Abstract
A field experiment was conducted at Malawi Agric. Res. Station, Minia Governorate, Egypt during two successive winter seasons of 2014/2015 and 2015/2016 to study the effect of calcium humate (Ca-H), as organic soil conditioner, and nitrogen fertilizer rate under irrigation regime on soil chemical properties and faba bean productivity. The experiment was designed in a split plot design with three replicates, the main plots were occupied by three irrigation regimes: Farmer irrigation (I1), irrigation requirement with 100% WR (I2) and irrigation 75% WR(I3) while sub-plots consists of four treatments (control, 100% N(recommended dose) , Ca-Humate (40 Lfed-1) and 75% N + Ca-Humate (40 Lfed-1). Results showed that seasonal water consumptive use increased by increasing available soil moisture as a result of increasing applied water, in general, in both growth seasons. The greatest values of seasonal consumptive use was recorded under farmer practice while the lowest value was recorded under irrigation treatment 75% WR (I3).Also, the interaction effect between irrigation regime and N rates in combination with Ca-H data show that the highest water use efficiency is 1.00 kg seeds/m3water consumption was obtained by irrigation at 75% WR combined with 75% N+Ca-H at second season. The lowest water use efficiency is 0.30 kg seeds/m3 water consumption was obtained by control treatment under farmer practice. Results revealed that mean values of different irrigation regimes had significantly increased growth characters of faba bean crop (yield, biological yields, 100 seed, plant height, number of branches, number of pods) were observed with I2 (100% WR ) followed by I1 (farmer practices) and I3 (75% WR ), respectively. Applied Ca-H individually or in combination with mineral nitrogen fertilizer were significantlyincreased growth characters of faba bean (yield, biological yield, 100 seed, plant height, number of branches, number of pods) as compared to control treatment. The superior treatmentis75%N+Ca-H at 12 irrigation levels (100% WR). In addition, data reveal that I2 irrigation treatment with 75% N+Ca-H was significantly increased macronutrients total content in (straw and seeds), protein content and protein yield in faba bean crop as compared to control treatment at two successive seasons. On the other hand, chemical soil parameters (pH and EC values) were slightly affected with all applied treatments and increased gradually by decreasing irrigation water. The maximum increased was observed with I2 and applied 75%N+ Ca-H treatment. On the other hand, OM value was decreased with I3 more than I1 and I2, as well as, it was increased by applied calcium hamates application.In conclusion, the application of Ca-H in combination with mineral nitrogen fertilizers was enhanced faba bean crop production and increased NPK content, protein content and protein yield along with improved soil chemical properties under irrigation regimes. Also, Ca-H can be saved about 25% from nitrogen fertilizer dose under low amount of irrigation water.
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Claims 11
Claim · model-written summary
Seasonal water consumptive use increased with available soil moisture and applied water.
- Taxon
- faba bean
Vicia fabat0 - Treatment
- increasing applied watere0
- Outcome
- seasonal water consumptive usee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seasonal water consumptive use increased by increasing available soil moisture as a result of increasing applied water”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Water consumptive use was greatest under farmer practice and lowest at 75% WR.
- Taxon
- faba beanVicia fabat0
- Treatment
- farmer practicee0
- Outcome
- seasonal consumptive usee0
- Direction
- greateste0
- Comparator
- irrigation treatment 75% WR (I3)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest values of seasonal consumptive use was recorded under farmer practice while the lowest value was recorded under irrigation treatment 75% WR (I3).”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Water use efficiency reached 1.00 kg seeds/m3water consumption with 75% WR and 75% N plus Ca-H in the second season.
- Taxon
- faba beanVicia fabat0
- Treatment
- irrigation at 75% WR combined with 75% N+Ca-He0
- Outcome
- water use efficiencye0
- Direction
- higheste0
- Value
- 1.00 kg seeds/m3water consumptione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest water use efficiency is 1.00 kg seeds/m3water consumption was obtained by irrigation at 75% WR combined with 75% N+Ca-H at second season.”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Water use efficiency was lowest at 0.30 kg seeds/m3 water consumption for the control under farmer practice.
- Taxon
- faba beanVicia fabat0
- Treatment
- control treatment under farmer practicee0
- Outcome
- water use efficiencye0
- Direction
- loweste0
- Value
- 0.30 kg seeds/m3 water consumptione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest water use efficiency is 0.30 kg seeds/m3 water consumption was obtained by control treatment under farmer practice.”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Full irrigation requirement significantly increased faba bean yield and growth traits relative to farmer practice and 75% WR.
- Taxon
- faba beanVicia fabae0
- Treatment
- I2 (100% WR )e0
- Outcome
- yield, biological yields, 100 seed, plant height, number of branches, number of podse0
- Direction
- increasede0
- Comparator
- I1 (farmer practices) and I3 (75% WR )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different irrigation regimes had significantly increased growth characters of faba bean crop (yield, biological yields, 100 seed, plant height, number of branches, number of pods) were observed with I2 (100% WR ) followed by I1 (farmer practices) and I3 (75% WR )”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Calcium humate alone significantly increased yield and growth traits relative to control.
- Taxon
- faba beanVicia fabae0
- Treatment
- Ca-H individuallye0
- Outcome
- yield, biological yield, 100 seed, plant height, number of branches, number of podse0
- Direction
- increasede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied Ca-H individually or in combination with mineral nitrogen fertilizer were significantlyincreased growth characters of faba bean (yield, biological yield, 100 seed, plant height, number of branches, number of pods) as compared to control treatment.”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Calcium humate with mineral nitrogen significantly increased yield and growth traits relative to control.
- Taxon
- faba beanVicia fabae0
- Treatment
- in combination with mineral nitrogen fertilizere0
- Outcome
- yield, biological yield, 100 seed, plant height, number of branches, number of podse0
- Direction
- increasede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied Ca-H individually or in combination with mineral nitrogen fertilizer were significantlyincreased growth characters of faba bean (yield, biological yield, 100 seed, plant height, number of branches, number of pods) as compared to control treatment.”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
I2 irrigation with 75% N and Ca-H significantly increased straw and seed macronutrient content, protein content and protein yield.
- Taxon
- faba beanVicia fabae0
- Treatment
- I2 irrigation treatment with 75% N+Ca-He0
- Outcome
- macronutrients total content in (straw and seeds), protein content and protein yielde0
- Direction
- increasede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“I2 irrigation treatment with 75% N+Ca-H was significantly increased macronutrients total content in (straw and seeds), protein content and protein yield in faba bean crop as compared to control treatment at two successive seasons.”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Soil pH and EC were slightly affected by treatments and rose as irrigation water declined.
- Taxon
- faba beanVicia fabat0
- Treatment
- decreasing irrigation watere0
- Outcome
- chemical soil parameters (pH and EC values)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chemical soil parameters (pH and EC values) were slightly affected with all applied treatments and increased gradually by decreasing irrigation water.”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Soil organic matter decreased more with I3 than I1 or I2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OM value was decreased with I3 more than I1 and I2”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
Claim · model-written summary
Calcium humate increased soil organic matter.
- Taxon
- faba beanVicia fabat0
- Treatment
- calcium hamates applicatione0
- Outcome
- OM valuee1
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was increased by applied calcium hamates application”
t0“Faba Bean”
e1“OM value was decreased with I3 more than I1 and I2”
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