Spraying foliar fertilizer in the late stage of rice growth is an effective measure with low cost, less fertilizer, and significant yield increase.
First, grasp the opportunity
It is generally most suitable for spraying in early rice, early spike, grouting and heading, and it takes more than one hour to spray per acre. If the spraying is in the period of blooming and flowering, it should be sprayed before the morning and after 4 pm; if it is in the thoracotomy and filling period, it will be sprayed before 11 am or after 4 pm on sunny days.
Second, processing liquid fertilizer
Various quick-acting NPK fertilizers, potassium dihydrogen phosphate, triacontanol, borax, silkworm manure, human and animal urine can be used as foliar fertilizer, and the amount per acre is not much, but it must be processed into liquid fertilizer first. The day before the spraying of the quick-acting fertilizer is dissolved with 5-10 times of water to prevent the burning of the leaves. The human and animal urine should be firstly decomposed in the pool, the silkworm dung should be dissolved in 10 times of water, filtered after 24 hours, and then sprayed on the foot water; the borax is first broken, mixed with a small amount of water to form a concentrated liquid, and then sprayed on the sufficient water. .
Third, according to the growth of the seedlings
The leaves are green and green, and the heads are neatly sprayed with phosphorus and potassium mixed fertilizer. 0.25 grams of urea per mu, 0.5 kilograms of superphosphate, 0.25 kilograms of potassium chloride plus 60 kilograms of water; or 2.5-3.7 kilograms of fermented bovine urine per acre, 60 kilograms of water per kilogram of superphosphate; or 0.5 kilograms of urea, 100 g of potassium dihydrogen phosphate was sprayed on 60 kg of water. The leaves are green and yellow, the growth is not neat, the field is thin and the field is thin, the nitrogenous fertilizer is the main, and the nitrogen and phosphorus are combined. 0.8 kg of urea per acre, 0.5 kg of superphosphate, 60 kg of water. This field should be sprayed 1-2 times more. The seedlings grow well, the leaves are dark green on the upper or middle and upper fields, sprayed with potassium dihydrogen phosphate, 100 grams of phosphorus and potassium per acre, or 1.5 to 2 kilograms of fresh plant wood ash (first with hot water 5-8 kg dip) 2-3 hours).
First, grasp the opportunity
It is generally most suitable for spraying in early rice, early spike, grouting and heading, and it takes more than one hour to spray per acre. If the spraying is in the period of blooming and flowering, it should be sprayed before the morning and after 4 pm; if it is in the thoracotomy and filling period, it will be sprayed before 11 am or after 4 pm on sunny days.
Second, processing liquid fertilizer
Various quick-acting NPK fertilizers, potassium dihydrogen phosphate, triacontanol, borax, silkworm manure, human and animal urine can be used as foliar fertilizer, and the amount per acre is not much, but it must be processed into liquid fertilizer first. The day before the spraying of the quick-acting fertilizer is dissolved with 5-10 times of water to prevent the burning of the leaves. The human and animal urine should be firstly decomposed in the pool, the silkworm dung should be dissolved in 10 times of water, filtered after 24 hours, and then sprayed on the foot water; the borax is first broken, mixed with a small amount of water to form a concentrated liquid, and then sprayed on the sufficient water. .
Third, according to the growth of the seedlings
The leaves are green and green, and the heads are neatly sprayed with phosphorus and potassium mixed fertilizer. 0.25 grams of urea per mu, 0.5 kilograms of superphosphate, 0.25 kilograms of potassium chloride plus 60 kilograms of water; or 2.5-3.7 kilograms of fermented bovine urine per acre, 60 kilograms of water per kilogram of superphosphate; or 0.5 kilograms of urea, 100 g of potassium dihydrogen phosphate was sprayed on 60 kg of water. The leaves are green and yellow, the growth is not neat, the field is thin and the field is thin, the nitrogenous fertilizer is the main, and the nitrogen and phosphorus are combined. 0.8 kg of urea per acre, 0.5 kg of superphosphate, 60 kg of water. This field should be sprayed 1-2 times more. The seedlings grow well, the leaves are dark green on the upper or middle and upper fields, sprayed with potassium dihydrogen phosphate, 100 grams of phosphorus and potassium per acre, or 1.5 to 2 kilograms of fresh plant wood ash (first with hot water 5-8 kg dip) 2-3 hours).
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