wherein the nitrogen is selected from one or more of urea, ammonium sulfate or calcium nitrate, and urea is preferred.

The potassium source is selected from potassium dihydrogen phosphate and/or potassium polyaspartate, and potassium dihydrogen phosphate is preferred.

The nutrition regulation type special foliar fertilizer for cotton can be prepared by adopting the conventional preparation method in the field, for example, all the components are uniformly mixed according to the proportion, and the invention is not described again.

The invention also provides a fertilizing method of cotton, which specifically comprises the following steps: and spraying the nutrition-adjusting cotton special foliar fertilizer on the leaf surfaces of the cotton from the bud period to the flower-bell period for 4-5 times.

According to the invention, by reasonably configuring the proportion of the compound sodium nitrophenolate, the nitrogen source and the potassium source, the components exert synergistic effect to the greatest extent, good growth vigor of cotton can be ensured, the yield increase effect is very obvious, no adverse effect is caused on the quality of cotton fibers, and the cotton fiber production line has extremely strong operability and is worthy of great popularization.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Example 12016 years left flag leaf fertilizer test

1. Design of experiments

The test site was located in the left flag of AlaLargen of inner Mongolia, the small Charles beach of Ji Lantai town. The area has rich photo-thermal resources, the average annual temperature is 6-9 ℃, the annual precipitation is only 200-400 mm, the frost-free period is about 150 days, and the accumulated temperature of not less than 10 ℃ is generally about 3500 ℃.

The soil type of the test field belongs to clay, the soil fertility is moderate, and the previous crop is cotton.

The test is a cracking zone design, 3 foliar fertilizer treatments are arranged in a main zone and are respectively represented by A, B, C, spraying clear water (ck) is used as a contrast, the components and the using amount of the foliar fertilizer are shown in Table 1, and the water consumption is 15kg (667 m)^-2) The administration time is 6 months and 13 days, 6 months and 23 days, 7 months and 3 days, 7 months and 13 days, and 7 months and 25 days. The secondary area is 2 varieties, which are respectively No. 50 of Zhongmiao and No. 1 of Tianyuan. Investigation of different compositionsThe influence of the application of the foliar fertilizer on cotton boll weight, yield and fiber quality provides a theoretical basis for the development of novel foliar fertilizers.

The field planting mode is 1 film 6 rows, the row spacing is (66+10) cm, 2 films are used for 1 cell, the length of the cell is 7.2m, and the area of the cell is 32.8m²Each treatment was repeated 4 times.

TABLE 1 Experimental dosage of foliar fertilizer formula (unit: g 667 m)^-2)

Treatment of	Compound sodium nitrophenolate	Gibberellins	Urea	Potassium dihydrogen phosphate
					A	3	0	0	0
B	3	0	150	75
					C	0	1	150	75
ck	0	0	0	0

Remarking: the spraying time of the 1 st time is 6 months and 13 days, the water consumption for each treatment is 4.5kg, and the potassium dihydrogen phosphate is not added in the treatment 2 and the treatment 3. The gibberellin concentration is 20 mg.L^-1It is first dissolved in alcohol. The amount of water applied in 7/3/day spray was doubled, and the dosage was also doubled.

2. Fertility survey and yield

The sowing period is 4 months and 29 days, the emergence period is 5 months and 9 days, the bud period is 6 months and 20 days, the flowering period is 7 months and 21 days, and the boll opening period is 8 months and 21 days. The results of the 7 month 25 day survey showed (Table 2).

Table 27 month 25 day Individual plant survey results

As can be seen from Table 2, the plant height of A, B, C treated by the foliar fertilizer is obviously higher than that of the control, which indicates that the growth vigor is stronger than that of the control after the foliar fertilizer is treated, and the effect of promoting the vegetative growth of the Tianyuan No. 1 foliar fertilizer is better than that of the Zhongmiao cotton institute 50.

TABLE 39 month 28 days measurement of yield

Note: the weight of bolls is 9 months, and 50 bolls are taken from 28 continuous single plants.

As can be seen from Table 3, the foliar fertilizer treatment shows a more increased yield than ck, the yield increasing effect of the treatment A does not reach a significant level, but the yield increasing effect of the treatment B, C reaches a significant level, and the yield increasing effect of the treatment B is optimal.

TABLE 4 comparison of foliar fertilizer fibre qualities

Note: the fiber quality was measured at 9 months and 50 rings from 28 continuous individual plants.

As can be seen from table 4, foliar treatment A, B, C had no significant effect on cotton fiber quality.

3. Conclusion

Under the test condition, the compound sodium nitrophenolate (3g 667 m) treated by the A treatment is sprayed on the leaf surfaces^-2) Compound sodium nitrophenolate (3g 667 m) treated with B^-2) + Urea (150g 667m^-2) + potassium dihydrogen phosphate (75g 667 m)^-2) And C treating gibberellin (1g 667 m)^-2) + Urea (150g 667m^-2) + potassium dihydrogen phosphate (75g 667 m)^-2) Compared with the control group ck, the cotton fiber yield increasing agent has yield increasing effect and has no obvious influence on the quality of cotton fibers. The yield increasing effect of the compound sodium nitrophenolate, the urea and the monopotassium phosphate treated by the B treatment is obvious, and the yield increasing effect of the compound sodium nitrophenolate, the urea and the monopotassium phosphate treated by the B treatment is optimal.

Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A cotton fertilization method is characterized in that a nutrition-adjusting cotton special foliar fertilizer is sprayed on leaf surfaces of cotton from a bud period to a boll period for 4-5 times;

the nutrition regulation type foliar fertilizer special for cotton is prepared from the following components in parts by weight: 3 parts of compound sodium nitrophenolate, 150 parts of urea and 75 parts of monopotassium phosphate;

the spraying amount each time is as follows: compound nitreSodium phenolate 3g 667m^-2150 g-667 m of urea^-2Potassium dihydrogen phosphate 75 g.667 m^-2。