After the spring temperature rises, wheat gradually enters the green period. Strengthening field management is conducive to high yields. According to the characteristics of the seedlings, the wheat seedlings can be divided into the following types, because the seedlings take appropriate management measures.
Such wheat fields in Zhuang Miaotian are suitable for wintering before entering the wintering period, with an average of more than 5 per plant and more than 6 leaves at leaf age. The leaves are green, not yellow, and not sharp, and their roots are well developed and grow steadily. Management measures: In order to return to the green stage, control should be taken as the main focus to strengthen the cultivator, promote the growth of the yarrow, and control the occurrence of ineffective tillering; popularize the technology of nitrogen fertilizer transfer, and after the joint polarization begins after the jointing stage, apply urea 7.5 to 10 kg per mu or Three yuan compound fertilizer 15 to 20 kilograms, and reasonable watering according to the sensation.
Wang Changtian's pre-winter group is dense and the plants are tall and tall. The plant height is more than 30 cm. The dark green color of the leaves reveals the ground between the nodes of the stem base and is vulnerable to freezing injury. Main causes: too early sowing or excessive sowing, high temperature before winter, good soil moisture, and rapid growth. Management measures: on the basis of repression, deep cultivating in the returning green period, cutting off roots and spreading leeches, controlling the strong growth; when the first internode is fixed and the second internode grows vigorously, the fertilizer and water management will be carried out, and the urea per acre will be 10-15. Kilograms or compound fertilizers 20 to 25 kilograms; plant growth regulators such as paclobutrazol and mepoxide can also be used, but the dose must be strictly controlled to prevent the growth of wheat seedlings.
The weak seedling field showed thin plants with no or very few tillers. The leaves were fine needles, and the leaves were pale green and grew slowly. Main causes: insufficient base fertilizer, poor soil preparation or poor sowing quality. Management measures: Early earthworm ridges and ridges, promote the early emergence of wheat seedlings, timely application of fertilizer in early spring, apply 10-15 kg of urea per mu, combined with pest control spraying 0.3%-0.5% potassium dihydrogen phosphate solution or 0.5% urea solution , to promote Miaozhuo strong.
The late sowing field wheat seedlings are weak and there is no delivery. Main causes: Affected by the early crops, the late planting period, the accumulated temperature is not enough, the emergence is late, and the growth is slow. Management measures: early ploughing and hoeing, warming and protecting sorghum, and promoting root development; timely fertilization after entering the squat period, applying 15 kg of urea per acre or 25-30 kg of ternary compound fertilizer, and applying reasonable watering according to flood moisture after fertilization to promote the occurrence of tillering , Expand groups.
Such wheat fields in Zhuang Miaotian are suitable for wintering before entering the wintering period, with an average of more than 5 per plant and more than 6 leaves at leaf age. The leaves are green, not yellow, and not sharp, and their roots are well developed and grow steadily. Management measures: In order to return to the green stage, control should be taken as the main focus to strengthen the cultivator, promote the growth of the yarrow, and control the occurrence of ineffective tillering; popularize the technology of nitrogen fertilizer transfer, and after the joint polarization begins after the jointing stage, apply urea 7.5 to 10 kg per mu or Three yuan compound fertilizer 15 to 20 kilograms, and reasonable watering according to the sensation.
Wang Changtian's pre-winter group is dense and the plants are tall and tall. The plant height is more than 30 cm. The dark green color of the leaves reveals the ground between the nodes of the stem base and is vulnerable to freezing injury. Main causes: too early sowing or excessive sowing, high temperature before winter, good soil moisture, and rapid growth. Management measures: on the basis of repression, deep cultivating in the returning green period, cutting off roots and spreading leeches, controlling the strong growth; when the first internode is fixed and the second internode grows vigorously, the fertilizer and water management will be carried out, and the urea per acre will be 10-15. Kilograms or compound fertilizers 20 to 25 kilograms; plant growth regulators such as paclobutrazol and mepoxide can also be used, but the dose must be strictly controlled to prevent the growth of wheat seedlings.
The weak seedling field showed thin plants with no or very few tillers. The leaves were fine needles, and the leaves were pale green and grew slowly. Main causes: insufficient base fertilizer, poor soil preparation or poor sowing quality. Management measures: Early earthworm ridges and ridges, promote the early emergence of wheat seedlings, timely application of fertilizer in early spring, apply 10-15 kg of urea per mu, combined with pest control spraying 0.3%-0.5% potassium dihydrogen phosphate solution or 0.5% urea solution , to promote Miaozhuo strong.
The late sowing field wheat seedlings are weak and there is no delivery. Main causes: Affected by the early crops, the late planting period, the accumulated temperature is not enough, the emergence is late, and the growth is slow. Management measures: early ploughing and hoeing, warming and protecting sorghum, and promoting root development; timely fertilization after entering the squat period, applying 15 kg of urea per acre or 25-30 kg of ternary compound fertilizer, and applying reasonable watering according to flood moisture after fertilization to promote the occurrence of tillering , Expand groups.
Industrial Ppe,Safety Ppe Suit,Disposable Protective Jacket,Protective Disposable Coverall
Taizhou huangyan Yiman industry & trade limited , https://www.yimancoverall.com