sowing date 中文意思是什麼
sowing date
解釋
播種日期-
When the number of basic seedlings with normal sowing date was 12 * 104 per mu, the profit was highest. while under the condition of late sowing, basic seedlings 24 * 104 per mu could result in the highest profit
對于正常播期的播種量以12萬/畝基本苗時，經濟效益最高；對晚播小麥的基本苗控制在24萬/畝時，經濟效益達最高。 -
The knowledge model for pre - sowing plan design includes submodels of target yield calculation, variety selection, sowing or transplanting date, population density and sowing rate, fertilization and water management strategy
其中，播前方案設計知識模型包括產量目標、品種選擇、播栽日期、種植密度與播種量、肥料和水分運籌等。 -
The sub - model for design of population density was developed according to the principle of determining boll number from target yield, fruit node from boll number, fruit branch from fruit node and population density from fruit branch by integrating the effects of sowing date, cutout date, effective temperature accumulation above 12, variety type, and fertilizer and water management levels. sowing rate was then decided by integrating the effects of different soil water and salt contents, ph, temperature and sowing style on seedling emergence rate with relative weight method
基於「以產定鈴、以鈴定節、以節定枝、以枝定苗」的原理，同時考慮播種日期、打頂日期、 12的有效積溫、品種株型特性、肥水管理水平差異等因素來確定適宜的種植密度；在此基礎上，應用相對權重法計算土壤含水量、含鹽量以及整地質量和播種方式等多個生態環境因子對出苗率的綜合影響，進而確定播種量。 -
Primary study on autumn sowing date of waxy maize in guangzhou
廣州地區鮮食糯玉米秋季播期試驗初報 -
The sub - model for suitable sowing or transplanting date was developed according to the principle of determining variety maturity characters from planting style, variety type from variety maturity characters and user ' s requirement, and sowing date from variety and target yields
根據種植制度（種植方式）決定品種熟性，由品種熟性與用戶要求決定品種，依據品種特性和產量目標確定播種日期的原理建立播期確定知識模型。 -
The proper cultivation measures to reduce the quantity of the pathogen include sowing on suitable date, reasonable density, water quantity and fertilizer combination and avoiding highly susceptible cultivars, etc
適期播種、合理密植、視墑灌水、配方施肥、培育小麥壯苗及避免種植高感品種等均能減輕小麥秋苗帶菌量。 -
Taking jiyou no. 1 as experimental material, the effects of 8 different sowing - date and 4 harvest - time on maize yield were conducted
摘要以吉油1號玉米為試材，研究8個不同播期和4個不同收獲期對玉米產量的影響。 -
The experiment of eight sowing date with four early - mature varieties was carried out to research the law of growth stage and relationship between the law of growth stage and air temperature
摘要通過4個不同熟期早熱大豆品種8個播期試驗，研究早熟大豆品種在遲播條件下各生育階段的變化規律及其與日平均氣溫的關系。 -
The effects of sowing date, density and breed on non - ploughed potato covered with straw
密度及品種對旱地免耕稻草覆蓋馬鈴薯的影響 -
Relation between young spike differentiation of ecotypes of wheat at different sowing date in spring and temperature and leaf emergence
不同生態型小麥春播條件下幼穗分化進程與溫度和葉片出生的關系
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