1 Selection of Water-to-Fat Dry Maize Variety Selection of paddy-field corn varieties is the most important technical link to achieve high-yield harvest. Drought-reducing soil is more difficult to grow than ordinary dry land, poor permeability, low temperature and lack of beneficial microorganisms in dry field crops.
The first is not conducive to the seed germination and normal emergence of maize, often there are large areas of missing shoots and three types of seedlings, and ultimately lead to severe production cuts; Second, is not conducive to the growth and development of corn seedlings, adverse soil conditions often make corn physiological metabolism Misadjustment, uneven growth in the field (the so-called cloud seedlings), some species will also appear a lot of purple seedlings, yellow seedlings, slow growth, especially in the spring when the cold weather is more serious. Therefore, when paddy fields are replanted into dry land, first of all, varieties with low temperature tolerance, hard coleoptiles, strong arching ability, fast seedling growth, and well-developed root systems should be selected.
The second is to select seeds with good seed maturity, no frostbite, high germination rate, strong bud potential, and to lay the foundation for the transformation of dry maize seedlings, seedlings, seedlings and seedlings;
The third is to select suitable varieties for the growing season. Due to the low soil temperature and slow temperature rise in the paddy fields, the soil compaction is not conducive to the early development of maize and the growth period is prolonged. Special attention must be paid to the fact that varieties with long ripening periods cannot be selected. The longest period in Shenyang is not allowed. More than 130d.
The fourth is to choose varieties with good resistance, mature stems, premature aging and lodging resistance. The water content of paddy soil is high, and the seedlings cannot stand up in the early stage, which often causes the plants to be high. Avoid planting with easy lodging and premature aging varieties. When buying seeds, first look at whether the distribution seed unit has the approval number or official document for the variety, or do not buy it easily. Fully consider the local cultivation level and input level, according to the local land with different fertility, and different fertilization levels, select the species that adapt to the local ecological conditions and carry out reasonable collocation. For exotic breeds, choose carefully, blind introduction may bring loss to production.
The first is not conducive to the seed germination and normal emergence of maize, often there are large areas of missing shoots and three types of seedlings, and ultimately lead to severe production cuts; Second, is not conducive to the growth and development of corn seedlings, adverse soil conditions often make corn physiological metabolism Misadjustment, uneven growth in the field (the so-called cloud seedlings), some species will also appear a lot of purple seedlings, yellow seedlings, slow growth, especially in the spring when the cold weather is more serious. Therefore, when paddy fields are replanted into dry land, first of all, varieties with low temperature tolerance, hard coleoptiles, strong arching ability, fast seedling growth, and well-developed root systems should be selected.
The second is to select seeds with good seed maturity, no frostbite, high germination rate, strong bud potential, and to lay the foundation for the transformation of dry maize seedlings, seedlings, seedlings and seedlings;
The third is to select suitable varieties for the growing season. Due to the low soil temperature and slow temperature rise in the paddy fields, the soil compaction is not conducive to the early development of maize and the growth period is prolonged. Special attention must be paid to the fact that varieties with long ripening periods cannot be selected. The longest period in Shenyang is not allowed. More than 130d.
The fourth is to choose varieties with good resistance, mature stems, premature aging and lodging resistance. The water content of paddy soil is high, and the seedlings cannot stand up in the early stage, which often causes the plants to be high. Avoid planting with easy lodging and premature aging varieties. When buying seeds, first look at whether the distribution seed unit has the approval number or official document for the variety, or do not buy it easily. Fully consider the local cultivation level and input level, according to the local land with different fertility, and different fertilization levels, select the species that adapt to the local ecological conditions and carry out reasonable collocation. For exotic breeds, choose carefully, blind introduction may bring loss to production.
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