There is lack of science based production recommendations for Jatropha in Zambia. In particular fertilizer supplementation regime and this may be contributing to observed low yield. Jatropha growers in Zambia have continued experiencing poor yields and oil of Jatropha, hence if it is to remain the best alternative for fuel there is need to improve the performance of it using mineral fertilizers. In addition, Jatropha growers experience poor yields because there has been inadequate documentation on the nutrients Nitrogen, Phosphorus, potassium and Sulphur ( NPK and S ) that increase the oil production of the plant. This paper shows the positive effects of using appropriate nutrient levels of fertilizers for the efficient production of Jatropha oil.
Effect of nutrients and terminal clipping on growth and yield of summer sesame was carried out at Agriculture College Farm, Nagpur during 2011-12. The experiment was laid out in Factorial Randomized Block Design with three nutrient treatments viz. N1 (RDF), N2 (RDF + ZnSO4), N3 (RDF + FeSO4) and four clipping treatments viz. C0(no clipping), C1(clipping at 25 DAS), C2(clipping at 35 DAS), C3(clipping at 45 DAS). There were 12 treatment combinations replicated thrice. The results of the study indicated that, significantly superior plant height, no. of branches, dry matter accumulation,no. of capsules, seed yield plant-1, seed yield kg ha-1 & oil yield kg ha-1 was recorded in nutrient treatments N2(RDF+ZnSO4) followed by N3 (RDF+FeSO4) over N1(RDF).Whereas, in clipping treatments plant height was significantly superior in C0(no clipping), no.of branches, no.of capsules, seed yield plant-1, seed yield kg ha-1 & oil yield kg ha-1 in C2(clipping at 35 DAS) followed by C1(clipping at 25 DAS) and C3(clipping at 45 DAS). GMR,NMR & B:C ratio were highest in N2 (RDF + ZnSO4) and clipping C2(clipping at 35 DAS). Fertility status was improved due to application of RDF + ZnSO4 & RDF + FeSO4.
Salinity is one of the most serious factor limiting the productivity of agricultural crops, with adverse effects on germination, plant vigour and crop yield. However, the way in which salinity exerts its influence on these vital processes, whether it is through an osmotic effect or specific ion toxicity, is still not resolved.Our experimental results indicated that germination parameters viz., germination percentage, germination rate, root and shoot length, root and shoot dry weight and relative water content were significantly reduced due to effect of ion stress induced by NaCl and water stress induced by PEG-8000. The -1.0MPa water potential was found to be a completely inhibitory for seed germination. Ionic stress was found more inhibitory than water stress. The photosynthetic parameters viz. photosynthesis rate, transpiration rate, stomatal conductance, and quantum efficiency of PS-II also found to decreased significantly with increase stress induced by PEG-8000 and NaCl. Based on the results of the experiment, it seems that for tomato cv.GT-2 the ionic effect of salinity is more detrimental then osmotic
Evaluation of lentil genotypes for resistance to salt stress is very important. Consequently, the aim of this study was to elucidate the effects of salt stress on seedling emergence and early seedling growth of lentil genotypes. The book consisted of evaluations of 10 genotypes of lentil at four levels of salinity viz. 0.0 mM, 20 mM, 40 mM and 60 mM NaCl. 15 seeds of each genotype were sown in sterilized petridishes layered with autoclaved germination papers. The experiment was terminated on the 8th day and observations were recorded on germination percentage and various seedling traits. The genotypes exhibited significant differences for majority of traits and pooled ANOVA indicated significant differences among genotypes, salinity levels as well as the interactions between genotype x salinity levels. In general, the PCV values were higher than GCV values for all the characters. Heritability was generally high for plumule fresh weight, radicle length and seedling length across the salinity levels. Genetic advance as percentage of mean was highest for plumule to radicle length ratio followed by radicle length.
Phalaris minor is a serious grass weed of wheat in India and has evolved resistance against isoproturon. A considerable research effort has made to develop alternative weed management practices that can prevent development of herbicide resistance. The present investigation was carried out to assess the resistance against fenoxaprop and clodinafop; to evaluate the performance of new herbicides pinoxaden and a ready mix formulation of sulfosulfuron and metsulfuron against resistant P.minor biotypes and to investigate the mechanism of fenoxaprop detoxification in P.minor. The results revealed that cross resistance has evolved against fenoxaprop and clodinafop. The resistance biotypes could be partially controlled by pinoxaden a new ACCase inhibitor. However, these could be completely managed by ready mix formulation of sulfosulfuron plus metsulfuron without any adverse effects on wheat. The reversal of cross resistance to fenoxaprop could not be observed by using malathion an inhibitor of cytochrome P-450 mono-oxygenase. This study is indicative of the fact that detoxification mechanism was not involved in imparting cross resistance. If at all, it was involved only partially.
The objective of evaluate growth, enzyme activity, metabolic responses, and hematological parameters in pacamã catfish (Lophiosilurus alexandri). Four diets with different levels of substitution of the cornmeal (CM) by guava meal (GV) 0, 33, 66, and 100% were tested and the feeding rate was 6% of the total body weight. A total of 160 experimental fish with an average initial weight of 16.29 g were distributed in 16 aquaria and fed for 45 days. Growth, metabolic, and hematological parameters, and digestive enzyme activity were evaluated at the end of the experiment. The level of substitution of 100% of the growth parameters were affected by the substitution of CM by GM. No effect was recorded in survival (P0.05). The values referring to the metabolic profile and hematological parameters variables were changed when CM was substituted by GM (P0.05). The digestive enzyme activities were influenced by the substitution of CM by GM (P0.05). The CM may be replaced by GM in up to 66% in diets for pacamã catfish without impairing their performance, metabolism, hematology, or digestive enzyme activity.
Economic Effects of Land Fragmentation:Property Rights, Land Markets and Contracts in Bulgaria Institutioneller Wandel der Landwirtschaft und Ressourcennutzung /Institutional Change in Agriculture and Natural Resources. 1., Aufl. Violeta Dirimanova
The Effect of Labor Organization on Integrated Pest Management (IPM) Adoption:Empirical Study of Durian and Tangerine Production in Thailand Institutioneller Wandel der Landwirtschaft und Ressourcennutzung /Institutional Change in Agriculture and Natural Resources. 1., Aufl. Evi Irawan
From Legal Acts to Village Institutions and Forest Use Practices:Effects of Devolution in the Central Highlands of Vietnam Institutioneller Wandel der Landwirtschaft und Ressourcennutzung /Institutional Change in Agriculture and Natural Resources. 1., Aufl. Thanh Ngoc Tran
Feinstaubmasken schutzen vor wassrigen und oligen Aerosolen und Partikeln, sind aber bei schadlichen Gasen und Dampfen wirkungslos.Sie bestehen aus einem Vliesstoff, welches mit Gummibandern und einem formbaren Nasenbugel an die Gesichtsform angepasst wird. Die Atemmaske mit besonders weichem Innenvlies und Waffelmuster besitzt eine textile Bebanderung. Der M-formiger Nasenbugel sorgt fur einen sicheren Halt des stabilen Maskenkorpers. Das 3M Advanced Effect Filtermedium bietet hochsten Schutz bei geringst moglichem Atemwiderstand. Technische Daten: Mit Cool-Flow-Ausatemventil bis zum 10-fachen des Grenzwertes Einsatzgebiete: Baugewerbe, Landwirtschaft, Steinbruche, Ton- und Keramikindustrie, Eisen- und Stahlgießerei, Schiffsbau, chemische Industrie, Metallbe- und verarbeitung, pharmazeutische Industrie, Bau/Asbestabbau flexible Abdichtung