ASSESSMENT OF PERFORMANCES OF YIELD AND FACTORS AFFECTING THE YIELD IN SOME SOYBEAN VARIETIES/LINES GROWN UNDER SEMI-ARID CLIMATE CONDITIONS

This study was conducted to comparatively assess the effects of fertilization typology (organic, inorganic, and biofertilization) on the growth, yield, and compositional profile of Jew’s mallow. The experiment was carried out over two growing seasons, under semi-arid climate conditions on silty loam soil. We adopted three fertilization strategies: (1) inorganic NPK fertilizer (146, 74, and 57 kg ha−1 for N, P2O5, and K2O, respectively), (2) farmyard manure (36 m3 ha−1), and (3) a biofertilizer (a set of mixed cultures of Bacillus spp., Candida spp., and Trichoderma spp. at 36 L ha−1). Treatment combinations were control (without fertilization, T1), NPK fertilizer (T2), farmyard manure (FYM, T3), biofertilizer (T4), NPK+biofertilizer (T5), and FYM+biofertilizer (T6). The T5 treatment maximized both plant and leaf biomass (up to 31.6 and 8.0 t ha−1, respectively), plant height (68.5 cm), leaf area (370 cm m−2), leaf protein content (18.7%), as well as N, P, and K concentration in leaves (2.99, 0.88, and 2.01 mg 100 g−1, respectively). The leaves’ weight incidence was lower in T5 treatment (36.7%) as compared to the unfertilized plants (T1). The results revealed that the combined application of inorganic NPK plus biofertilizer is most beneficial to increase growth, yield, and nutrient accumulation in Jew’s mallow plants.

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WATER PRODUCTIVITY AND YIELD RESPONSE FACTOR IN TWO CULTIVARS OF PROCESSING TOMATO AS AFFECTED BY DEFICIT IRRIGATION UNDER SEMI-ARID CLIMATE CONDITIONS

Acta Horticulturae ◽

10.17660/actahortic.2014.1038.55 ◽

2014 ◽

pp. 449-454 ◽

Cited By ~ 4

Author(s):

C. Patanè ◽

S. La Rosa ◽

A. Pellegrino ◽

O. Sortino ◽

A. Saita

Keyword(s):

Deficit Irrigation ◽

Water Productivity ◽

Arid Climate ◽

Yield Response ◽

Response Factor ◽

Climate Conditions ◽

Processing Tomato ◽

Yield Response Factor ◽

Semi Arid

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Hydraulics of sub-superficial flow constructed wetlands in semi arid climate conditions

Water Science & Technology ◽

10.2166/wst.2003.0670 ◽

2003 ◽

Vol 47 (7-8) ◽

pp. 49-55 ◽

Cited By ~ 22

Author(s):

E. Ranieri

Keyword(s):

Constructed Wetlands ◽

Root Zone ◽

Treatment Plant ◽

Arid Climate ◽

Zone Method ◽

Climate Conditions ◽

Hydraulic Gradients ◽

Very High ◽

Semi Arid

This paper reports the evaluation of the hydraulics of two constructed wetland (cws) plants located in Apulia (the South Eastern Italy region characterized by semi arid climate conditions). These fields were planted with Phragmites australis hydrophytes and are supplied with local secondary wastewater municipal treatment plant effluent. Each plant - Kickuth Root-Zone method based - covers an area of approx. 2,000 m2. The evapotranspiration phenomenon has been evaluated within perforated tubes fixed to the field bottom and very high values - up to 40 mm/d - were found. Hydraulic conductivity has been evaluated by in situ measurements at different field points. Hydraulic gradients and the piezometric curve within the field are also reported.

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DRIS Norms for grafted and non-grafted red bell pepper in semi arid climate conditions in a greenhouse

Horticultura Brasileira ◽

10.1590/s0102-053620180314 ◽

2018 ◽

Vol 36 (3) ◽

pp. 371-376 ◽

Cited By ~ 1

Author(s):

Esteban Sánchez ◽

Juan Manuel Soto-Parra ◽

Pablo Preciado-Rangel ◽

Alfonso Llanderal ◽

María Teresa Lao

Keyword(s):

Crop Production ◽

Block Design ◽

Bell Pepper ◽

Arid Climate ◽

Nutrient Ratios ◽

Climate Conditions ◽

Mature Leaves ◽

Randomized Block Design ◽

Coefficients Of Variation ◽

Semi Arid

ABSTRACT The objective of this study was to compute and compare DRIS norms for grafted and non-grafted red bell pepper crops grown in semi arid climate conditions. DRIS norms were computed with 84 samples of first young mature leaves collected during developed stage. The experiment had a completely randomized block design, and the values obtained for each plant and each variable were considered as independent replicates. Thirty-two DRIS norms nutrient ratios and coefficients of variation (CV) were computed from N, P, K, Ca, Mg, Fe, Cu, Zn and Mn analytical results. The ratios P/N and K/N in grafted and non-grafted pepper plants, showed low CV and therefore may play a fundamental role in crop production according with the DRIS norms calculated, since as light modification in the nutrient concentration led to a significant change in the nutritional balance. In conclusion, DRIS norms are sensitive for grafted and non-grafted plants. This work may signify an improvement in the nutritional diagnosis of grafted and non-grafted red bell pepper in semi arid climate conditions under a shaded greenhouse.

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