Agricultural Products Lists
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How to prevent premature senescence in the later stage of cotton?
How to prevent premature senescence in the later stage of cotton? Please introduce the method the internal reason for the early senescence of cotton is that after cotton growth entered August, there was a fierce competition for nutrients among roots, stems, leaves and bolls, resulting in an imbalance between nutrient supply and demand; the external cause was the lack of water and fertilizer in the later stage of cotton fields. such as phosphorus deficiency or deficiency.
2018-07-18 -
How to fertilize cotton in the later stage?
How to fertilize cotton in the later stage? Please introduce the method around mid-late September is the late growth stage of cotton, during this period, the nutrient absorption capacity of cotton root system decreases obviously, but if nitrogen, phosphorus, potassium, zinc, boron and other fertilizers are sprayed on cotton leaves, it can prevent premature senescence, promote precocious maturity, prevent disease, prevent boll falling, and knot.
2018-07-18 -
What should I pay attention to in the later stage of planting cotton?
What should I pay attention to in the later stage of planting cotton? Please give an introduction to planting cotton to the later stage should pay attention to the following points: pay attention to drainage when cotton is in the flowering and bolling peak period, rain is large, light is less, the field water capacity is basically saturated, keep the cotton field drainage unblocked, and it is particularly critical not to have ponding. After a few minutes, I went to the bathroom.
2018-07-18 -
How to promote and control the cultivation of summer sesame?
How to promote and control the cultivation of summer sesame? Please introduce the technical system of promoting and controlling cultivation of summer sesame through the study of supporting cultivation techniques according to the principles of correlation of sesame characters, plant stage development, stage nutrition absorption and factor interaction. The technical indexes of promotion and control are as follows: (1) the plant is strong but not prosperous at seedling stage. Plant at seedling stage.
2018-07-18 -
What are the main management of planting black sesame in summer?
What are the main management of planting black sesame in summer? Please give an introduction to planting black sesame in summer management can refer to the following points: first, timely determine seedlings, check seedlings to fill gaps: because sesame seeds are small and have a large number of seedlings, seedlings should be sparse when they grow into the first pair of true leaves, seedlings should be sparse when they grow to 2-3 pairs of true leaves, and seedlings should be fixed when 4 pairs of true leaves grow.
2018-07-18 -
How to prevent cotton from rotten bolls (peaches) in rainy season?
How to prevent cotton from rotten bolls (peaches) in rainy season? Please introduce the rainy season can refer to the following methods to prevent cotton boll rot (peach): 1, scientific fertilization: at present, most of the cultivation is insect-resistant cotton, generally requires a large amount of base fertilizer and bud fertilizer, do not apply flower and boll fertilizer, in order to prevent excessive growth, shade aggravation. It is necessary to control nitrogen and increase phosphorus.
2018-07-18 -
What causes cotton to prevent acute wilting after rain?
What causes cotton to prevent acute wilting after rain? Please introduce the causes of acute wilting of cotton: first, the lack of oxygen in the soil. After waterlogging, the root oxygen supply is insufficient, which suffocates the root and affects the normal absorption function of the root. The longer the suffocation time is, the more serious the root damage is. Second, improper fertilization. One-time chase.
2018-07-18 -
What are the main cotton diseases and insect pests in summer and autumn?
What are the main cotton diseases and insect pests in summer and autumn? Please introduce the main cotton diseases and insect pests and their control methods in summer and autumn: first, the occurrence trend of diseases and insect pests (1) Cotton blind bugs: it is expected to occur in the middle of the flowering and boll period, and the peak period of occurrence is from late August to early September.
2018-07-18 -
How to control the crazy growth of cotton in summer?
How to control the crazy growth of cotton in summer? Please introduce the methods to control the excessive growth of cotton in summer. We can refer to the following methods: timely chemical control and spraying metoprolol or prophylaxis can control cotton plant growth, improve plant shape, and produce more buds and bolls. At the early flowering stage, use 6ml / mu of zhuangzhuangsu or 1.5g / mu of propranolol and 25 g of water.
2018-07-18 -
How to prevent cotton bolls from falling off at high temperature?
How to prevent cotton bolls from falling off at high temperature? Please introduce control methods cotton high temperature boll drop can refer to the following methods for control: first, heavy application of flower boll fertilizer. Flower and boll fertilizer is usually applied in 2-3 times. The first and second treatments were applied at flowering and about 10 days after flowering. Acre dressing available nitrogen fertilizer 10 - 15 kg, potassium...
2018-07-18 -
How to control the blind Toona sinensis by planting cotton?
How to control the blind Toona sinensis by planting cotton? Please introduce the method that cotton blind stink bug can cause harm in cotton seedling stage and bud and boll stage. Now it is the bud blooming and boll setting period of cotton reproductive growth, and it is also the main harmful period of blind stink bug, which can cause cotton buds and bolls to fall off. And the current transgenic insect-resistant cotton on the blind Toona sinensis and other piercing.
2018-07-18 -
How should cotton be managed in the middle and later stages of planting?
How should cotton be managed in the middle and later stages of planting? Please give guidance on cotton management methods in the middle and later period, you can refer to the following methods: first, pruning management. For the luxuriant branches and leaves that have covered the whole cotton field, the old leaves, yellow leaves and empty branches without buds in the lower part of the main stem can be removed to achieve the effect of light transmission.
2018-07-18 -
How to manage cotton in the middle and later stage?
How to manage cotton in the middle and later stage? Please introduce the management methods of cotton in the middle and later stage, we can refer to the following methods for management: first, flower and boll stage management (1) re-application of flower and boll fertilizer, application of top fertilizer. Cotton usually blossoms around July 10. Fertilization at the flower and boll stage generally accounts for 50% of the topdressing amount in the growth period, which can be advanced appropriately.
2018-07-18 -
How to prevent low yield from planting soybeans?
How to prevent low yield from planting soybeans? Please give guidance in the current agricultural production, growing soybeans basically do not apply fertilizer (especially in summer soybean producing areas). The main reason is that most people think that soybeans can fix nitrogen, grow soybeans without fertilization, and leave a certain amount of nitrogen for subsequent crops. It is precisely because of this misunderstanding that leads to health.
2018-07-18 -
What diseases should be controlled when planting soybeans?
What diseases should be controlled when planting soybeans? Please introduce the diseases that need to be controlled in planting soybean: 1. Soybean root rot: the disease can occur and cause damage throughout the growth period of soybean, with a yield reduction of 25-75% or more. The protein content of the damaged seeds decreased significantly, and the main symptom was the appearance of black brown at the base of the stem.
2018-07-18 -
What temperature is suitable for the growth and development of sorghum?
What temperature is suitable for the growth and development of sorghum? Please introduce that the optimum temperature for sorghum seed germination is 1835 ℃, the temperature is too high, the seedlings are high and thin; if the temperature is too low, pollen seeds will occur in the heavy ones, and the seedlings will grow slowly in the light ones. The optimum temperature for seedling growth and development was 20-25 ℃, and during jointing and booting stage.
2018-07-18 -
What is the water suitable for the growth and development of sorghum?
What is the water suitable for the growth and development of sorghum? Please introduce the soil moisture content 15% to 20% before sowing. The water demand at the seedling stage accounts for 8% to 15% of the total water demand during the whole growth period. When the soil water content is 50% ~ 65% of the maximum field water holding capacity, it is the most suitable. Properly control soil moisture in the seedling stage.
2018-07-18 -
When is the best time to top fertilizer when planting sorghum?
When is the best time to top fertilizer when planting sorghum? Please give guidance to sorghum: in order to meet the nutrient needs of sorghum from jointing to heading, the first fertilizer should be applied at jointing, 150 kg of ammonium nitrate per hectare or 120 kg of urea per hectare, and the second fertilizer should be applied at the flag stage of booting. Ammonium nitrate is applied per hectare.
2018-07-18 -
How to grow sorghum in dry land?
How to grow sorghum in dry land? Please introduce planting methods Dryland sorghum planting can refer to the following methods: First, preparation before sowing 1, soil preparation: After autumn harvest, the plots with good moisture content should be combined with autumn ploughing mu fertilizer 1500--2000 kg, and after ploughing, timely harrowing to preserve moisture; the plots with poor moisture content can not be turned or ridged.
2018-07-18 -
How to fertilize sorghum?
How to fertilize sorghum? Sorghum has wide adaptability to soil and strong fertilizer absorption. it is easy to get high yield when planted on sandy loam with rich organic matter and high fertility. in lean dry land, lack of phosphorus and low potassium, it is necessary to apply more fertilizer in order to get a good harvest. Sorghum seedling plant is small, need not much fertilizer.
2018-07-18