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multiple cropping 【農業】復種。

multiple earth

Based on the cultivated land fertility , according to grain yield , the planting coverage , the ratio of the grain crops to industrial crops and multiple crop index , the cultivated land population carrying capacity in 2010 and 2030 at the different population increasing modes were attained by predicting and analysing the food produce and the cultivated land carrying capacity 摘要以耕地地力為基礎,根據糧食單產、種植面積、糧經比和復種指數對河南省糧食產量和耕地資源承載力進行了預測和分析,得出不同人口增長模式下的河南省2010年和2030年耕地資源人口承載力。

The no - tillage and culture focus more on creating better conditions for microbe decomposing the crop residue compared with no - tillage . there are four principle in it : 1 ) successive capillary water circulation ; 2 ) successive no - tillage ; 3 ) successive multiple crop rotation ; and 4 ) successive “ ridge and furrow culture “ . by these devices taken , the soil accumulate more organic matter in shorter period compared with general no - tillage 將秸稈混入土壤中分解,壟、溝搭配,保持土壤的浸潤狀態和連續植被,不僅解決了覆蓋免耕制中有機質分解、轉化慢的問題,而且使輸入土壤的有機質分解、轉化更加迅速,所以在促進土壤有機質循環方面自然免耕制表現出明顯的優越性,土壤有機質遂表現為快速的增長。

Other factors that were found to have positive effects on soil nutrients include the multiple cropping index and the practice of plowing stalks back into the land . these findings lead to several policy recommendations . first , it shows that economic variables are very important in determining changes in soil fertility , and therefore the theory and method of economics should be taken seriously by soil scientists 然后,根據理論預期以及單因素分析結果,我們建立了土壤肥力變化的社會經濟及政策影響因素模型,分別采取差分和固定效應兩種具體模型形式,對各種可能的社會經濟及政策因素對土壤肥力變化影響的方向和程度做了定量估計。

The results indicate that ( 1 ) land production is on the basic development level , the restrictive factors of land production are the ratio of land production , product of crop , the area of medium and low production , multiple crop index 研究結果表明:土地生產力處于基本可持續發展階段。土地生產率、公頃糧食產量、中低產田的面積、復種指數等對土地生產力的持續發展起限制作用;資源環境保護從初步可持續發展到基本可持續階段。

In order to increase the fanner ' s economic benefit and sufficient use resource of field and sunlight in xinhe county of aksu area , the experiment was carried out on multiple cropping the processing tomato in intercropping system of fruit trees and winter wheat after harvest 摘要為了充分利用地力,光熱資源和提高復播指數,增加種植農戶的經濟效益,在阿克蘇地區新和縣進行了果樹行間冬麥收獲后,復播加工番茄的試驗,獲得成功。

Wheat - maize interplanting of both crops ' high yield features shorter cycling period , higher multiple cropping index , stronger fertility exhaustion and no time for soil fertility to recover 小麥-玉米套種兩作產量皆高是以周期短、復種指數高、肥力耗竭強為特征,土壤肥力沒有時間得以復原。

Study on productivity and efficiency of six different multiple cropping systems 不同復種方式的生產力和效益研究