搜索结果: 1-15 共查到“农学 soil fertility”相关记录26条 . 查询时间(0.046 秒)
Long-Term Soil Fertility and Site Productivity in Stem-Only and Whole-Tree Harvested Stands in Boreal Forest of Quebec (Canada)
forest biomass whole-tree harvesting soil productivity site quality index soil provinces
2023/12/19
Using residual biomass from forest harvesting to produce energy is viewed increasingly as a means to reduce fossil fuel consumption. However, the impact such practices on soil and future site producti...
Soil fertility and productivity estimation of Pinus pinaster Aiton reforestations in Central and Northeast Chalcidice in Northern Greece
Degraded ecosystems conifer native vegetation accumulation of nutrients forest floor mineral soil
2018/3/6
Maritime pine (Pinus pinaster Aiton) is a notable fast-growing conifer, native to the Western Mediterranean Basin,
which is considered suitable for reforestations. This tree species was artificially ...
Soil fertility status of 20 seed production areas of Tectona grandis Linn. f. in Karnataka, India
soil properties seed production area fruit production
2015/3/27
The seed production area (SPA) is an improved plantation managed for production of quality seeds for a large-scale plantation programme. The soil nutrient is one of several factors affecting seed prod...
Grazing intensity affected spatial patterns of vegetation and soil fertility in a desert steppe
Grassland Dryland Sheep grazing Spatial homogeneity Nitrogen Geostatistics
2015/2/4
Spatial heterogeneities of vegetation and soil can strongly affect ecological functions of ecosystems, particularly for arid and semi-arid ecosystems where vegetation has a patchy distribution and liv...
Impact of Different Spacings of Cooking Banana Intercropped with Rubber on Soil Fertility Attributes and Maturity Rate of the Trees in a Humid Forest Area of South Eastern Nigeria
Cropping System Nutrient Stock Dry Rubber Content Earth Warm
2013/3/4
The impact of four spacing of cooking banana (CB) within the immature rubber avenues on some soil fertility attributes, maturity rate of rubber trees and dry rubber content (DRC) during the initial si...
Comparative evaluation of modified neem leaf, neem leaf and woodash extracts on soil fertility improvement, growth and yields of maize (Zea mays L.) and watermelon (Citrullus lanatus) (Sole and Intercrop)
Modified Neem Leaf Neem Leaf Wood Ash Extracts
2013/2/27
Two field experiments were carried out at Akure (7oN, 5o101E) in the rainforest zone of Nigeria in 2006 and 2007 to determine the effectiveness of neem leaf, woodash and modified neem leaf extracts as...
Soil fertility effect on water productivity of maize in the upper blue nile basin, Ethiopia
AquaCrop Simulation Water Productivity Soil Fertility Nitisols
2013/3/4
Maize (Zea mays) is among the major cereals grown in the high rainfall areas of the subSaharan Africa’s (SSA) such as the Ethiopian part of the Blue Nile basin. However, its productivity is severely c...
Adoption rate of land clearing techniques and their effects on some soil fertility parameters of an Alfisol in southwestern Nigeria
Bulldozing manual stumping slash and burn soil degradation
2011/1/13
This study aims at investigating the determining factors of land clearing techniques and their effects on some soil fertility parameters of an alfisol in a derived savanna agroecology of southwestern ...
Soil Fertility Potential for Rice Production in West African Lowlands
agro-ecological zones flood plains inland valleys mineralogical composition sulfur and zinc deficiency
2010/10/25
In this paper, we review the soil fertility characteristics and the nature of material in the West African lowlands in comparison with paddy soils in tropical Asia to examine their potential for rice ...
Organic soil fertility amendments and tritrophic relationships on cabbage in Uganda: Experiences from on-station and on-farm trials
Aphids diamondback moth market crop wastes natural enemies plant attributes
2011/1/13
Organic soil fertility amendments may have direct or indirect pest management properties through an impact on crop characters and/or the pest’s natural enemies. This study was carried out to assess th...
Integrated Effect of Mineral, Compost and Biofertilizers on Soil Fertility and Tested Crops Productivity
Biofertilizer organic manure calcareous soil maize wheat and plant nutrients
2010/11/15
Poor performance of nitrogen and micronutrients availability is one of the major factors related to crop productivity in the calcareous soil. Maize (Individual hybrid 10) and wheat (C.V. Giza 168) cro...
Soil Mineral N Dynamics in a Maize Crop Following Different Soil Fertility Amendments in Different Soil Fertility Status in Sub-humid and Semi-arid Regions in Central Kenya
N uptake Organic inputs Nitrate ammonium
2010/11/15
Nitrogen is the major limiting nutrient in crop production and it is also one of the nutrients that is easily lost from the plant-soil system in various ways. Due to this, N supply, N management and N...
Factors responsible for differences in uptake of integrated soil fertility management practices amongst smallholders in western Kenya
Adoption soil fertility integrated soil fertility management
2010/9/14
To address soil fertility depletion and the attendant low agricultural productivity in western Kenya, many attempts have been made to develop and popularize integrated soil nutrient management (INM) p...
Carbon and nitrogen mineralization from selected organic resources available to smallholder farmers for soil fertility improvement in Zimbabwe
Cattle manure Mangifera indica miombo litter N mineralization and immobilization
2010/9/10
A study was conducted to assess the N release dynamics of three organic resources widely used by smallholder farmers in sub-Saharan Africa to improve soil fertility. Addition of cattle manure, miombo ...
The Change of Cultivation and Utilization of Chinese Milk Vetch (Astragalus sinicus L.), and the Effect of Fertilizer and Soil Fertility on Paddy Field as a Green Manure
Cultivation Utilization Chinese Milk Vetch Fertilizer Soil Fertility Paddy Field
2009/8/6
The Change of Cultivation and Utilization of Chinese Milk Vetch (Astragalus sinicus L.), and the Effect of Fertilizer and Soil Fertility on Paddy Field as a Green Manure.