小麦生育期英文用语_小麦生育期的一些概念

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Top and Sub-soil Moisture：top-soil defined as the top 6 inches  Very short-Soil moisture supplies are significantly le than what is required for normal plant development.Growth has been stopped or nearly so and plants are showing visible signs of moisture stre.Under these conditions, plants will quickly suffer irreparable damage. Short-Soil dry.Seed germination and /or normal growth and development would be curtailed. Adequate-Soil moist.Seed germination and or/ crop growth and development would be normal or unhindered. Surplus-Soil wet.Fields may be muddy and will generally be unable to absorb additional moisture.Young developing crops may be yellowing from exce.General Crop Condition  Very poor-Extreme degree of lo to yield potential, complete or near crop failure.Pastures provide very little or no feed considering the time of year.Supplemental feeding is required to maintain livestock condition. Poor-Heavy degree of lo to yield potential which can be caused by exce soil moisture, drought, disease, etc.Pastures are providing only marginal feed for current time of year.Some supplement feeding is required to maintain livestock condition. Fair-Le than normal crop condition.Yield lo is a poible but the extent is unknown.Pastures are providing generally adequate but still le than normal for the time of year. Good-Yield prospects are normal.Moisture levels are adequate and disease, insect damage, and weed preures are minor.Pastures are providing adequate feed supplies for the current time of year. Excellent-Yield prospects are above normal.Crops are expecting little or no stre.Disease, insect damage, and weed preures are insignificant.Pastures are supplying feed in exce of what is normally expected at the current time of year.Crop Progre Percents

Progre percents relate to acres and should indicate the progre of field activities or crop development.Generally, an acre should be considered in or beyond a phonological stage when 50 percents or more of the plants in that acre are in or beyond that stage. Planted-A crop is considered planted when the seeds are planted in the ground.For transplanted crops, the planting period refers to the time of setting the plants in the field. Harvest-A crop is considered harvest when the crop is cut, threshed, or otherwise gathered from the field. Normal-The averaged rate based on the records of immediate past 5 years.Wheat Growth Stages  Emerged-As soon as the plants are visible.（出芽）

 Tilling-A plant develops branches as known “tillers”（分蘖）grown from the nodes of the stem, just below or at the soil surface.The lowest node at which a strong tiller is produced is called the “tilling node”.The sub-tillers appear from the lowest node of the first and second tillers. Jointing-Stem extension;growth of stem between nodes(joints).（节间伸张）

 Boot stage-The sage of development of florets in the head, just before heading.（孕穂期） Headed-The head is presented, visible, and fully emerged.（出穂）

 Milky stage-The stage of filling starch in the kernel, and the dough is soft and milky.Also known as “Milky ripe”.（乳熟期）

 Turing color-The head is turning color from green to brown.Leaves are also turning yellow or brown.（黄熟期.Ripe: 枯熟期）