According to the growth characteristics and fertilizer characteristics of cotton during each growth period, the targeted application of fertilizer, so that cotton is "satisfied" but not enough, to eat not "lack of food", to maintain a balanced and stable, so that cotton is planted early, stable 6 The month is long, the month is long, the month is not early, the month is not early, the month is not greedy, the scorpion is in November, and the inner, middle and outer are formed into a bell. The upper, middle and lower three peaches are full, plum, High-yield structure of volts and autumn three peaches.
The demand ratio of cotton to NPK is 1:0.4:0.8. For every 200 kg of lint produced, 37 kg of pure nitrogen, 14 kg of phosphorus and 30 kg of potassium are needed. In particular, organic fertilizer should be added to improve soil, water and fertilizer. To improve the utilization rate of fertilizers, we can achieve stable production and high yield.
The specific fertilization technical requirements are:
1. Organic bio-fertilizer for bauxite: Fertilizer for nutrient bauxite is very important. In the public security county, there is a case of applying inorganic fertilizer to the bauxite, the fertilizer formula is not correct, and the fertilizer is dead, and the unfertilized organic fertilizer is applied and the root is dead. Miao's, the correct way to fertilize the soil is to deepen the pour of the biogas and add the amount of superphosphate before the seal, and the seal is piled up. Before the mashing, the 3,000 rams are mixed with the “Cunong†brand seedling fertilizer 6 kg, which can be advanced. Mix well and mix, or do it while mixing. It is generally required to be in the stage of April 15 to 25, sunny for 3 days, and the ground temperature is above 12 °C.
2, the use of organic and inorganic nest fertilizer: the nest fertilizer has become the first use of fertilizer in the cotton field, fertilizer selection is very important, for several years to promote the "Chu Nong" brand bio-organized nest fertilizer, a good solution to rooting With the problems of survival, disease prevention and long seedling, quick effect and long-term effect, after planting, rooting is good, survival is fast, growth is stable, and the branches are early, which really plays the role of wolf fertilizer. 20 pounds per mu, one lost 6 nests.
3, bud fertilizer with compound bio-organic fertilizer + phosphorus potassium micro-fertilizer: cotton see buds Shi Lei fertilizer, one is early, the second is to use fertilizer, mainly organic fertilizer, blending appropriate amount of phosphate fertilizer, potash fertilizer and micro-fertilizer. It is required to apply about 60-240 kg of bio-organic fertilizer per acre to 30 kg of phosphate fertilizer, 30 kg of potassium fertilizer, and 3 kg of boron-zinc fertilizer per mu. It can also be used to refine organic and inorganic compound fertilizer 80-120 kg+ boron. Each of the zinc fertilizers is 3 kg, and the ditching strip is applied or a small-sized cultivating machine is adopted. Fertilization, loosening, weeding and cultivation are completed at one time.
4. Organic and inorganic compound fertilizer + compound fertilizer for peach fertilizer: On July 10, when the cotton plant has 1 to 2 peaches, the organic and inorganic compound fertilizer is 80 kg + urea 15 kg per acre. The interval is 15 days. Apply 30-40 kg of compound fertilizer per acre.
5, the top of the fertilizer to spread the quick-acting nitrogen fertilizer: around August 8th, the cotton plant 20-22 fruit branches pick the top heart. The strong field, after picking the top 2 acres of urea 25 kg, the weak field in the 3 days before the picking of the acre 30 kg of urea, the weather is dry and dry, the ground is dry, after 5 pm, full The effect of the field is good, don't wait for the rain to spread.
6, Zhuangqiu peach fertilizer to see the field to fill the urea: August 25 ~ September 1, cotton plant back foot, flower buds more fields, acres of urea 15 kg, strong autumn peach, grow peach, due to climate change, In recent years, the flowers that were opened before September 20 can bear big peaches. It is impossible to spread without spreading fertilizer.
7, adhere to the foliar fertilization throughout the whole process: from the bud period to mid-September, add foliar fertilizer. According to the seedlings, the fertilizer is selected. The potassium-containing elemental fertilizer is used in the Wangtian block and the potassium-deficient field. The balance is adjusted, and the growth is weak and the nitrogen-deficient field is weak. The amino acid and humic acid foliar fertilizer are used. Normal condition, the flower bud period Spray 3 to 4 times of Tianfeng Brassin to increase a variety of nutrients, and maintain the special effects of flowers and fruits.
Here you can find the related products in Flange Nuts, we are professional manufacturer of Large Flange Nuts, Hexagon Flange Nuts, Special Flange Nut, Nylon Lock Flange Nuts. We focused on international export product development, production and sales. We have improved quality control processes of Flange Nuts to ensure each export qualified product.
If you want to know more about the products in Flange Nuts, please click the product details to view parameters, models, pictures, prices and other information about Large Flange Nuts, Hexagon Flange Nuts, Special Flange Nut, Nylon Lock Flange Nuts.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Flange Nuts!
Nuts Screws,Hexagon K Nuts,Open End Rivet Nut,Carbon Steel Flat Head Rivet Nut
Suzhou Gubao Screws Co.,Ltd. , https://www.hongyiscrew.com