The main crops in Shuangxia are fertilized.

The fertilization technology of late rice is largely the same as that of early rice. It is the principle of mastering the “between tapping and protecting the tail”. The early growth period of early-maturing cultivars is shorter and the method of fertilization can be applied with reference to early rice. However, early-season rice varieties have been shortened for several days due to the fact that their fertility period is shorter than early production, and each technical link is shortened earlier than early production. The use of rice stalks and other crop drafts or use of organic fertilizers that have not been matured to make late basal fertilizers should be coordinated with the use of lime to accelerate decomposition of fertilizers. Typical late-maturing late-maturing cultivars have a relatively long period of growth, and late-stage gestation cultivars are mostly in the late fall and high-growth stage.

According to the high-yield cultivation experience in the Chaoshan region, the late rice infertility tail fertilizer can be divided into two kinds of panicle fertilizer and grain fertilizer.

Red feet apply panicle fertilizer. When the autumnal equinox is turned, the seedlings have been transferred to red stalks for a hard time and can be used for panicle fertilizer. This fertilizer can make part of the late tillage into a panicle, which is also conducive to the development of young panicles and the growth of panicles and grains; however, at this time, the stems and parietal leaves of the seedlings are still not shaped so as to avoid too long fertilization. Mushi ammonium sulfate 8-10 pounds. If the deficit is insufficient, no panicle fertilizer can be applied.

Whether the redness is sufficient can be identified from the following performances of the seedlings: 1. The seedlings reach the “four-leaf-leaf-yellow-leaf-yellow”, that is, there are three or four leaves on the upper part of the leaves and the green leaves have two leaves chlorosis or dryness. It shows that the leaves are dry and the feet are dry. 2. The penultimate leaf of the main stem (the next leaf of the parietal lobe) and the penultimate leaf of the tiller, such as ragged, indicate insufficient nutrient delivery. Seedlings without the above performance show that if the redheads are not full-fat fertilizers, they must be slowly applied or not applied.

It is generally appropriate to apply panicle fertilizer about 7 days after the autumnal equinox. At this time, the top and bottom leaves of the main ear have been extracted and fertilized, the leaves will not become longer, and the widening will only enable the leaves of blue-green leaves to grow quickly and neatly. The panicle fertilizer, such as ammonium sulfate, can be used for about 10 pounds per mu. If the seedlings are too young and green, the panicle fertilizer cannot be applied. However, some rice fields have applied a fertilizer once during the equinox, as long as the seedlings are not weak and the leaf color is lighter than the weather.

Cold dew granules. Applying a strong grain fertilizer after cold dew is beneficial to reducing head and neck weight and increasing grain weight and grain weight. Strong grain fertilizers generally apply 8-10 pounds of ammonium sulfate or 5-6 pounds of urea per mu. When fertilizing, it depends on the growth of the seedlings and pays attention to the appropriate amount. If the seedlings do not show the lack of fertilizers, applying the fertilizers or over-fertilizing them will increase empty grains and cause diseases and lodging. In particular, it will be even more harmful if it encounters rainy weather after application.

Before rice is used for heading, stripping plants can be used to determine whether to apply high-yield fertilizer: if the grain of the tail of the ear is blue, the blue stems are also green and the foot color is blue; for example, the grain at the end of the ear is blue and white. White twigs with yellowish white indicate lack of fertilizer. For example, when the heading is less, the neck grain and the branch stems with green color indicate the foot fat; the more the spiked branch stemmed from the neck, the slower integration of a slow-grained grain and the twigs with the yellow-green color indicate the lack of fertilizer. In short, when the panicles show a lack of fertilizer, they can not be applied when they are capable of applying a strong fertilizer. When fertilizing, it depends on the weather, such as fertilization immediately after exposure to cold dew, rice is even more victimized. In the late stage of rice growth or after being affected by cold dew, the use of potassium dihydrogen phosphate 3-4 plus two urea 0.5-1 catties watered 120-150 pounds per acre has a good effect.

>>vegetables

The principle of fertilization for vegetables is that organic fertilizers and inorganic fertilizers should be given reasonable attention to the application of organic fertilizers; reuse and deep application of base fertilizers should be suitable for top-dressing; and the ratio of nitrogen, phosphorus and potassium should be suitable for the application of trace element fertilizers to optimize fertilizer application period, fertilizer application amount, and fertilizer application proportion.

The specific fertilization recommendations for various types of vegetables are as follows:

Leaf vegetables. According to the yield of 1000 kg of leafy vegetable per mu, the amount of manure used for composting livestock manure is 150-250 kg Urea 7-15 kg superphosphate 5-10 kg potassium chloride 3-7 kg. All organic fertilizers and phosphorus fertilizers were used as base fertilizers. Nitrogen fertilizers and potassium fertilizers were applied 4 to 7 times in 3-4 days after planting and then applied once every 7 days.

Melons. According to the production of 1,000 kg of per mu, the yield of poultry manure feces 350-500 kg of urea 22-30 kg of superphosphate 18-40 kg of potassium chloride 15-30 kg. 80% of all organic fertilizers, phosphate fertilizers, and 20% of nitrogen and potassium fertilizers were used as base fertilizers. Total fertilizer was applied 8-10 times every 7-10 days. Nitrogen fertilizers were topdressed before squash and accounted for total nitrogen recovery. 50% - 60% of potassium fertilizer is applied to the top 60% - 70% of the total amount of potassium fertilizer after applying the sapling. Phosphatic fertilizer applies topdressing before squashing by spraying or burying after application; trace elements are sprayed during the flowering period. Foliar fertilizer 3-4 times.

Beans. According to each 1000 kg of beans, the amount of mu will be used to compost the livestock manure organic fertilizer 350-500 kg urea 8-18 kg superphosphate 8-20 kg potassium chloride 8-20 kg. 20% of total phosphate fertilizer, organic fertilizer and nitrogen and potassium fertilizer were applied as base fertilizer. Totally 5-8 times of top-dressing fertilizer was applied for 5-8 times topdressing nitrogen fertilizer every 10-15 days from 7 days after colonization. 70% of the topdressing potassium fertilizer was applied before the initial stage of flowering and scabbing. After the flowering and scabbing, application of boron, molybdenum, and other fertilizers was appropriate.

Solanum species. For each kilogram of kigatocaramboogenic fruit produced, the maturity of livestock manure is 400-500 kilograms of urea, 20-30 kilograms of superphosphate, 30-50 kilograms of potassium chloride, 25-35 kilograms. All organic fertilizer and phosphate fertilizer 20% nitrogen and potassium fertilizer as a base fertilizer deep application. Dressing fertilizer should be lightly applied to stabilize the flower buds and apply heavy fertilizers.

60% of topdressing nitrogen fertilizer applied 70% of topdressing potassium fertilizer before flowering stage. After applying fertilizer, 6-9 times of top dressing fertilizer was applied in the whole period of the flower bud. Top dressing fertilizer was applied once every 10 days after planting for 5-7 days. - 3 times fertilization once every 5-7 days after flowering period.

>>peanut

The ratio of nitrogen, phosphorus and potassium absorbed by peanuts is 3:0.4:1. Peanut growth process needs to absorb a variety of nutrients including nitrogen, potassium, calcium, magnesium, sulfur and other large and medium-sized elements and boron, molybdenum, iron, zinc, manganese, copper, chlorine and other trace elements. Generally about 4 kg of pods are required for producing about 4-6 kg of phosphorus, 0.5-1.3 kg of potassium and 2-4 kg of potassium.

Reasonable use of fertilizers can increase peanut production and improve quality. Fertilizer absorption at seedling stage is less than 10% of the total amount. Nitrogen, phosphorus, and potassium require a critical period of fertilization at this time. If there is a shortage of fertilizer, this will prevent the emergence of strong seedlings and nodule formation. The early flowering needle stage of late-maturing peanuts or the late-maturing peanut pod stage is the absorption of nitrogen, phosphorus, and potassium fertilizers during the peak period of uptake of fertilizers by about 60% of the total and the absorption of ripe fruit during the ripening period only accounts for about 10% of the total. .

Peanut fertilization technology is as follows:

base fertilizer. Peanut should focus on basal fertilizer. In general, farmyard manure is applied per acre 1000-1200 kg Ammonium sulphate 5-10 kg Calcium magnesium phosphate fertilizer 15-25 kg Potassium chloride 5-10 kg. The basal fertilizer should be mixed with fertilizers for farmhouses for about 20 days and then delaminated fertilization 2/3 deep for 30 cm depths of soil 1/3 for 10-15 cm deep soil layers. In order to prevent the peanuts from growing in size, the farmhouse can be used to apply nutrients to peanuts before it is beneficial to the rhizobia and not to increase the amount of organic matter.

Fertilizer. About 1000 kg of good quality organic fertilizer was mixed with 5-10 kg of diammonium phosphate or 15-20 kg of calcium magnesium phosphate fertilizer. In addition, 0.2 kg of peanut rhizobium combined with 10-25 g of ammonium molybdate for seed dressing before peanut seeding can achieve better economic benefits.

top dressing. Generally used for basal, seed-fertilized wheat sets of peanuts or summer peanuts. Mushi decomposed organic fertilizer 500-1000 kg urea 4-5 kg ​​superphosphate 10 kg before the beginning of peanut application. Can also be used 0.3% of potassium dihydrogen phosphate and 2% urea solution in the late combination of peanut leaf spot control, rust and fungicides mixed with foliar spray 2-3 times.

Micro fat. In the more alkaline calcareous soil to consider the application of iron, boron, manganese and other trace fertilizers; in the rainy areas of the acidic soil should pay attention to molybdenum, boron and other fertilizers. Microelement fertilizer can be used as base fertilizer, seed fertilizer, soaking seed, seed dressing, and root spray. Generally, the effect of spraying and applying spraying at the flowering stage is best. The best concentration is 0.1%-0.2% when spraying.

>>sweet corn

Considering corn's nutritional characteristics, corn needs more fertilizer and more concentrated attractant fertilizer. It needs to absorb 2.7 kg of nitrogen per 100 kg of grain, phosphorus, 1.04 kg of potassium, 2.54 kg of NPK, and the ratio is 2.7:1:2.68. This can be used as a reference for fertilizer demand. .

During the period from jointing to pollination, the absorption of nitrogen, phosphorus, and potassium in maize reached a peak. Nitrogen accounted for 55%-60% of total absorption during the whole growth period. Phosphorus accounted for 55%-60% of potassium accounted for 70%-100%. This is the nutrient absorption of maize. The first peak. From pollination to maturity, especially grain formation to grain milk maturity, is the second peak of corn uptake. Under the target yield of 400-500 kg per mu, sweet corn can be applied with 8-9 kg of nitrogen, 5-6 kg of phosphorus, and 7-8 kg of potassium to obtain higher yield and better quality.

Sweet corn fertilization should master the application of adequate basal fertilizer applied fertilizer. In the early stage, we saw the principle of heavy panicle fertilizer in the later stage of seed dressing. In order to ensure the sweet corn to mention the morning market and extend the supply time, measures such as mulching and staged sowing can be adopted. The sowing depth should be 3-5 cm. Proper close planting can increase the number of spikes per unit area, but close planting should take into account factors such as variety, fertilization level, and planting methods. details as follows:

base fertilizer. Organic manure-based fertilizer is supplemented with 2000 kg of fertilizer per mu and 20 kg of compound fertilizer. Requirements N:P:K=1:0.7:1.3 plus trace element zinc sulfate 1.5-2 kg borax 1-1.5 kg of which zinc sulfate and borax first use 25-50 kg dry manure or pond mud mix and then urea, Superphosphate, potassium chloride and other mix can be used with the use of long-term placement of potassium chloride urea absorption but no effect on fertilizer efficiency.

Seedling fertilizer. In the five-leaf period, the seedlings were planted in shallow medium-time tillage soil and then topdressed with 10 kg of urea per acre. Sweet corn seedling drought-suitable soil moisture is 60% -70% of the field water capacity. Seedlings are most afraid of damaging the flooding overnight. Fertilizer can accelerate leaf differentiation, increase leaf total number, increase leaf area and promote tassel development. The high oxygen demand of sweet corn roots requires good soil porosity and ventilation. In the seedling stage, timely cultivation of cultivating loose soil is an important measure to promote the deepening of the root system. If the cultivating loose soil soil moisture is not carried out, the root elongation will cause a decrease in production.

Jointing stage fertilizer. During the jointing stage of maize, the top-hatching fertilizer has the role of promoting roots, strengthening seedlings, and promoting the growth of leaves. Fertilizing method: 10-15 cm deep ditching, covering the soil after applying per acre, and applying 30-30 kg of compound fertilizer to irrigate the roots. Acid calcium treasure 300 times +0.1% borax.;

Booting stage (big bell) attack panicle fertilizer. The Spikelets of the Spike Differentiate in the 12th to 14th Leaves of the Maize. When the vegetative growth goes to the reproductive stage, it is very important that the timing of applying the spike fertilizer is best in the spikelet and florets differentiation stage. Generally applied 12 days before tasseling. Requires complete nitrogen, phosphorus, and potassium. Among them, potassium absorption is the most followed by nitrogen and phosphorus. Tasseling and flowering period is the sensitive period of sweet corn to water requirement 80% of field water content in soil water content is the period of the most water requirement during the entire growth period, “half of the drought during the flowering period reduces production” and even the male flower cannot be extracted. Sufficient water in the tasseling period is extremely important for high yields. At the end of pollination (with the withered filaments), removal of tassels can reduce aphid damage. Later removal of large grass can avoid nutrient contention to prevent lower leaves from falling and reduce pests and diseases. 30-40 pounds of self-mixed compound fertilizer per acre and irrigation.

Granulation fertilizer during grain filling. Female corn flower silk pollinated brown corn into the reproductive growth period during this time, said top-dressing fertilizer can promote grain fullness and increase grain weight. This period with the humic acid calcium treasure 300 times + 0.1% potassium dihydrogen phosphate do root dressing effect is better. Boron and zinc, which are more sensitive elements of corn, can promote the establishment of reproductive organs to prevent empty ears. When the soil available boron is below 0.5mg/kg, borax 0.5-1.0kg can be used as base fertilizer. It can also be sprayed with a concentration of about 0.1%. A total of 3-4 sprays were sprayed every 7 days starting from the elongation period of the ear. Zinc deficiency can easily cause "white bud disease". When the available zinc content of the soil is below 1mg/kg, 1.5-2.5kg of zinc sulfate should be applied per acre or sprayed with 0.1% zinc sulfate for 2-3 times during the elongation of the female ear.