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Predicting the yield and botanical composition of multi-species grasslands remains a challenge, mainly because of the complex feedback loops of competition for resources taking place between plants above- and belowground. Individual-based models of plant communities are promising to help disentangle these interactions. In the present study, we present and evaluate a plant model dealing with the 3D...
This study used a long-term experiment to research the effects of long-term fertilization on cinnamon soil fertility and crop yield of Northern China Plain. The results showed that the soil applied N alone still holded high NO3 -- N after wheat harvesting, the followed arrival of the rainy season will increase the environmental risk of pollution to groundwater. Application of phosphate fertilizer...
The research was conducted from May to November of 2010, at the demonstrative base of scientific research of hebei academy of agriculture and forestry science in Dehe town of Shijiazhuang city, Hebei province, China. Test was conducted to define of cotton-mung bean intercropping pattern and cotton single pattern, and different N rates (100% N, 5% N off, 15% N off, 30% N off, 100% N off). The objections...
A medium culture experiment of tomato using edible fungi culture medium waste as the main component of culture medium was conducted to study the effects of different nutrient solutions, i.e. monosodium glutamate wastewater (MGW), inorganic nutrient solution (INS) and water, on the yield, fruit quality, activities of enzymes which protected against active oxygen and malondialdehyde (MDA) content in...
Pot experiment was carried out for studying the effect of different N rates, irrigation methods (flood irrigation (F), drip irrigation (D) and subirrigation (S)) and amount on the growth of pepper and soil nitrate accumulation. Three levels irrigation amount of flood irrigation were set as 100%(F1), 70%(F2), 40%(F3) of field capacity, respectively. N rate 0.3 g kg−1 (N1), 0.6 g kg−1 (N2) dry soil...
To probe appropriate methods of irrigation and fertilization for cherry-tomato in greenhouse, an experiment was conducted with 6 treatments to compare fertilizer application rates, tomato yield, nutrient uptake and utilization, and economic benefits. These 6 treatments were border irrigation (abbreviated to B), border irrigation& water-flush-fertilization (BF), drip irrigation (D), drip fertigation...
Through 3 experiments, the high-effective technology for wheat production in dry-land had been studied. The first experiment was about the condition of soil nutrient and water content in irrigated and dry-land wheat of high yield; the second experiment was about the changes of dry weight of root system after anthesis and yield in different soil thickness in dry land wheat by using soil column, and...
Pot experiments were conducted to study the effects of 8 fertilizers (NH4Cl, NH4NO3, Ca(NO3)2, CO(NH2)2, Ca(H2PO4)2, KH2PO4, K2SO4 and KCl) on Ni uptake and distribution by rice. The results indicated that nitrogen and potassium fertilizers had little effect on the biomass and yield of rice, while the phosphate fertilizers significantly increased the biomass and yield of rice. The total amounts of...
W doświadczeniu wazonowym badano wpływ obornika oraz dwu- i czteromiesięcznych kompostów, a także wermikompostów obornikowych na plon życicy wielokwiatowej, zawartość w niej azotu, a także akumulację tego pierwiastka w utworze glebowym. Stwierdzono, że średni plon uprawianej trawy, efekt plonotwórczy 1 g N, pobranie i wykorzystanie azotu w okresie dwóch lat trwania eksperymentu były niższe na obiektach...
In a 3-year pot experiment, the fertilizing value was investigated of fresh and 3 month composted waste activated sludges, FYM and their mixtures with CaO and brown-coal ash. Higher yields of maize and sunflowers were achieved from objects fertilized with waste activated sludges with the addition of ash than those with the addition of CaO or without any addition. The effectiveness of waste activated...
Carob-tree (Ceratonia siliqua L.) is a sclerophyllous leguminous tree species widely cultivated in whole Mediterranean basin. The fruits (a dry pod) are normally used after crushing to separate seed and pulp, and the seed endosperm is processed to obtain a mucilaginous gum, which is then used in a wide range of commercial food products as a thickener and stabilizer. Contrary to other traditional crops,...
The aim of these experiments was to apply magnesium (50 and 100 mg Mg kg-1 soil) to neutralise the potentially negative effects of soil contamination by cadmium (10, 20, 30 and 40 mg Cd kg-1 soil) on the number of some groups of microorganisms. Another objective was to determine the relationship between the number of these microorganisms relative to yield of yellow lupine and some physicochemical...
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